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Gilani SI, Buglioni A, Cornell LD. IgG4-related kidney disease: Clinicopathologic features, differential diagnosis, and mimics. Semin Diagn Pathol 2024; 41:88-94. [PMID: 38246802 DOI: 10.1053/j.semdp.2023.12.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 12/11/2023] [Indexed: 01/23/2024]
Abstract
IgG4-related kidney disease (IgG4-RKD) encompasses all forms of kidney disease that are part of IgG4-related disease (IgG4-RD). First recognized as IgG4-related tubulointerstitial nephritis (IgG4-TIN), and then IgG4-related membranous glomerulonephritis (IgG4-MGN), we now recognize additional patterns of interstitial nephritis, glomerular disease, and vascular disease that can be seen as part of IgG4-RKD. The clinical presentation is variable and can include acute or chronic kidney injury, proteinuria or nephrotic syndrome, mass lesion(s), and obstruction. While usually associated with other organ involvement by IgG4-RD, kidney-alone involvement is present in approximately 20 % of IgG4-RKD. Compared to IgG4-RD overall, patients with IgG4-RKD are more likely to show increased serum IgG4 or IgG, and more likely to have hypocomplementemia. In this review, we extensively cover other types of autoimmune and plasma cell-rich interstitial nephritis, mass forming inflammatory diseases of the kidney, and other mimics of IgG4-TIN, in particular ANCA-associated disease.
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Affiliation(s)
- Sarwat I Gilani
- Department of Pathology and Laboratory Medicine, University of Texas Health Science Center at San Antonio, TX, USA
| | - Alessia Buglioni
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota, USA
| | - Lynn D Cornell
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota, USA.
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De la Hoz I, Osman A, Ryad R, Li W, Shah S, Notman D, Isea L, Tambunan D. A Rare Presentation of Sarcoidosis in a Young Male With Acute Renal Failure: A Case Report and Literature Review. Cureus 2023; 15:e49512. [PMID: 38152816 PMCID: PMC10752653 DOI: 10.7759/cureus.49512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/21/2023] [Indexed: 12/29/2023] Open
Abstract
Sarcoidosis presents in a variety of ways, but historically, renal involvement has been considered rare with an incidence of 0.7% and is seldom the presenting feature of the illness. Concomitant involvement of kidney and bone marrow is extremely rare. Atypical forms of presentation, such as in this case, may pose a true diagnostic challenge. A 20-year-old African-American male presented to the emergency department with vague symptoms including fatigue, malaise, anorexia, right-sided lower back pain, and nausea. Acute kidney injury was clearly evident, creatinine was 19.78 mg/dL (normal range 0.60-1.20 mg/dL), and BUN was 124.0 mg/dL (normal range 5.0-25.0 mg/dL). Laboratory results were also remarkable for leukopenia, microcytic anemia, hyperkalemia, anion gap metabolic acidosis, and non-PTH dependent hypercalcemia. Interestingly, urinalysis was equivocal and both chest x-ray (CXR) and abdominopelvic computed tomography (CT) scan were unrevealing. The patient was admitted to the hospital and required renal replacement therapy to stabilize his clinical condition while planning for a renal biopsy that was later performed. While awaiting pathological results, pancytopenia developed, and a bone marrow biopsy was then obtained. On further investigation, angiotensin-converting enzyme (ACE) turned out to be significantly elevated suggesting sarcoidosis. Renal biopsy showed moderate acute tubular injury, tubulitis, extensive interstitial edema, and infiltration by numerous non-caseating granulomas, which confirmed the diagnosis of sarcoidosis. Bone marrow histopathology revealed hypocellularity but no granulomatous infiltration. The patient remained largely asymptomatic throughout his hospital stay, with no signs or symptoms suggesting the involvement of other organs. High-dose corticosteroids were started and continued outpatient after discharge while still on hemodialysis. Pancytopenia resolved while on glucocorticoids and improvement in renal function was such that after roughly two months of steroids, renal replacement therapy was no longer necessary. Overall, kidney injury severe enough to require hemodialysis associated with pancytopenia in a previously healthy 20-year-old constitutes a rather rare sarcoidosis presentation. This highlights the importance of considering sarcoidosis as a possible cause of kidney and bone marrow dysfunction and emphasizes the need for timely biopsy to facilitate accurate diagnosis and early initiation of appropriate therapy to avoid delayed or inadequate care, especially considering that even severe damage is potentially reversible when identified early and treated promptly.
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Affiliation(s)
| | - Alsayed Osman
- Internal Medicine, AdventHealth Orlando, Orlando, USA
| | - Robert Ryad
- Internal Medicine, AdventHealth Orlando, Orlando, USA
| | - Weiying Li
- Internal Medicine, AdventHealth Orlando, Orlando, USA
| | - Shuva Shah
- Internal Medicine, AdventHealth Orlando, Orlando, USA
| | - David Notman
- Internal Medicine, Mountain Air Health Education Center, Asheville, USA
| | - Luis Isea
- Internal Medicine, AdventHealth Orlando, Orlando, USA
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Gaspert A, Büttner-Herold M, Amann K. [Basic nephropathology for pathologists-part 2 : Non-inflammatory lesions]. PATHOLOGIE (HEIDELBERG, GERMANY) 2023:10.1007/s00292-023-01204-6. [PMID: 37368052 DOI: 10.1007/s00292-023-01204-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 02/17/2023] [Indexed: 06/28/2023]
Abstract
The evaluation of kidney biopsies for specific renal diseases or kidney transplant biopsies is mainly restricted to specialized centers. Lesions in nonneoplastic renal tissue in partial nephrectomies or nephrectomies due to renal tumors, especially noninflammatory, ischemic, vascular changes or diabetic nephropathy can be of greater prognostic significance than the tumor itself in patients with a localized tumor and good tumor-associated survival. In this part of basic nephropathology for pathologists, the most common noninflammatory lesions of the vascular, glomerular and tubulo-interstitial compartment are discussed.
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Affiliation(s)
- Ariana Gaspert
- Abteilung für Nephropathologie, Institut für Pathologie und Molekularpathologie, Universitätsspital Zürich, Schmelzbergstr. 12, 8091, Zürich, Schweiz.
| | - Maike Büttner-Herold
- Abteilung für Nephropathologie, Institut für Pathologie, Friedrich-Alexander Universität Erlangen-Nürnberg und Universitätsklinikum Erlangen, Erlangen, Deutschland
| | - Kerstin Amann
- Abteilung für Nephropathologie, Institut für Pathologie, Friedrich-Alexander Universität Erlangen-Nürnberg und Universitätsklinikum Erlangen, Erlangen, Deutschland
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Zubidat D, Madden B, Kudose S, Nasr SH, Nardelli L, Fervenza FC, Sethi S. Heterogeneity of Target Antigens in Sarcoidosis-associated Membranous Nephropathy. Kidney Int Rep 2023. [DOI: 10.1016/j.ekir.2023.03.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/09/2023] Open
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Abstract
Sarcoidosis is a systemic inflammatory disease of unknown etiology. The pathogenesis rests on an aberrant T cell response to unidentified antigens in individuals predisposed by genetic and environmental factors. Increased expression of polarized macrophages and disequilibrium between effector and regulator T cells contribute to the formation of noncaseating granulomas, that are frequently found in affected organs. The main kidney abnormalities in sarcoidosis are granulomatous interstitial nephritis (GIN) and hypercalcemia-related disorders. The clinical diagnosis is difficult. The outcome is variable, ranging from spontaneous remission to end-stage kidney disease (ESKD). Early diagnosis and prompt treatment with corticosteroids can improve the prognosis. Hypercalcemia may be responsible for acute kidney injury (AKI) caused by vasoconstriction of afferent arterioles. Complications of persistent hypercalcemia include nephrocalcinosis and renal stones. In patients with ESKD, dialysis and transplantation can offer results comparable to those observed in patients with other causes of kidney failure. Based on a review of the literature, we present an overview of the etiopathogenesis, the renal manifestations of sarcoidosis and their complications, management and prognosis.
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Kohatsu K, Suzuki T, Takimoto M, Matsui K, Hashiguchi A, Koike J, Shirai S. Granulomatous interstitial nephritis with CTLA-4 haploinsufficiency: a case report. BMC Nephrol 2022; 23:367. [PMID: 36384506 PMCID: PMC9670605 DOI: 10.1186/s12882-022-02999-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Accepted: 11/03/2022] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Cytotoxic T lymphocyte antigen-4 (CTLA-4) is an essential inhibitory regulator of immune activation. CTLA-4 haploinsufficiency is known to be associated with dysregulation of FOXP3+ regulatory T cells, hyperactivation of effector T cells, and lymphocytic infiltration of multiple organs. However, there have only been a few reports of renal involvement with CTLA-4. Herein, we present a case of acute granulomatous tubulointerstitial nephritis (TIN) in a patient with CTLA-4 haploinsufficiency. CASE PRESENTATION A 44-year-old man presented with a 3-week history of fever and malaise, and subsequently developed acute kidney injury (AKI) a few days after treatment with levofloxacin (LVFX). A kidney biopsy and immunohistochemical staining revealed granulomatous TIN with dominantly infiltrating CD4+ T cells. General symptoms and renal impairment showed improvement after discontinuation of LVFX and initiation of oral steroids. However, they worsened following steroid tapering. Further, a colon biopsy analysis showed similar findings to the renal tissue analysis. We suspected that granulomatous TIN was possibly associated with CTLA-4 haploinsufficiency. Therefore, the patient was transferred to another hospital for further treatment of CTLA-4 haploinsufficiency using immunosuppressive agents. CONCLUSIONS There have been few reports regarding renal involvement of CTLA-4 haploinsufficiency. In the present case, granulomatous TIN could have arisen due to instability of immune regulatory functions, such as CTLA-4 haploinsufficiency, and treatment with LVFX could have triggered immunologic activation and severe inflammation as well as renal dysfunction.
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Affiliation(s)
- Kaori Kohatsu
- Division of Nephrology and Hypertension, Department of Internal Medicine, St. Marianna University School of Medicine, Kawasaki, Kanagawa, Japan
| | - Tomo Suzuki
- Department of Nephrology, Kameda Medical Center, Chiba, Japan
| | - Madoka Takimoto
- Department of Hematology, St. Marianna University School of Medicine Yokohama City Seibu Hospital, Yokohama, Kanagawa, Japan
| | - Katsuomi Matsui
- Department of Nephrology and Hypertension, St. Marianna University School of Medicine Yokohama City Seibu Hospital, Yokohama, Kanagawa, Japan
| | - Akinori Hashiguchi
- Department of Pathology, Keio University School of Medicine, Tokyo, Japan
| | - Junki Koike
- Department of Diagnostic Pathology, St. Marianna University School of Medicine, Kawasaki, Kanagawa, Japan
| | - Sayuri Shirai
- Division of Nephrology and Hypertension, Department of Internal Medicine, St. Marianna University School of Medicine, Kawasaki, Kanagawa, Japan.
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Suehiro Y, Ueda H, Motohashi S, Honma S, Nobayashi H, Ueda R, Maruyama Y, Horino T, Ogasawara Y, Joh K, Tsuboi N, Yokoo T. Interferon-gamma Release Assay-positive Granulomatous Interstitial Nephritis in a Patient with a History of Diffuse Large B Cell Lymphoma. Intern Med 2022. [PMID: 36351581 DOI: 10.2169/internalmedicine.0648-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Tuberculosis is a common etiology of granulomatous interstitial nephritis (GIN). However, the absence of evidence of lung involvement and lack of mycobacterial isolation in cultures make the etiological diagnosis and treatment decision challenging. We herein report a 46-year-old man with severe renal failure, a persistent fever, and a history of lymphoma. A renal biopsy exhibited GIN. Despite no evidence of tuberculosis except for a positive interferon-gamma release assay (IGRA), the patient was successfully treated with anti-tuberculosis drugs. Our case suggests that anti-tuberculosis therapy should be considered for patients with IGRA-positive GIN after excluding other etiologies.
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Affiliation(s)
- Yohei Suehiro
- Division of Nephrology and Hypertension, the Jikei University School of Medicine, Japan
| | - Hiroyuki Ueda
- Division of Nephrology and Hypertension, the Jikei University School of Medicine, Japan
| | - Saya Motohashi
- Division of Nephrology and Hypertension, the Jikei University School of Medicine, Japan
| | - Shiko Honma
- Department of Pathology, the Jikei University School of Medicine, Japan
| | - Hiroki Nobayashi
- Division of Nephrology and Hypertension, the Jikei University School of Medicine, Japan
| | - Risa Ueda
- Division of Nephrology and Hypertension, the Jikei University School of Medicine, Japan
| | - Yukio Maruyama
- Division of Nephrology and Hypertension, the Jikei University School of Medicine, Japan
| | - Tetsuya Horino
- Department of Infectious Diseases and Infection Control, the Jikei University School of Medicine, Japan
| | - Yoji Ogasawara
- Division of Clinical Oncology/Hematology, Department of Internal Medicine, the Jikei University School of Medicine, Japan
| | - Kensuke Joh
- Department of Pathology, the Jikei University School of Medicine, Japan
| | - Nobuo Tsuboi
- Division of Nephrology and Hypertension, the Jikei University School of Medicine, Japan
| | - Takashi Yokoo
- Division of Nephrology and Hypertension, the Jikei University School of Medicine, Japan
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Wang R, Chen X, Su T. Renal sarcoidosis: Local renal turgescence, hypermetabolic 18F-FDG lesions, and granulomatous interstitial nephritis. Am J Med Sci 2022; 364:e1-e3. [PMID: 35598823 DOI: 10.1016/j.amjms.2022.05.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 04/21/2022] [Accepted: 05/16/2022] [Indexed: 01/25/2023]
Affiliation(s)
- Rui Wang
- Department of Radiology, Peking University First Hospital, Beijing, China
| | - Xueqi Chen
- Department of Nuclear Medicine, Peking University First Hospital, Beijing, China
| | - Tao Su
- Renal Division, Department of Medicine, Peking University First Hospital, Beijing, China; Institute of Nephrology, Peking University, Beijing, China.
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Rastelli F, Baragetti I, Buzzi L, Ferrario F, Benozzi L, Di Nardo F, Devoti E, Cancarini G, Mezzina N, Napodano P, Gallieni M, Santoro D, Buemi M, Pecchini P, Malberti F, Colombo V, Colussi G, Sabadini E, Remuzzi G, Argentiero L, Gesualdo L, Gatti G, Trevisani F, Slaviero G, Spotti D, Baraldi O, La Manna G, Pignone E, Saltarelli M, Heidempergher M, Tedesco M, Genderini A, Ferro M, Rollino C, Roccatello D, Guzzo G, Clari R, Barbara Piccoli G, Comotti C, Brunori G, Cameli P, Bargagli E, Rottoli P, Dugo M, Cristina Maresca M, Bertoli M, Giozzet M, Brugnano R, Giovanni Nunzi E, D'Amico M, Minoretti C, Acquistapace I, Colturi C, Minola E, Camozzi M, Tosoni A, Nebuloni M, Ferrario F, Dell'Antonio G, Cusinato S, Feriozzi S, Pozzi C. Renal involvement in sarcoidosis: histological patterns and prognosis, an Italian survey. SARCOIDOSIS VASCULITIS AND DIFFUSE LUNG DISEASES 2021; 38:e2021017. [PMID: 34744417 PMCID: PMC8552569 DOI: 10.36141/svdld.v38i3.11488] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Accepted: 09/09/2021] [Indexed: 12/12/2022]
Abstract
Background Granulomatous interstitial nephritis in sarcoidosis (sGIN) is generally clinically silent, but in <1% causes acute kidney injury (AKI). Methods This Italian multicentric retrospective study included 39 sarcoidosis-patients with renal involvement at renal biopsy: 31 sGIN-AKI, 5 with other patterns (No-sGIN-AKI), 3 with nephrotic proteinuria. We investigate the predictive value of clinical features, laboratory, radiological parameters and histological patterns regarding steroid response. Primary endpoint: incident chronic kidney disease (CKD) beyond the 1°follow-up (FU) year; secondary endpoint: response at 1°line steroid therapy; combined endpoint: the association of initial steroid response and outcome at the end of FU. Results Complete recovery in all 5 No-sGIN-AKI-patients, only in 45% (13/29) sGIN-AKI-patients (p=0.046) (one lost in follow-up, for another not available renal function after steroids). Nobody had not response. Primary endpoint of 22 sGIN-AKI subjects: 65% (13/20) starting with normal renal function developed CKD (2/22 had basal CKD; median FU 77 months, 15-300). Combined endpoint: 29% (6/21) had complete recovery and final normal renal function (one with renal relapse), 48% (10/21) had partial recovery and final CKD (3 with renal relapse, of whom one with basal CKD) (p=0.024). Acute onset and hypercalcaemia were associated to milder AKI and better recovery than subacute onset and patients without hypercalcaemia, women had better endpoints than men. Giant cells, severe interstitial infiltrate and interstitial fibrosis seemed negative predictors in terms of endpoints. Conclusions sGIN-AKI-patients with no complete recovery at 1°line steroid should be treated with other immunosuppressive to avoid CKD, in particular if males with subacute onset and III stage-not hypercalcaemic AKI.
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Affiliation(s)
- Francesco Rastelli
- Nephrology SS. Trinità Hospital, Borgomanero, Italy.,Nephrology Bassini Hospital, Cinisello Balsamo, Italy
| | | | - Laura Buzzi
- Nephrology Bassini Hospital, Cinisello Balsamo, Italy
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Giuseppe Remuzzi
- Nephrology Papa Giovanni XXIII Hospital, Bergamo, Italy.,Clinical Research Centre for Rare Diseases, Mario Negri Institute for Pharmacological Research, Pediatric Nephrology Department Bergamo, Italy
| | | | | | - Guido Gatti
- Nephrology S.Raffaele Hospital, Milano, Italy
| | | | | | | | - Olga Baraldi
- Nephrology Policlino Sant'Orsola-Malpighi, Bologna, Italy
| | | | | | | | | | | | | | | | | | | | | | | | - Giorgina Barbara Piccoli
- Nephrology S.Luigi Hospital, Orbassano, Italy.,Nephrologie Centre Hospitalier du Mans, Le Mans, France
| | | | | | - Paolo Cameli
- Pneumology S.Maria alle Scotte Hospital, Siena, Italy
| | | | - Paola Rottoli
- Pneumology S.Maria alle Scotte Hospital, Siena, Italy
| | - Mauro Dugo
- Nephrology S.Maria dei Battuti Hospital, Treviso, Italy
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Claudio Pozzi
- Nephrology Bassini Hospital, Cinisello Balsamo, Italy
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Janssen U, Naderi S, Amann K. Idiopathic granulomatous interstitial nephritis and isolated renal sarcoidosis: Two diagnoses of exclusion. SAGE Open Med 2021; 9:20503121211038470. [PMID: 34408878 PMCID: PMC8366196 DOI: 10.1177/20503121211038470] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 07/22/2021] [Indexed: 02/04/2023] Open
Abstract
Granulomatous interstitial nephritis is a rare finding in renal biopsy caused by drugs, infections, and inflammatory or autoimmune diseases. Idiopathic cases account for 18% of granulomatous interstitial nephritis in native kidneys. Sarcoidosis and drugs are the most common causes of granulomatous interstitial nephritis in Western countries, while in India tuberculosis prevails. Few cases of renal sarcoidosis without extrarenal involvement, that is, isolated renal sarcoidosis, have been reported. The diagnostic criteria of isolated renal sarcoidosis remain, however, unclear. Extrarenal sarcoidosis and other etiologies of granulomatous interstitial nephritis, in particular drug-related, have to be excluded. Some of these patients may develop extrarenal manifestations during follow-up. Changes in calcium and vitamin D metabolism are frequently observed in renal sarcoidosis and support its diagnosis. While non-necrotizing granulomas are a feature of sarcoidosis and drug-induced granulomatous interstitial nephritis, they also prevail in tuberculosis-associated granulomatous interstitial nephritis. Granulomatous interstitial nephritis caused by sarcoidosis and drugs usually responds to steroid therapy. A poor response to steroids may indicate an infectious etiology such as tuberculosis and should lead to a review of the initial diagnosis. This article gives an overview of the various etiologies of granulomatous interstitial nephritis, their frequency and histopathological characteristics, as well as potential biomarkers associated with renal sarcoidosis.
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Affiliation(s)
- Ulf Janssen
- Department of Nephrology and Diabetology, Kliniken Maria Hilf, Mönchengladbach, Germany
| | | | - Kerstin Amann
- Department of Nephropathology, Friedrich-Alexander University (FAU) Erlangen-Nürnberg, Erlangen, Germany
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Bae W, Kim S, Choi J, Lee TW, Bae E, Jang HN, Jung S, Lee S, Chang SH, Park DJ. Acute interstitial nephritis associated with ingesting a Momordica charantia extract: A case report. Medicine (Baltimore) 2021; 100:e26606. [PMID: 34232214 PMCID: PMC8270600 DOI: 10.1097/md.0000000000026606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 06/22/2021] [Indexed: 01/04/2023] Open
Abstract
RATIONALE Momordica charantia is often used to treat type 2 diabetes mellitus in Korea. Drug-induced acute interstitial nephritis (AIN) accounts for 60% to 70% of AIN cases. However, only 1 case of AIN associated with ingesting M charantia has been reported in the English literature. We report an extremely rare case of AIN that occurred after a patient ingested a pure M charantia extract over 7 months. PATIENT CONCERNS A 60-year-old Korean woman was admitted to our hospital for a renal biopsy. Her renal function had decreased gradually over the last 9 months without symptoms or signs. DIAGNOSIS Her blood urea nitrogen and serum creatinine levels were 29.7 mg/dL (range: 8.0-20.0 mg/dL) and 1.45 mg/dL (range: 0.51-0.95 mg/dL) on admission. Renal histology indicated AIN; there was immune cell infiltration into the interstitium, tubulitis, and epithelial casts, although the glomeruli were largely intact. INTERVENTIONS M charantia was discontinued and prednisolone was prescribed. OUTCOMES The value of serum creatinine has almost been restored to the baseline level after 3 months. CONCLUSION s: This is the first case report of AIN associated with the ingestion of a pure M charantia extract. Recognition of the possible adverse effects of these agents by physicians is very important for early diagnosis and appropriate management.
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Affiliation(s)
- Wooram Bae
- Department of Internal Medicine, Gyeongsang National University Changwon Hospital, Changwon, South Korea
| | - Seongmin Kim
- Department of Internal Medicine, Gyeongsang National University Changwon Hospital, Changwon, South Korea
| | - Jungyoon Choi
- Department of Internal Medicine, Gyeongsang National University Changwon Hospital, Changwon, South Korea
| | - Tae Won Lee
- Department of Internal Medicine, Gyeongsang National University Changwon Hospital, Changwon, South Korea
| | - Eunjin Bae
- Department of Internal Medicine, Gyeongsang National University Changwon Hospital, Changwon, South Korea
- Department of Internal Medicine, Gyeongsang National University College of Medicine, South Korea
- Institute of Health Science, Gyeongsang National University, Jinju, South Korea
| | - Ha Nee Jang
- Department of Internal Medicine, Gyeongsang National University Hospital, Jinju, South Korea
| | - Sehyun Jung
- Department of Internal Medicine, Gyeongsang National University Hospital, Jinju, South Korea
| | - Seunghye Lee
- Department of Internal Medicine, Gyeongsang National University Hospital, Jinju, South Korea
| | - Se-Ho Chang
- Department of Internal Medicine, Gyeongsang National University College of Medicine, South Korea
- Institute of Health Science, Gyeongsang National University, Jinju, South Korea
- Department of Internal Medicine, Gyeongsang National University Hospital, Jinju, South Korea
| | - Dong Jun Park
- Department of Internal Medicine, Gyeongsang National University Changwon Hospital, Changwon, South Korea
- Department of Internal Medicine, Gyeongsang National University College of Medicine, South Korea
- Institute of Health Science, Gyeongsang National University, Jinju, South Korea
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12
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Unusual cause of recurrent macroscopic hematuria in an adolescent girl: Answers. Pediatr Nephrol 2021; 36:1987-1988. [PMID: 33245420 DOI: 10.1007/s00467-020-04845-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Accepted: 10/15/2020] [Indexed: 10/22/2022]
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Zia Z, Iqbal QZ, Ruggiero RA, Pervaiz S, Chalhoub M. A Rare Case of Renal Sarcoidosis. Cureus 2021; 13:e15494. [PMID: 34268026 PMCID: PMC8262409 DOI: 10.7759/cureus.15494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/07/2021] [Indexed: 11/26/2022] Open
Abstract
Sarcoidosis is a multisystem granulomatous disorder characterized by non-caseating granulomas in multiple organs. It most commonly involves lungs and it is very rare to find isolated cases affecting other organ systems with no associated pulmonary findings. We hereby present a case of a young 30-year-old male who was referred to the hospital by his primary medical doctor due to right eye pain secondary to iritis and acute kidney injury (AKI). His initial laboratory studies revealed anemia, AKI, mild hypercalcemia, and the urinary analysis revealed proteinuria. Imaging studies were negative and a kidney biopsy was performed and showed results from the biopsy that revealed diffuse tubulointerstitial disease with early fibrosis, widespread moderate inflammation, multifocal tubulitis, and focal aggregate of epithelioid cells suggestive of granuloma consistent with sarcoidosis. The patient was treated with prednisone. Renal involvement of sarcoidosis is extremely rare (around 0.7%). It has a wide spectrum of presentation including abnormal calcium metabolism, nephrolithiasis, nephrocalcinosis, and acute tubulointerstitial nephritis with or without granulomas. This is a unique case as it shows renal sarcoidosis without coexisting pulmonary finding of hilar lymphadenopathy on chest X-ray. There are very few reported cases of renal sarcoidosis in the literature and this case can add to the pool of those cases. It also emphasizes the need for urgent renal biopsy in the settings of AKI associated with mild to moderate proteinuria. Lack of availability of comprehensive research on the disease may lead to misdiagnosis and delay in treatment.
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Affiliation(s)
- Zeeshan Zia
- Internal Medicine, Northwell Health, New York, USA
| | | | | | - Sami Pervaiz
- Pulmonary and Critical Care, Northwell Health, Staten Island, USA
| | - Michel Chalhoub
- Northwell Hofstra School of Medicine at Staten Island University Hospital, Northwell Health, Staten Island, USA
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Gnemmi V, Gibier JB, Humez S, Copin MC, Glowacki F. [Renal granulomatous nephritis: Histopathological point of view]. Ann Pathol 2020; 41:166-175. [PMID: 33277052 DOI: 10.1016/j.annpat.2020.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Revised: 07/22/2020] [Accepted: 11/03/2020] [Indexed: 11/29/2022]
Abstract
Granulomatous interstitial nephritis (NIG) is a rare form of interstitial nephritis that can be related to acute or chronic clinical presentation. NIG is characterized by granulomas located to the renal interstitium and composed of either epithelioid histiocytes with giant cells and/or of foreign body reaction. The symptoms are unspecific and associate varying degrees of renal failure with abnormal urinanalysis. Extra-renal signs may point to systemic disease. Pathological examination from kidney percutaneous biopsy or surgical resection is required to assert NIG diagnosis and to guide the etiological research. The main causes of NIG are sarcoidosis, drug reactions, mycobacterial infections and crystalline nephropathies. Sarcoidosis is characterized by non-necrotic and well-formed giant cell epithelioid interstitial granulomas. Drug reactions have less well-defined granulomas with inconstant eosinophils. The presence of caseous necrosis within giant cell and epithelioid granulomas leads to infectious NIG diagnosis (tuberculosis and fungal infection). Identification of crystals within foreign body reaction can be improved by polarized light study. Xanthogranulomatous pyelonephritis and malakoplakia are rarer causes of NIG characterized by patches of histiocytes associated with inconstant giant cells. Differential diagnoses of NIG are represented by granulomatous reactions centered on glomeruli and vessels (vasculitis and emboli of cholesterol crystals). Less than 10% of NIG are idiopathic. The prognosis and the treatment vary according to the cause. The factors of poor renal prognosis are chronic irreversible tubulo-interstitial injury (tubular atrophy and interstitial fibrosis).
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Affiliation(s)
- Viviane Gnemmi
- UMR9020 - UMR-S 1277, Inserm, CNRS, pathology department, cancer heterogeneity, plasticity and resistance to therapies, Canther, CHU de Lille, université Lille, 59000 Lille, France.
| | - Jean-Baptiste Gibier
- UMR9020 - UMR-S 1277, Inserm, CNRS, pathology department, cancer heterogeneity, plasticity and resistance to therapies, Canther, CHU de Lille, université Lille, 59000 Lille, France
| | - Sarah Humez
- UMR9020 - UMR-S 1277, Inserm, CNRS, pathology department, cancer heterogeneity, plasticity and resistance to therapies, Canther, CHU de Lille, Institut Pasteur de Lille, université Lille, 59000 Lille, France
| | - Marie-Christine Copin
- UMR9020 - UMR-S 1277, Inserm, CNRS, pathology department, cancer heterogeneity, plasticity and resistance to therapies, Canther, CHU de Lille, Institut Pasteur de Lille, université Lille, 59000 Lille, France
| | - François Glowacki
- UMR9020 - UMR-S 1277, Inserm, CNRS, nephrology department, cancer heterogeneity, plasticity and resistance to therapies, Canther, CHU de Lille, université Lille, 59000 Lille, France
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15
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Mishra KG, Ahmad A, Singh G, Tiwari R. Current Status of Genitourinary Tuberculosis: Presentation, Diagnostic Approach and Management-Single Centre Experience at IGIMS (Ptana, Bihar, India). Indian J Surg 2020. [DOI: 10.1007/s12262-020-02115-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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16
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Abe T, Nishiyama K, Yamazaki T, Miyasaka R, Honma Y, Tominaga H, Hashimoto K, Masaki T, Kamata F, Kamata M, Aoyama T, Sano T, Takeuchi Y, Naito S. A case of hemodialysis and steroid therapy for carbamazepine-induced eosinophilic granulomatosis with polyangiitis: a case report with literature review. RENAL REPLACEMENT THERAPY 2020. [DOI: 10.1186/s41100-020-00274-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Carbamazepine-induced acute kidney injury is mainly caused by acute tubulointerstitial nephritis. Only one case of carbamazepine-induced eosinophilic granulomatosis with polyangiitis (EGPA) with acute kidney injury has been reported. But the patient’s condition improved with the immediate discontinuation of carbamazepine. We present a case requiring hemodialysis and steroid therapy for carbamazepine-induced EGPA with acute kidney injury.
Case presentation
A 77-year-old man with allergic rhinitis was prescribed carbamazepine for trigeminal neuralgia 1 year ago. He developed rash and itching on the left forearm 1 month ago and was diagnosed with polymorphic exudative erythema and admitted to our hospital. Laboratory data revealed leukocytosis eosinophilia and renal failure (serum creatinine 9.2 mg/dL). Carbamazepine was discontinued, and hemodialysis was initiated because of acute uremia and oliguria. A lymphocyte stimulation test for carbamazepine was positive. Polyneuropathy in the upper and lower extremities was observed by electromyogram, and a renal biopsy indicated EGPA. The main clinical findings were allergic rhinitis, eosinophilia, and vasculitis symptoms, such as multiple mononeuritis and muscle weakness. Renal biopsy showed diffuse cellular infiltration dominated by eosinophils in the interstitium, with granulomatous changes in particular observed around the arteriole. Fibrinoid necrosis was also observed around the arteriole. We therefore made a diagnosis of carbamazepine-induced EGPA. Following steroid therapy after the discontinuation of carbamazepine, the patient was discharged from our hospital without hemodialysis. In contrast with the previous case of EGPA, the present case had the following characteristics: (1) elderly male patient, (2) hemodialysis required for acute kidney injury, and (3) improved renal function following steroid therapy after discontinuation of carbamazepine.
Conclusion
Our case report indicates that early diagnosis and appropriate therapy can improve acute kidney injury caused by carbamazepine and allow the patient to discontinue dialysis.
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17
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Wearne N, Davidson B, Blockman M, Swart A, Jones ES. HIV, drugs and the kidney. Drugs Context 2020; 9:dic-2019-11-1. [PMID: 32256631 PMCID: PMC7104683 DOI: 10.7573/dic.2019-11-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 01/18/2020] [Accepted: 02/11/2020] [Indexed: 12/20/2022] Open
Abstract
Human immunodeficiency virus (HIV) affects over 36 million people worldwide. Antiretroviral therapy (ART) is expanding and improving HIV viral suppression, resulting in increasing exposure to drugs and drug interactions. Polypharmacy is a common complication as people are living longer on ART, increasing the risk of drug toxicities. Polypharmacy is related not only to ART exposure and medication for opportunistic infections, but also to treatment of chronic lifestyle diseases. Acute kidney injury (AKI) is frequent in HIV and is commonly the result of sepsis, dehydration and drug toxicities. Furthermore, HIV itself increases the risk of chronic kidney disease (CKD). Drug treatment is often complicated in people living with HIV because of a greater incidence of AKI and/or CKD compared to the HIV-negative population. Impaired renal function affects drug interactions, drug toxicities and importantly drug dosing, requiring dose adjustment. This review discusses ART and its nephrotoxic effects, including drug–drug interactions. It aims to guide the clinician on dose adjustment in the setting of renal impairment and dialysis, for the commonly used drugs in patients with HIV.
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Affiliation(s)
- Nicola Wearne
- Groote Schuur Hospital Department of Medicine, Division of Nephrology and Hypertension, Nephrology and Hypertension Research Unit, University of Cape Town, South Africa
| | - Bianca Davidson
- Groote Schuur Hospital Department of Medicine, Division of Nephrology and Hypertension, Nephrology and Hypertension Research Unit, University of Cape Town, South Africa
| | - Marc Blockman
- Groote Schuur Hospital Department of Medicine, Division of Clinical Pharmacology, University of Cape Town, South Africa
| | - Annoesjka Swart
- Groote Schuur Hospital Department of Medicine, Division of Clinical Pharmacology, University of Cape Town, South Africa
| | - Erika Sw Jones
- Groote Schuur Hospital Department of Medicine, Division of Nephrology and Hypertension, Nephrology and Hypertension Research Unit, University of Cape Town, South Africa
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18
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Karmakar S, Basu K, Sengupta M, Sircar D, Roychowdhury A. Granulomatous Interstitial Nephritis - A Series of Six Cases. Indian J Nephrol 2019; 30:26-28. [PMID: 32015596 PMCID: PMC6977373 DOI: 10.4103/ijn.ijn_364_18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Revised: 01/07/2019] [Accepted: 02/02/2019] [Indexed: 11/04/2022] Open
Abstract
Granulomatous interstitial nephritis is an uncommon variant accounting for about 6% of all tubulointerstitial nephritis. The etiology can be drugs such as antibiotics and nonsteroidal anti-inflammatory drugs and infections such as tuberculosis, sarcoidosis, and fungal infections. Renal biopsy remains the gold standard for establishing the diagnosis. Here, we present a series of six cases of granulomatous interstitial nephritis, of which two cases were associated with lupus nephritis and another two cases with crescentic glomerulonephritis. Focal segmental glomerulosclerosis and mesangiosclerosis with chronic tubulointerstitial nephritis were detected in the rest of the cases. Most of the patients presented with features of nephrotic syndrome. Urine analysis showed albuminuria in all cases. In renal biopsy, interstitial epithelioid cell granuloma was a constant feature along with which there were foci of necrosis and moderate fibrosis in few cases. But none of our cases had any relevant history of prolonged drug intake. Tuberculosis and fungal infections were also ruled out. Thereby in this case series, we subgroup all the cases into two category four cases associated with granulomatous nephritis and two cases with idiopathic granulomatous nephritis.
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Affiliation(s)
| | - Keya Basu
- Department of Pathology, IPGMER and SSKM Hospital, Kolkata, West Bengal, India
| | - Moumita Sengupta
- Department of Pathology, IPGMER and SSKM Hospital, Kolkata, West Bengal, India
| | - Dipankar Sircar
- Department of Nephrology, IPGMER and SSKM Hospital, Kolkata, West Bengal, India
| | - Arpita Roychowdhury
- Department of Nephrology, IPGMER and SSKM Hospital, Kolkata, West Bengal, India
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19
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Figueiredo AC, Rodrigues L, Sousa V, Alves R. Granulomatous interstitial nephritis: a rare diagnosis with an overlooked culprit. BMJ Case Rep 2019; 12:e229159. [PMID: 31401569 PMCID: PMC6700544 DOI: 10.1136/bcr-2018-229159] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/28/2019] [Indexed: 11/03/2022] Open
Abstract
Granulomatous interstitial nephritis (GIN) is a rare entity identified in <1% of native kidney biopsies. The most frequent aetiology is drug-related, followed by systemic granulomatous conditions. Among drugs implicated in GIN, antibiotics and non-steroidal anti-inflammatory drugs (NSAIDs) are the most frequent. We report the case of a 45-year-old white man referred to a nephrology consult due to chronic kidney disease. He had a history of arterial hypertension with 10 years of evolution, hyperuricaemia, medicated with allopurinol and NSAID abuse for at least 20 years. Urine sediment was blunt, without proteinuria. Renal ultrasound was normal. A kidney biopsy revealed well-defined epithelioid granulomas with glomerular wrinkling and collapse. Infectious and systemic conditions were excluded, favouring the hypothesis of drug-induced GIN, probably related to NSAIDs. Kidney biopsy remains the gold standard for the diagnosis of GIN. Facing a patient with renal failure without significant proteinuria or active sediment, one should look for causes of tubulointerstitial injury.
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Affiliation(s)
| | - Luís Rodrigues
- Nephrology Department, Centro Hospitalar e Universitário de Coimbra EPE, Coimbra, Portugal
- Universidade de Coimbra Faculdade de Medicina, Coimbra, Portugal
| | - Vítor Sousa
- Anatomical Pathology Department, Centro Hospitalar e Universitário de Coimbra EPE, Coimbra, Portugal
- Coimbra's Medical College, Coimbra, Portugal
| | - Rui Alves
- Nephrology Department, Centro Hospitalar e Universitário de Coimbra EPE, Coimbra, Portugal
- Nephrology Universitary Clinic, Universidade de Coimbra Faculdade de Medicina, Coimbra, Portugal
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20
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Sekulic M, Weinblatt ME, Rennke HG. Rheumatoid Nodule Formation in the Kidney: A Diagnosis of Exclusion and a Rare Manifestation of Rheumatoid Arthritis Involving the Kidney. Kidney Int Rep 2019; 4:745-748. [PMID: 31080932 PMCID: PMC6506698 DOI: 10.1016/j.ekir.2019.01.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Affiliation(s)
- Miroslav Sekulic
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Michael E Weinblatt
- Division of Rheumatology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Helmut G Rennke
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
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21
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Davidson B, Nel D, Jones ESW, Manning K, Spies R, Bohmer R, Omar A, Ash S, Wearne N. Granulomatous interstitial nephritis on renal biopsy in human immunodeficiency virus positive patients: Prevalence and causes in Cape Town, South Africa. Nephrology (Carlton) 2019; 24:681-688. [PMID: 30663206 DOI: 10.1111/nep.13564] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/10/2019] [Indexed: 12/16/2022]
Abstract
South Africa continues to be burdened by human immunodeficiency virus (HIV) and tuberculosis (TB). In Cape Town, the epidemic of HIV-TB co-infection is as high as 70%. Granulomatous interstitial nephritis (GIN) has increased in frequency on renal biopsy. This study aimed to determine GIN prevalence and causes in HIV-positive patients as well as renal outcomes, patient survival and associated factors. This observational cohort study reviewed HIV-positive renal biopsies for GIN from 2005 to 2012. Causes of GIN (medications, TB, fungal and other), and baseline characteristics were analysed. A comparison of baseline data, renal function and survival was made between GIN and non-GIN cohorts. There were 45/316 biopsies demonstrating GIN. TB was the likely cause of GIN in 27 (60%) and 9 (20%) were due to a drug. Low estimated glomerular filtration rate was a statistically significant factor associated with mortality in both GIN (P = 0.045) and non-GIN cohorts (P < 0.000). In the GIN group, there were 12 (26.7%) deaths. Mortality for all patients was greatest in the first 6 months (P = 0.057). TB co-infection in both cohorts was associated with a higher mortality. The multivariate logistic regression demonstrated that a higher urine protein/creatinine ratio (uPCR) and lower estimated glomerular filtration rate were statistically associated with death. GIN is common in HIV-positive renal biopsies in Cape Town. TB-GIN was the commonest cause and associated with a high early mortality. GIN should be considered in HIV-positive patients with acute kidney injury, its presence conveys a survival benefit. There is a need for improved diagnostic accuracy and treatment strategies of TB-GIN.
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Affiliation(s)
- Bianca Davidson
- Department of Nephrology and Hypertension, Groote Schuur Hospital, University of Cape Town, Cape Town, South Africa.,Kidney and Hypertension Research Unit, University of Cape Town, Cape Town, South Africa
| | - Debbie Nel
- Department of Medicine, University of Cape Town, Cape Town, South Africa
| | - Erika S W Jones
- Department of Nephrology and Hypertension, Groote Schuur Hospital, University of Cape Town, Cape Town, South Africa.,Kidney and Hypertension Research Unit, University of Cape Town, Cape Town, South Africa
| | - Kathryn Manning
- Department of Surgery, University of Cape Town, Cape Town, South Africa
| | - Ruan Spies
- Department of Medicine, University of Cape Town, Cape Town, South Africa
| | - Raphaela Bohmer
- Department of Medicine, University of Cape Town, Cape Town, South Africa
| | - Aadil Omar
- Department of Medicine, University of Cape Town, Cape Town, South Africa
| | - Samantha Ash
- Department of Medicine, University of Cape Town, Cape Town, South Africa
| | - Nicola Wearne
- Department of Nephrology and Hypertension, Groote Schuur Hospital, University of Cape Town, Cape Town, South Africa.,Kidney and Hypertension Research Unit, University of Cape Town, Cape Town, South Africa
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22
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Abstract
Tubulointerstitial nephritis (TIN) is a cause of acute kidney injury in children characterized histologically by an inflammatory cell infiltrate in the kidney interstitium. The most common causes of TIN in children include medications, infections, inflammatory disorders, and genetic conditions. TIN typically presents with nonoliguric acute kidney injury and may be associated with systemic symptoms, including fever, rash, and eosinophilia. The long-term prognosis is generally favorable, with full kidney recovery; however, some patients may develop progressive chronic kidney disease. Immunosuppressive therapy may be indicated for severe or prolonged disease.
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Affiliation(s)
- Rebecca L Ruebner
- Department of Pediatrics, Division of Nephrology, Johns Hopkins University School of Medicine, 200 North Wolfe Street, Room 3055, Baltimore, MD 21287, USA.
| | - Jeffrey J Fadrowski
- Department of Pediatrics, Division of Nephrology, Johns Hopkins University School of Medicine, 200 North Wolfe Street, Room 3055, Baltimore, MD 21287, USA
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23
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Etta P. Granulomatous interstitial nephritis in native kidneys and renal allografts. INDIAN JOURNAL OF TRANSPLANTATION 2019. [DOI: 10.4103/ijot.ijot_1_19] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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24
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Borrego Utiel FJ, Luque Barona R, Pérez Del Barrio P, Borrego Hinojosa J, Ramírez Tortosa C. Acute Kidney Injury due to granulomatous interstitial nephritis induced by tramadol administration. Nefrologia 2018; 38:227-228. [PMID: 29471961 DOI: 10.1016/j.nefro.2017.05.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Revised: 03/05/2017] [Accepted: 05/18/2017] [Indexed: 10/18/2022] Open
Affiliation(s)
| | - Rafael Luque Barona
- Servicio de Anatomía Patológica, Complejo Hospitalario de Jaén, Jaén, España
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25
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Oliva-Damaso N, Oliva-Damaso E, Payan J. Acute and Chronic Tubulointerstitial Nephritis of Rheumatic Causes. Rheum Dis Clin North Am 2018; 44:619-633. [PMID: 30274627 DOI: 10.1016/j.rdc.2018.06.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Tubulointerstitial nephritis (TIN) is the second most common cause of acute intrinsic kidney injury after acute tubular necrosis. Although drug-induced forms of TIN represent the vast majority, rheumatic disease is another common cause and often underdiagnosed. Early diagnosis of acute interstitial nephritis and prompt withdrawal of the culprit medication or a correct treatment can avoid chronic damage and progressive chronic kidney disease. This review highlights the recent updates, clinical features, and treatment in TIN in autoimmune rheumatic disease.
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Affiliation(s)
- Nestor Oliva-Damaso
- Department of Medicine, Division of Nephrology, Hospital Costa del Sol, A-7, Km 187, 29305 Marbella, Malaga, Spain.
| | - Elena Oliva-Damaso
- Department of Medicine, Division of Nephrology, Hospital Doctor Negrin, Barranco de la Ballena, 35010 Las Palmas de Gran Canaria, Spain
| | - Juan Payan
- Department of Medicine, Division of Nephrology, Hospital Costa del Sol, A-7, Km 187, 29305 Marbella, Malaga, Spain
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26
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Kamata Y, Sato H, Joh K, Tsuchiya Y, Kunugi S, Shimizu A, Konta T, Baughman RP, Azuma A. Clinical characteristics of biopsy-proven renal sarcoidosis in Japan. SARCOIDOSIS VASCULITIS AND DIFFUSE LUNG DISEASES 2018; 35:252-260. [PMID: 32476910 DOI: 10.36141/svdld.v35i3.6655] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Accepted: 08/09/2018] [Indexed: 11/02/2022]
Abstract
Background: Although some articles have described renal sarcoidosis, the incidence among biopsy cases remains unclear. Here, we defined the incidence of renal sarcoidosis among renal biopsy cases and analyzed the clinical course. Methods: We performed an epidemiological study examining renal biopsy cases treated at 5 centers between January 2000 and September 2015 and identified 16 cases (7 men, 9 women; mean (±SD) age, 59.4±18.6 years) out of a total of 14191 renal biopsy cases. Renal involvement of sarcoidosis was defined as granulomatous tubulointerstitial nephritis, tubulointerstitial nephritis without granulomatous lesions, and renal calcinosis. Fifteen of the cases were treated with steroid therapy. One case initially received steroid pulse therapy. The outcome was evaluated based on the estimated glomerular filtration rate (eGFR), CKD stage, and the change in eGFR (ΔeGFR) after treatment. A favorable response was defined as ΔeGFR ≥25%. Results: The incidence of renal sarcoidosis was 0.11%. The mean eGFR was 28.2±16.1 mL/min/1.73 m2. At the last observation, the mean eGFR was 43.7±19.7 mL/min/1.73 m2. Although a favorable response to steroid therapy was found in the majority of cases (10/15, 67%), 12 of the 15 cases (80%) had residual renal dysfunction at the last observation and 8 cases (53%) had moderate to severe renal dysfunction. Conclusion: Renal sarcoidosis is extremely rare among renal biopsy cases. Among cases with an unfavorable response to steroid therapy, pathogenetic mechanisms other than sarcoidosis and severe nephron damage were observed. (Sarcoidosis Vasc Diffuse Lung Dis 2018; 35: 252-260).
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Affiliation(s)
| | - Hiroshi Sato
- Clinical Pharmacology and Therapeutics, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, Japan
| | - Kensuke Joh
- Department of Pathology Tohoku, University Graduate School of Medicine, Sendai, Japan
| | | | - Shinobu Kunugi
- Analytic Human Pathology, Nihon Medical University, Tokyo, Japan
| | - Akira Shimizu
- Analytic Human Pathology, Nihon Medical University, Tokyo, Japan
| | - Tsuneo Konta
- Department of Cardiology, Pulmonology, and Nephrology, Yamagata University, Yamagata, Japan
| | - Robert P Baughman
- Interstitial Lung Disease/Sarcoidosis Clinic, University of Cincinnati, Cincinnati, USA
| | - Arata Azuma
- Department of Pulmonary Medicine and Oncology, Graduate School of Medicine, Nihon Medical University, Tokyo, Japan
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27
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Shah KK, Pritt BS, Alexander MP. Histopathologic review of granulomatous inflammation. J Clin Tuberc Other Mycobact Dis 2017; 7:1-12. [PMID: 31723695 PMCID: PMC6850266 DOI: 10.1016/j.jctube.2017.02.001] [Citation(s) in RCA: 154] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Revised: 02/03/2017] [Accepted: 02/06/2017] [Indexed: 02/07/2023] Open
Abstract
Granulomatous inflammation is a histologic pattern of tissue reaction which appears following cell injury. Granulomatous inflammation is caused by a variety of conditions including infection, autoimmune, toxic, allergic, drug, and neoplastic conditions. The tissue reaction pattern narrows the pathologic and clinical differential diagnosis and subsequent clinical management. Common reaction patterns include necrotizing granulomas, non necrotizing granulomas, suppurative granulomas, diffuse granulomatous inflammation, and foreign body giant cell reaction. Prototypical examples of necrotizing granulomas are seen with mycobacterial infections and non-necrotizing granulomas with sarcoidosis. However, broad differential diagnoses exist within each category. Using a pattern based algorithmic approach, identification of the etiology becomes apparent when taken with clinical context. The pulmonary system is one of the most commonly affected sites to encounter granulomatous inflammation. Infectious causes of granuloma are most prevalent with mycobacteria and dimorphic fungi leading the differential diagnoses. Unlike the lung, skin can be affected by several routes, including direct inoculation, endogenous sources, and hematogenous spread. This broad basis of involvement introduces a variety of infectious agents, which can present as necrotizing or non-necrotizing granulomatous inflammation. Non-infectious etiologies require a thorough clinicopathologic review to narrow the scope of the pathogenesis which include: foreign body reaction, autoimmune, neoplastic, and drug related etiologies. Granulomatous inflammation of the kidney, often referred to as granulomatous interstitial nephritis (GIN) is unlike organ systems such as the skin or lungs. The differential diagnosis of GIN is more frequently due to drugs and sarcoidosis as compared to infections (fungal and mycobacterial). Herein we discuss the pathogenesis and histologic patterns seen in a variety of organ systems and clinical conditions.
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Affiliation(s)
- Kabeer K. Shah
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN USA
- Mayo School of Graduate Medical Education, Mayo Clinic, Rochester, MN USA
| | - Bobbi S. Pritt
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN USA
| | - Mariam P. Alexander
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN USA
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28
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Bansal R, Sharma S, Raizada A, Yadav A. Phenytoin induced granulomatous interstitial nephritis. INDIAN JOURNAL OF MEDICAL SPECIALITIES 2017. [DOI: 10.1016/j.injms.2017.04.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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29
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Abstract
Drugs are associated frequently with the development of various types of acute and chronic kidney diseases. Nephrotoxicity is associated most commonly with injury in the tubulointerstitial compartment manifested as either acute tubular injury or acute interstitial nephritis. A growing number of reports has also highlighted the potential for drug-induced glomerular disease, including direct cellular injury and immune-mediated injury. Recognition of drug-induced nephropathies and rapid discontinuation of the offending agents are critical to maximizing the likelihood of renal function recovery. This review will focus on the pathology and pathogenesis of drug-induced acute interstitial nephritis and drug-induced glomerular diseases.
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Affiliation(s)
- Paisit Paueksakon
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Agnes B Fogo
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, TN, USA
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30
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Nast CC. Medication-Induced Interstitial Nephritis in the 21st Century. Adv Chronic Kidney Dis 2017; 24:72-79. [PMID: 28284382 DOI: 10.1053/j.ackd.2016.11.016] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Revised: 11/21/2016] [Accepted: 11/21/2016] [Indexed: 01/19/2023]
Abstract
Interstitial nephritis is an immune mediated form of tubulointerstitial kidney injury that may occur secondary to drugs, autoimmune disease, infections, and hematologic disorders or as a reactive process. Drug-induced acute interstitial nephritis (DI-AIN) occurs in 0.5%-3% of all kidney biopsies and in 5%-27% of biopsies performed for acute kidney injury. Drugs are implicated in 70%-90% of biopsy-proved IN with a prevalence of 50% in less developed to 78% in more developed countries. DI-AIN typically is idiosyncratic because of a delayed hypersensitivity reaction, although some chemotherapeutic agents are permissive for immune upregulation and injure the kidney in a dose-related manner. Antibiotics are the most implicated class of medication in DI-AIN, followed by proton pump inhibitors, nonsteroidal anti-inflammatory agents, and 5-aminosalicylates. Diuretics, allopurinol, phenytoin and other anti-seizure medications, and H2 receptor antagonists are known offenders while chemotherapeutic agents are an under-recognized cause. The symptoms of DI-AIN are variable and often not specific; thus, kidney biopsy is required to make a firm diagnosis. The incidence of DI-AIN appears to be increasing, particularly in the elderly in whom kidney biopsy is underused, and identification of the offending agent may be complicated by polypharmacy. As rapid drug discontinuation may improve prognosis, the possibility of DI-AIN should always be considered in a patient with acute kidney injury.
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Farris AB, Ellis CL, Rogers TE, Chon WJ, Chang A, Meehan SM. Renal allograft granulomatous interstitial nephritis: observations of an uncommon injury pattern in 22 transplant recipients. Clin Kidney J 2017; 10:240-248. [PMID: 28396741 PMCID: PMC5381240 DOI: 10.1093/ckj/sfw117] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Accepted: 10/04/2016] [Indexed: 01/06/2023] Open
Abstract
Background: Granulomatous interstitial nephritis (GIN) is uncommon in native kidneys, and descriptions in allografts are few. We report clinical and pathologic findings in 22 allograft recipients with GIN identified in renal allograft biopsies and nephrectomies. Methods: Renal allografts with GIN were retrieved from the pathology files of two academic medical centers. Available clinical and pathologic data were compiled retrospectively for a 23-year period. Results: GIN was present in 23 specimens from 22 patients (15 males and 7 females) with allograft dysfunction [serum creatinine averaged 3.3 mg/dL (range 1.4–7.8)], at a mean age of 48 years (range 22–77). GIN was identified in 0.3% of biopsies at a mean of 552 days post transplantation (range 10–5898). GIN was due to viral (5), bacterial (5) and fungal (2) infections in 12 (54.5%), and drug exposure was the likely cause in 5 cases (22.7%). One had recurrent granulomatosis with polyangiitis. In 4 cases, no firm etiology of GIN was established. Of 18 patients with follow up data, 33.3% had a complete response to therapy, 44.5% had a partial response and 22.2% developed graft loss due to fungal and E. coli infections. All responders had graft survival for more than 1 year after diagnosis of GIN. Conclusions: Allograft GIN is associated with a spectrum of etiologic agents and was identified in 0.3% of biopsies. Graft failure occurred in 22% of this series, due to fungal and bacterial GIN; however, most had complete or partial dysfunction reversal and long–term graft survival after appropriate therapy.
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Affiliation(s)
| | | | | | | | | | - Shane M Meehan
- University of Chicago, Chicago, IL USA; Sharp Memorial Hospital, San Diego, CA, USA
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Froehner M, Meinhardt M, Parmentier S, Hugo C, Wirth MP. Renal Sarcoidosis Mimicking Xanthogranulomatous Pyelonephritis. Urology 2016; 97:e19-e20. [PMID: 27590254 DOI: 10.1016/j.urology.2016.08.031] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Revised: 08/19/2016] [Accepted: 08/25/2016] [Indexed: 11/29/2022]
Abstract
A 70-year-old male patient underwent left-sided nephrectomy for signs and symptoms that were suggestive of xanthogranulomatous pyelonephritis (recurrent fever, swollen malfunctioning kidney, granulomatous inflammation in renal biopsy). Contralateral progression and workup for further symptoms finally established the diagnosis of extrapulmonary sarcoidosis. With corticosteroid and azathioprine treatment, renal function was preserved in the long term. Awareness of similarities in computed tomography imaging and histopathological findings of xanthogranulomatous pyelonephritis and renal sarcoidosis may prevent delayed diagnosis and inappropriate treatment of the latter.
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Affiliation(s)
- Michael Froehner
- Department of Urology, University Hospital "Carl Gustav Carus", Technische Universität Dresden, Dresden, Germany.
| | - Matthias Meinhardt
- Department of Pathology, University Hospital "Carl Gustav Carus", Technische Universität Dresden, Dresden, Germany
| | - Simon Parmentier
- Department of Nephrology, University Hospital "Carl Gustav Carus", Technische Universität Dresden, Dresden, Germany
| | - Christian Hugo
- Department of Nephrology, University Hospital "Carl Gustav Carus", Technische Universität Dresden, Dresden, Germany
| | - Manfred P Wirth
- Department of Urology, University Hospital "Carl Gustav Carus", Technische Universität Dresden, Dresden, Germany
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Timmermans SAMEG, Christiaans MHL, Abdul-Hamid MA, Stifft F, Damoiseaux JGMC, van Paassen P. Granulomatous interstitial nephritis and Crohn's disease. Clin Kidney J 2016; 9:556-9. [PMID: 27478596 PMCID: PMC4957721 DOI: 10.1093/ckj/sfw041] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Accepted: 04/20/2016] [Indexed: 12/03/2022] Open
Abstract
Granulomatous interstitial nephritis has been observed in <1% of native renal biopsies. Here, we describe two patients with granulomatous interstitial nephritis in relation to Crohn's disease. Circulating helper and cytotoxic T cells were highly activated, and both cell types predominated in the interstitial infiltrate, indicating a cellular autoimmune response. After immunosuppressive treatment, renal function either improved or stabilized in both patients. In conclusion, granulomatous interstitial nephritis is a genuine extraintestinal manifestation of Crohn's disease, the treatment of which should include immunosuppressive agents.
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Affiliation(s)
- Sjoerd A M E G Timmermans
- Department of Internal Medicine, Division of Nephrology and Clinical Immunology , Maastricht University Medical Centre, Maastricht
| | - Maarten H L Christiaans
- Department of Internal Medicine, Division of Nephrology and Clinical Immunology , Maastricht University Medical Centre, Maastricht
| | - Myrurgia A Abdul-Hamid
- Department of Pathology , Maastricht University Medical Centre , Maastricht , The Netherlands
| | - Frank Stifft
- Department of Internal Medicine , Zuyderland Hospital , Sittard , The Netherlands
| | - Jan G M C Damoiseaux
- Central Diagnostic Laboratory , Maastricht University Medical Centre , Maastricht , The Netherlands
| | - Pieter van Paassen
- Department of Internal Medicine, Division of Nephrology and Clinical Immunology , Maastricht University Medical Centre, Maastricht
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Judson MA. The three tiers of screening for sarcoidosis organ involvement. Respir Med 2016; 113:42-9. [DOI: 10.1016/j.rmed.2016.02.011] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Revised: 02/22/2016] [Accepted: 02/22/2016] [Indexed: 02/08/2023]
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Granulomatous Interstitial Nephritis Presenting as Hypercalcemia and Nephrolithiasis. Case Rep Nephrol 2016; 2016:4186086. [PMID: 26904327 PMCID: PMC4745585 DOI: 10.1155/2016/4186086] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Accepted: 12/29/2015] [Indexed: 11/26/2022] Open
Abstract
We report a case of acute kidney injury as the initial manifestation of sarcoidosis. A 55-year-old male was sent from his primary care physician's office with incidental lab findings significant for hypercalcemia and acute kidney injury with past medical history significant for nephrolithiasis. Initial treatment with intravenous hydration did not improve his condition. The renal biopsy subsequently revealed granulomatous interstitial nephritis (GIN). Treatment with the appropriate dose of glucocorticoids improved both the hypercalcemia and renal function. Our case demonstrates that renal limited GIN due to sarcoidosis, although a rare entity, can cause severe acute kidney injury and progressive renal failure unless promptly diagnosed and treated.
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Heap GA, So K, Weedon M, Edney N, Bewshea C, Singh A, Annese V, Beckly J, Buurman D, Chaudhary R, Cole AT, Cooper SC, Creed T, Cummings F, de Boer NK, D'Inca R, D'Souza R, Daneshmend TK, Delaney M, Dhar A, Direkze N, Dunckley P, Gaya DR, Gearry R, Gore S, Halfvarson J, Hart A, Hawkey CJ, Hoentjen F, Iqbal T, Irving P, Lal S, Lawrance I, Lees CW, Lockett M, Mann S, Mansfield J, Mowat C, Mulgrew CJ, Muller F, Murray C, Oram R, Orchard T, Parkes M, Phillips R, Pollok R, Radford-Smith G, Sebastian S, Sen S, Shirazi T, Silverberg M, Solomon L, Sturniolo GC, Thomas M, Tremelling M, Tsianos EV, Watts D, Weaver S, Weersma RK, Wesley E, Holden A, Ahmad T. Clinical Features and HLA Association of 5-Aminosalicylate (5-ASA)-induced Nephrotoxicity in Inflammatory Bowel Disease. J Crohns Colitis 2016; 10:149-58. [PMID: 26619893 DOI: 10.1093/ecco-jcc/jjv219] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2015] [Accepted: 10/08/2015] [Indexed: 12/24/2022]
Abstract
BACKGROUND AND AIMS Nephrotoxicity is a rare idiosyncratic reaction to 5-aminosalicylate (5-ASA) therapies. The aims of this study were to describe the clinical features of this complication and identify clinically useful genetic markers so that these drugs can be avoided or so that monitoring can be intensified in high-risk patients. METHODS Inflammatory bowel disease patients were recruited from 89 sites around the world. Inclusion criteria included normal renal function prior to commencing 5-ASA, ≥50% rise in creatinine any time after starting 5-ASA, and physician opinion implicating 5-ASA strong enough to justify drug withdrawal. An adjudication panel identified definite and probable cases from structured case report forms. A genome-wide association study was then undertaken with these cases and 4109 disease controls. RESULTS After adjudication, 151 cases of 5-ASA-induced nephrotoxicity were identified. Sixty-eight percent of cases were males, with nephrotoxicity occurring at a median age of 39.4 years (range 6-79 years). The median time for development of renal injury after commencing 5-ASA was 3.0 years (95% confidence interval [CI] 2.3-3.7). Only 30% of cases recovered completely after drug withdrawal, with 15 patients requiring permanent renal replacement therapy. A genome-wide association study identified a suggestive association in the HLA region (p = 1×10(-7)) with 5-ASA-induced nephrotoxicity. A sub-group analysis of patients who had a renal biopsy demonstrating interstitial nephritis (n = 55) significantly strengthened this association (p = 4×10(-9), odds ratio 3.1). CONCLUSIONS This is the largest and most detailed study of 5-ASA-induced nephrotoxicity to date. It highlights the morbidity associated with this condition and identifies for the first time a significant genetic predisposition to drug-induced renal injury.
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Affiliation(s)
- Graham A Heap
- IBD Pharmacogenetics, Royal Devon and Exeter Foundation Trust, Exeter, UK Precision Medicine Exeter, University of Exeter, Exeter, UK
| | - Kenji So
- IBD Pharmacogenetics, Royal Devon and Exeter Foundation Trust, Exeter, UK Precision Medicine Exeter, University of Exeter, Exeter, UK
| | - Mike Weedon
- Precision Medicine Exeter, University of Exeter, Exeter, UK
| | - Naomi Edney
- Exeter Kidney Unit, Royal Devon and Exeter Foundation Trust, Exeter, UK
| | - Claire Bewshea
- IBD Pharmacogenetics, Royal Devon and Exeter Foundation Trust, Exeter, UK Precision Medicine Exeter, University of Exeter, Exeter, UK
| | - Abhey Singh
- IBD Pharmacogenetics, Royal Devon and Exeter Foundation Trust, Exeter, UK Precision Medicine Exeter, University of Exeter, Exeter, UK
| | - Vito Annese
- University Hospital AOU, Department of Emergency, 2nd Gastroenterology Unit, Florence, Italy
| | - John Beckly
- Royal Cornwall Hospital NHS Trust, Penventinnie Lane, Truro, UK
| | - Dorien Buurman
- Department of Gastroenterology and Hepatology, University of Groningen, Groningen, The Netherlands University Medical Center Groningen, Groningen, The Netherlands
| | - Rakesh Chaudhary
- Department of Gastroenterology, West Hertfordshire Hospitals NHS Trust, Watford General Hospital, Watford, UK
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Jung JH, Kang KP, Kim W, Park SK, Lee S. Nonsteroidal antiinflammatory drug induced acute granulomatous interstitial nephritis. BMC Res Notes 2015; 8:793. [PMID: 26674186 PMCID: PMC4681142 DOI: 10.1186/s13104-015-1788-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Accepted: 12/03/2015] [Indexed: 11/04/2022] Open
Abstract
Background Acute interstitial nephritis is a common cause of acute kidney injury (AKI). The granulomatous inflammation is rarely but often manifests as a form of a granulomatous interstitial nephritis (GIN) in the kidney. Acute granulomatous interstitial nephritis is mainly associated with drugs, infection and autoimmune diseases. Case presentation A 44-year-old-male visited our out-patient department with symptoms of nausea, vomiting, and general weakness that had developed over the previous 2 weeks. He had history of medication, nonsteroidal anti-inflammatory drugs. On admission to the general ward, his serum creatinine level was markedly elevated. GIN was confirmed by renal biopsy and 30 mg of corticosteroid per day was immediately initiated. Subsequently, his serum creatinine level and uremic symptoms dramatically decreased. Conclusion Acute granulomatous interstitial nephritis is a rare but important disease on AKI. As long as we can carefully exclude infectious diseases as the cause of granulomatous lesion, acute granulomatous interstitial nephritis can be treated with steroid regardless of the etiologies. Since there is no proven treatment for the GIN yet, we can carefully suggest that moderate to high dosage corticosteroid can be helpful for prognosis in case of acute granulomatous interstitial nephritis of patients with AKI.
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Affiliation(s)
- Jong Hwan Jung
- Department of Internal Medicine, Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute of Chonbuk National University Hospital, Chonbuk National University Medical School, 634-18, Keum-Am Dong, Jeonju, 561-712, Republic of Korea.
| | - Kyung Pyo Kang
- Department of Internal Medicine, Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute of Chonbuk National University Hospital, Chonbuk National University Medical School, 634-18, Keum-Am Dong, Jeonju, 561-712, Republic of Korea.
| | - Won Kim
- Department of Internal Medicine, Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute of Chonbuk National University Hospital, Chonbuk National University Medical School, 634-18, Keum-Am Dong, Jeonju, 561-712, Republic of Korea.
| | - Sung Kwang Park
- Department of Internal Medicine, Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute of Chonbuk National University Hospital, Chonbuk National University Medical School, 634-18, Keum-Am Dong, Jeonju, 561-712, Republic of Korea.
| | - Sik Lee
- Department of Internal Medicine, Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute of Chonbuk National University Hospital, Chonbuk National University Medical School, 634-18, Keum-Am Dong, Jeonju, 561-712, Republic of Korea.
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Shah S, Carter-Monroe N, Atta MG. Granulomatous interstitial nephritis. Clin Kidney J 2015; 8:516-23. [PMID: 26413275 PMCID: PMC4581373 DOI: 10.1093/ckj/sfv053] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Accepted: 06/10/2015] [Indexed: 01/29/2023] Open
Abstract
Granulomatous interstitial nephritis (GIN) is a rare entity detected in ∼0.5-0.9% of all renal biopsies. GIN has been linked to several antibiotics such as cephalosporins, vancomycin, nitrofurantoin and ciprofloxacin. It is also associated with NSAIDs and granulomatous disorders such as sarcoidosis, tuberculosis, fungal infections, and granulomatosis with polyangiitis. Renal biopsy is critical in establishing this diagnosis, and the extent of tubular atrophy and interstitial fibrosis may aid in determining prognosis. Retrospective data and clinical experience suggest that removal of the offending agent in conjunction with corticosteroid therapy often results in improvement in renal function. We describe a patient with a history of multiple spinal surgeries complicated by wound infection who presented with confusion and rash with subsequent development of acute kidney injury. Urinalysis demonstrated pyuria and eosinophiluria, and renal biopsy revealed acute interstitial nephritis with granulomas. These findings were attributed to doxycycline treatment of his wound infection. This review explores the clinical associations, presentation, diagnosis, and treatment of this uncommon cause of acute kidney injury.
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Aleckovic-Halilovic M, Nel D, Woywodt A. Granulomatous interstitial nephritis: a chameleon in a globalized world. Clin Kidney J 2015; 8:511-5. [PMID: 26413274 PMCID: PMC4581397 DOI: 10.1093/ckj/sfv092] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Accepted: 08/31/2015] [Indexed: 02/05/2023] Open
Affiliation(s)
- Mirna Aleckovic-Halilovic
- Department of Nephrology, Dialysis and Transplantation , University Clinical Hospital Tuzla , Tuzla , Bosnia and Herzegovina
| | - Debbie Nel
- University of Cape Town , Cape Town , South Africa
| | - Alexander Woywodt
- Department of Renal Medicine , Lancashire Teaching Hospitals NHS Foundation Trust , Preston, Lancashire , UK
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Agrawal V, Kaul A, Prasad N, Sharma K, Agarwal V. Etiological diagnosis of granulomatous tubulointerstitial nephritis in the tropics. Clin Kidney J 2015; 8:524-30. [PMID: 26413276 PMCID: PMC4581389 DOI: 10.1093/ckj/sfv071] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Accepted: 07/17/2015] [Indexed: 12/24/2022] Open
Abstract
Background Granulomatous tubulointerstitial nephritis (GIN) is common due to infections, drugs or sarcoidosis. However, the cause is often difficult to establish and the studies are limited. We studied the etiology of GIN and compared the clinical and histological features and outcome in different etiologies at a tertiary care center in North India. Methods Renaö biopsies from GIN cases diagnosed from January 2004 to April 2014 were retrieved. Stain for acid fast bacilli was performed in all biopsies. Etiological diagnosis was based on clinical features, extra-renal manifestations, radiology, history of drug intake and demonstration of infective agent. Tissue PCR for tubercular DNA was performed in seven biopsies. Results Seventeen GIN patients [mean age 35 ± 15 years; males 11] were identified. Tuberculosis was the commonest etiology followed by idiopathic, sarcoidosis and fungal. Both tuberculosis and sarcoidosis patients presented with subnephrotic proteinuria and raised serum creatinine. Acid fast bacilli were demonstrated in 1/9 and necrosis was demonstrated in 3/9 granulomas in tuberculosis. Tissue PCR for tubercular DNA was positive in six TB patients and negative in one sarcoidosis patient. Patients responded well to appropriate therapy. Conclusion Etiological diagnosis of GIN is essential for timely and appropriate therapy. Tuberculosis is the commonest etiology (53%) in the tropics. Necrosis in granuloma, demonstration of acid fast bacilli, blood interferon gamma release assay and urine culture is not sensitive for the diagnosis of tuberculosis in GIN. Our findings suggest that tissue PCR for tuberculosis performed in an appropriate clinical setting is useful in the diagnostic evaluation of GIN.
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Affiliation(s)
- Vinita Agrawal
- Department of Pathology , Sanjay Gandhi Post Graduate Institute of Medical Sciences , Lucknow, Uttar Pradesh , India
| | - Anupama Kaul
- Department of Nephrology , Sanjay Gandhi Postgraduate Institute of Medical Sciences , Lucknow, Uttar Pradesh , India
| | - Narayan Prasad
- Department of Nephrology , Sanjay Gandhi Postgraduate Institute of Medical Sciences , Lucknow, Uttar Pradesh , India
| | - Kusum Sharma
- Department of Medical Microbiology , Post Graduate Institute of Medical Education and Research , Chandigarh , India
| | - Vikas Agarwal
- Department of Clinical Immunology , Sanjay Gandhi Postgraduate Institute of Medical Sciences , Lucknow, Uttar Pradesh , India
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Pepple KL, Lam DL, Finn LS, Van Gelder R. Urinary β2-Microglobulin Testing in Pediatric Uveitis: A Case Report of a 9-Year-Old Boy with Renal and Ocular Sarcoidosis. Case Rep Ophthalmol 2015; 6:101-5. [PMID: 25873895 PMCID: PMC4395824 DOI: 10.1159/000381092] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
We present here a case of a 9-year-old boy with bilateral anterior uveitis and an extremely elevated urinary β2-microglobulin level (25,400 μg/l). The normal range for urinary excretion of β2-microglobulin is 0–300 μg/l. In patients with tubulointerstitial nephritis and uveitis syndrome (TINU), elevations typically range from 1,260 to 5,160 μg/l. Renal biopsy was pursued, and significant granulomatous interstitial nephritis consistent with sarcoidosis was identified. Systemic immune modulation was required for control of ocular inflammation. This case highlights the importance of urinary β2-microglobulin testing in the pediatric patient uveitis population, and additionally the need to pursue kidney biopsy in the presence of extreme elevations in urinary β2-microglobulin to differentiate between TINU and sarcoidosis.
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Affiliation(s)
- Kathryn L Pepple
- Department of Ophthalmology, University of Washington Medical School, Wash., USA
| | - Deborah L Lam
- Department of Ophthalmology, University of Washington Medical School, Wash., USA
| | - Laura S Finn
- Department of Pathology, University of Washington Medical School, Wash., USA ; Department of Laboratories, Seattle Children's Hospital, Seattle, Wash., USA
| | - Russell Van Gelder
- Department of Ophthalmology, University of Washington Medical School, Wash., USA ; Department of Pathology, University of Washington Medical School, Wash., USA ; Department of Biological Structure, University of Washington Medical School, Wash., USA
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Granulomatous interstitial nephritis secondary to chronic lymphocytic leukemia/small lymphocytic lymphoma. Ann Diagn Pathol 2015; 19:130-6. [PMID: 25795422 DOI: 10.1016/j.anndiagpath.2015.03.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Accepted: 03/03/2015] [Indexed: 02/02/2023]
Abstract
Granulomatous interstitial nephritis (GIN) is an uncommon pathologic lesion encountered in 0.5% to 5.9% of renal biopsies. Drugs, sarcoidosis, and infections are responsible for most cases of GIN. Malignancy is not an established cause of GIN. Here, we report a series of 5 patients with GIN secondary to chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL). Patients were mostly elderly white males with an established history of CLL/SLL who presented with severe renal impairment (median peak serum creatinine, 7.3 mg/dL), leukocyturia, and mild proteinuria. One had nephromegaly. In 2 patients, the development and relapse of renal insufficiency closely paralleled the level of lymphocytosis. Kidney biopsy in all patients showed GIN concomitant with CLL/SLL leukemic interstitial infiltration. Granulomas were nonnecrotizing and epithelioid and were associated with giant cells. One biopsy showed granulomatous arteritis. One patient had a granulomatous reaction in lymph nodes and skin. Steroids with/without CLL/SLL-directed chemotherapy led to partial improvement of kidney function in all patients except 1 who had advanced cortical scarring on biopsy. In conclusion, we report an association between CLL/SLL and GIN. Patients typically present with severe renal failure due to both GIN and leukemic interstitial infiltration, which tends to respond to steroids with/without CLL/SLL-directed chemotherapy. The pathogenesis of GIN in this clinical setting is unknown but may represent a local hypersensitivity reaction to the CLL/SLL tumor cells.
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Sarcoidosis in native and transplanted kidneys: incidence, pathologic findings, and clinical course. PLoS One 2014; 9:e110778. [PMID: 25329890 PMCID: PMC4203836 DOI: 10.1371/journal.pone.0110778] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Accepted: 09/22/2014] [Indexed: 11/24/2022] Open
Abstract
Renal involvement by sarcoidosis in native and transplanted kidneys classically presents as non caseating granulomatous interstitial nephritis. However, the incidence of sarcoidosis in native and transplant kidney biopsies, its frequency as a cause of end stage renal disease and its recurrence in renal allograft are not well defined, which prompted this study. The electronic medical records and the pathology findings in native and transplant kidney biopsies reviewed at the Johns Hopkins Hospital from 1/1/2000 to 6/30/2011 were searched. A total of 51 patients with a diagnosis of sarcoidosis and renal abnormalities requiring a native kidney biopsy were identified. Granulomatous interstitial nephritis, consistent with renal sarcoidosis was identified in kidney biopsies from 19 of these subjects (37%). This is equivalent to a frequency of 0.18% of this diagnosis in a total of 10,023 biopsies from native kidney reviewed at our institution. Follow-up information was available in 10 patients with biopsy-proven renal sarcoidosis: 6 responded to treatment with prednisone, one progressed to end stage renal disease. Renal sarcoidosis was the primary cause of end stage renal disease in only 2 out of 2,331 transplants performed. Only one biopsy-proven recurrence of sarcoidosis granulomatous interstitial nephritis was identified. Conclusions Renal involvement by sarcoidosis in the form of granulomatous interstitial nephritis was a rare finding in biopsies from native kidneys reviewed at our center, and was found to be a rare cause of end stage renal disease. However, our observations indicate that recurrence of sarcoid granulomatous inflammation may occur in the transplanted kidney of patients with sarcoidosis as the original kidney disease.
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Pérez-Jacoiste Asín MA, Fernández-Ruiz M, López-Medrano F, Lumbreras C, Tejido Á, San Juan R, Arrebola-Pajares A, Lizasoain M, Prieto S, Aguado JM. Bacillus Calmette-Guérin (BCG) infection following intravesical BCG administration as adjunctive therapy for bladder cancer: incidence, risk factors, and outcome in a single-institution series and review of the literature. Medicine (Baltimore) 2014; 93:236-254. [PMID: 25398060 PMCID: PMC4602419 DOI: 10.1097/md.0000000000000119] [Citation(s) in RCA: 181] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
Bacillus Calmette-Guérin (BCG) is the most effective intravesical immunotherapy for superficial bladder cancer. Although generally well tolerated, BCG-related infectious complications may occur following instillation. Much of the current knowledge about this complication comes from single case reports, with heterogeneous diagnostic and therapeutic approaches and no investigation on risk factors for its occurrence. We retrospectively analyzed 256 patients treated with intravesical BCG in our institution during a 6-year period, with a minimum follow-up of 6 months after the last instillation. We also conducted a comprehensive review and pooled analysis of additional cases reported in the literature since 1975. Eleven patients (4.3%) developed systemic BCG infection in our institution, with miliary tuberculosis as the most common form (6 cases). A 3-drug antituberculosis regimen was initiated in all but 1 patient, with a favorable outcome in 9/10 cases. There were no significant differences in the mean number of transurethral resections prior to the first instillation, the time interval between both procedures, the overall mean number of instillations, or the presence of underlying immunosuppression between patients with or without BCG infection. We included 282 patients in the pooled analysis (271 from the literature and 11 from our institution). Disseminated (34.4%), genitourinary (23.4%), and osteomuscular (19.9%) infections were the most common presentations of disease. Specimens for microbiologic diagnosis were obtained in 87.2% of cases, and the diagnostic performances for acid-fast staining, conventional culture, and polymerase chain reaction (PCR)-based assays were 25.3%, 40.9%, and 41.8%, respectively. Most patients (82.5%) received antituberculosis therapy for a median of 6.0 (interquartile range: 4.0-9.0) months. Patients with disseminated infection more commonly received antituberculosis therapy and adjuvant corticosteroids, whereas those with reactive arthritis were frequently treated only with nonsteroidal antiinflammatory drugs (p < 0.001 for all comparisons). Attributable mortality was higher for patients aged ≥65 years (7.4% vs 2.1%; p = 0.091) and those with disseminated infection (9.9% vs 3.0%; p = 0.040) and vascular involvement (16.7% vs 4.6%; p = 0.064). The scheduled BCG regimen was resumed in only 2 of 36 patients with available data (5.6%), with an uneventful outcome. In the absence of an apparent predictor of the development of disseminated BCG infection after intravesical therapy, and considering the protean variety of clinical manifestations, it is essential to keep a high index of suspicion to initiate adequate therapy promptly and to evaluate carefully the risk-benefit balance of resuming intravesical BCG immunotherapy.
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Affiliation(s)
- María Asunción Pérez-Jacoiste Asín
- Unit of Infectious Diseases (MAPJA, MFR, FLM, CL, RSJ, ML, JMA), Department of Urology (AT, AAP), and Department of Internal Medicine (SP), Hospital Universitario "12 de Octubre," Instituto de Investigación Hospital "12 de Octubre" (i+12), Madrid, Spain
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Abstract
This review discusses the various gross and histologic findings seen in renal infections due to bacteria, viruses, fungi, and mycobacteria. It is crucially important to separate infectious processes in the kidney from other inflammatory or neoplastic processes, as this will have a major impact on therapy. We describe the diagnostic features of renal infections with a specific focus on the differential diagnosis and other processes that may mimic infection. The topics discussed include acute bacterial pyelonephritis, chronic bacterial pyelonephritis, xanthogranulomatous pyelonephritis, malacoplakia, viral infections in the kidney, fungal pyelonephritis and mycobacterial infection of the kidney.
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Affiliation(s)
- Jean Hou
- Department of Pathology and Cell Biology, Columbia University Medical Center, New York Presbyterian Hospital, VC14-224, New York, NY 10032, USA
| | - Leal C Herlitz
- Division of Renal Pathology, Department of Pathology and Cell Biology, Columbia University Medical Center, New York Presbyterian Hospital, VC14-224, New York, NY 10032, USA.
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Leeaphorn N, Stokes MB, Ungprasert P, LeCates W. Idiopathic Granulomatous Interstitial Nephritis Responsive to Mycophenolate Mofetil Therapy. Am J Kidney Dis 2014; 63:696-9. [DOI: 10.1053/j.ajkd.2013.10.045] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2013] [Accepted: 08/05/2013] [Indexed: 11/11/2022]
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Colvin RB, Traum AZ, Taheri D, Jafari M, Dolatkhah S. Granulomatous Interstitial Nephritis as a Manifestation of Crohn Disease. Arch Pathol Lab Med 2014; 138:125-7. [DOI: 10.5858/arpa.2012-0224-cr] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Granulomatous interstitial nephritis is a rare extraintestinal manifestation of Crohn disease that has been described previously in 4 patients. We report a 23-year-old man with a history of Crohn disease since age 6 years who was admitted to the hospital for weight loss, fever, and bloody diarrhea in the midst of a recent flare up during the past 2 months. Investigations revealed anemia, high erythrocyte sedimentation rate, high C-reactive protein level, and an elevated serum creatinine level. Histopathologic examination of tissue specimens obtained at renal biopsy demonstrated granulomatous interstitial nephritis. Crohn disease needs to be in the differential diagnosis of granulomatous interstitial nephritis and can be a manifestation of drug allergy or the Crohn disease itself.
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Affiliation(s)
- Robert B. Colvin
- From the Departments of Pathology (Drs Colvin and Taheri) and Nephrology (Dr Traum), Massachusetts General Hospital, Harvard Medical School, Boston; the Isfahan Kidney Disease Research Center, Isfahan, Iran (Dr Taheri); and the Department of Pathology, School of Medicine (Drs Taheri and Jafari), and the Faculty of Medicine (Dolatkhah), Isfahan University of Medical Sciences, Isfahan, Iran
| | - Avram Z. Traum
- From the Departments of Pathology (Drs Colvin and Taheri) and Nephrology (Dr Traum), Massachusetts General Hospital, Harvard Medical School, Boston; the Isfahan Kidney Disease Research Center, Isfahan, Iran (Dr Taheri); and the Department of Pathology, School of Medicine (Drs Taheri and Jafari), and the Faculty of Medicine (Dolatkhah), Isfahan University of Medical Sciences, Isfahan, Iran
| | - Diana Taheri
- From the Departments of Pathology (Drs Colvin and Taheri) and Nephrology (Dr Traum), Massachusetts General Hospital, Harvard Medical School, Boston; the Isfahan Kidney Disease Research Center, Isfahan, Iran (Dr Taheri); and the Department of Pathology, School of Medicine (Drs Taheri and Jafari), and the Faculty of Medicine (Dolatkhah), Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mohsen Jafari
- From the Departments of Pathology (Drs Colvin and Taheri) and Nephrology (Dr Traum), Massachusetts General Hospital, Harvard Medical School, Boston; the Isfahan Kidney Disease Research Center, Isfahan, Iran (Dr Taheri); and the Department of Pathology, School of Medicine (Drs Taheri and Jafari), and the Faculty of Medicine (Dolatkhah), Isfahan University of Medical Sciences, Isfahan, Iran
| | - Shahaboddin Dolatkhah
- From the Departments of Pathology (Drs Colvin and Taheri) and Nephrology (Dr Traum), Massachusetts General Hospital, Harvard Medical School, Boston; the Isfahan Kidney Disease Research Center, Isfahan, Iran (Dr Taheri); and the Department of Pathology, School of Medicine (Drs Taheri and Jafari), and the Faculty of Medicine (Dolatkhah), Isfahan University of Medical Sciences, Isfahan, Iran
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48
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Naidu GD, Ram R, Swarnalatha G, Uppin M, Prayaga AK, Dakshinamurty KV. Granulomatous interstitial nephritis: Our experience of 14 patients. Indian J Nephrol 2013; 23:415-8. [PMID: 24339518 PMCID: PMC3841508 DOI: 10.4103/0971-4065.120336] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Granulomatous interstitial nephritis (GIN) is a rare condition. Drugs, infections, immune processes, and foreign body reaction are the main causes. We identified a total of 14 patients with GIN during a period of 13 years in 2798 renal biopsies. There were 8 males and 6 females in the age range of 20-70 (mean 35 ± 12) years. The serum creatinine at presentation was 6.7 ± 3.8 (range: 2.3-14.7) mg/dl. In nine patients tuberculosis was the causative agent. Drugs (n = 2) and Wegener's granulomatosis (n = 1) were other etiologies. Systemic lupus erythematosis (SLE) and Immunoglobulin A nephropathy (IgAN) were seen in one patient each. Patients with tuberculosis were treated with antituberculous therapy and three of them improved. Four out of six patients who required dialysis at presentation remained dialysis dependent, one of whom underwent renal transplantation. Two patients progressed to end stage renal disease after 7 years and 9 years each. The patients with drug induced GIN had improvement in renal function after prednisolone treatment. Patients with SLE, and Wegener's granulomatosis responded to immunosuppression. Patient with IgAN was on conservative management. Finally, six patients were on conservative management for chronic renal failure.
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Affiliation(s)
- G D Naidu
- Department of Nephrology, Nizam's Institute of Medical Sciences, Hyderabad, India
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Merchant S, Bharati A, Merchant N. Tuberculosis of the genitourinary system-Urinary tract tuberculosis: Renal tuberculosis-Part I. Indian J Radiol Imaging 2013; 23:46-63. [PMID: 23986618 PMCID: PMC3737618 DOI: 10.4103/0971-3026.113615] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Tuberculosis (TB) remains a worldwide scourge and its incidence appears to be increasing due to various factors, such as the spread of human immunodeficiency virus (HIV) and acquired immunodeficiency syndrome (AIDS). The insidious onset and non-specific constitutional symptoms of genitourinary tuberculosis (GUTB) often lead to delayed diagnosis and rapid progression to a non-functioning kidney. Due to hematogenous dissemination of TB, there is a potential risk of involvement of the contralateral kidney too. Imaging plays an important role in the making of a timely diagnosis and in the planning of treatment, and thus helps to avoid complications such as renal failure. Imaging of GUTB still remains a challenge, mainly on account of the dearth of literature, especially related to the use of the newer modalities such as magnetic resonance imaging (MRI). This two-part article is a comprehensive review of the epidemiology, pathophysiology, and imaging findings in renal TB. Various imaging features of GUTB are outlined, from the pathognomonic lobar calcification on plain film, to finer early changes such as loss of calyceal sharpness and papillary necrosis on intravenous urography (IVU); to uneven caliectasis and urothelial thickening, in the absence of renal pelvic dilatation, as well as the hitherto unreported 'lobar caseation' on ultrasonography (USG). Well-known complications of GUTB such as sinus tracts, fistulae and amyloidosis are described, along with the relatively less well-known complications such as tuberculous interstitial nephritis (TIN), which may remain hidden because of its 'culture negative' nature and thus lead to renal failure. The second part of the article reviews the computed tomography (CT) and MRI features of GUTB and touches upon future imaging techniques along with imaging of TB in transplant recipients and in immunocompromised patients.
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Affiliation(s)
- Suleman Merchant
- Department of Radiology, LTM Medical College and LTM General Hospital, Mumbai, India
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Key Diagnostic Features of Granulomatous Interstitial Nephritis Due to Encephalitozoon cuniculi in a Lung Transplant Recipient. Am J Surg Pathol 2013; 37:447-52. [DOI: 10.1097/pas.0b013e31827e1968] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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