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Wang H, Lu S, Li H, Wang Y. Mycobacterium infection secondary to exogenous lipoid pneumonia caused by nasal drops: a case report and literature review. BMC Pulm Med 2023; 23:47. [PMID: 36721116 PMCID: PMC9887914 DOI: 10.1186/s12890-022-02265-8] [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: 04/14/2022] [Accepted: 11/24/2022] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND Exogenous lipoid pneumonia (ELP) is a rare disease and its diagnosis is often mistaken or delayed. Secondary infection with rapidly growing non-tuberculous mycobacteria is a rare complication of lipoid pneumonia. CASE PRESENTATION A 38-year-old man presented with fever, cough, sputum, chest tightness, and shortness of breath. He had a 2-year history of allergic rhinitis and used liquid paraffin-containing menthol nasal drops daily. A chest CT scan showed multiple patchy ground glass opacities with blurred borders in both lungs, which were located in the inner pulmonary field and distributed along the bronchi. His ambient air PO2 was 63 mmHg. The patient was diagnosed with ELP by CT-guided lung biopsy. The nasal drops were discontinued, and systemic glucocorticoids were administered. During treatment, the pulmonary lesions deteriorated, and bronchoalveolar lavage was performed during bronchoscopy. Additionally, Mycobacterium abscessus was detected in the lavage fluid. Upon detection of a secondary M. abscessus infection, glucocorticoids were gradually discontinued, and anti-M. abscessus treatment was implemented. The patient's symptoms rapidly ameliorated. After 11 months of anti-M. abscessus treatment, a repeat CT scan showed clear regression of the lung lesions. CONCLUSION Routine microbiological examination of samples, including sputum or alveolar lavage fluid, is necessary for patients with diagnosed or suspected ELP.
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Affiliation(s)
- Huihong Wang
- grid.13402.340000 0004 1759 700XDepartment of Respiratory Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003 China ,grid.469636.8Department of Respiratory Diseases, Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, Linhai, 317000 Zhejiang Province China
| | - Shan Lu
- grid.13402.340000 0004 1759 700XDepartment of Respiratory Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003 China
| | - Hequan Li
- grid.13402.340000 0004 1759 700XDepartment of Respiratory Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003 China
| | - Yuehong Wang
- grid.13402.340000 0004 1759 700XDepartment of Respiratory Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003 China
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Pattern of FDG-PET uptake in lipoid pneumonia simulating lung cancer. Respir Med Case Rep 2020; 31:101255. [PMID: 33101898 PMCID: PMC7575797 DOI: 10.1016/j.rmcr.2020.101255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2020] [Accepted: 10/07/2020] [Indexed: 11/12/2022] Open
Abstract
Lipoid pneumonia presents with a variety of lung abnormalities, particularly mass forming lesions that mimic lung cancers. While 18F-fluorodeoxyglucose (FDG)-positron emission tomography (PET) is expected to discriminate both diseases, some previous reports showed pseudo-positive FDG uptake in lipoid pneumonia. Here, we report a case of pathologically proven chronic lipoid pneumonia in a 78-year-old Japanese man. Computed tomography (CT) showed multi-lobar mass-forming lesions with a fat-density. PET confirmed the spotty accumulation of FDG in the corresponding fat-density area on CT, suggesting lipoid pneumonia. We reviewed the literature and discussed the FDG uptake patterns in lipoid pneumonia.
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Leigh-de Rapper S, van Vuuren SF. Odoriferous Therapy: A Review Identifying Essential Oils against Pathogens of the Respiratory Tract. Chem Biodivers 2020; 17:e2000062. [PMID: 32207224 DOI: 10.1002/cbdv.202000062] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Accepted: 03/20/2020] [Indexed: 01/01/2023]
Abstract
This review explores the body of scientific information available on the antimicrobial properties of essential oils against pathogens responsible for respiratory infections and critically compares this to what is recommended in the Layman's aroma-therapeutic literature. Essential oils are predominantly indicated for the treatment of respiratory infections caused by bacteria or viruses (total 79.0 %), the efficacy of which has not been confirmed through clinical trials. When used in combination, they are often blended for presumed holistic synergistic effects. Of the essential oils recommended, all show some degree of antioxidant activity, 50.0 % demonstrate anti-inflammatory effects and 83.3 % of the essential oils showed antihistaminic activity. Of the essential oils reviewed, 43.8 % are considered non-toxic while the remaining essential oils are considered slightly to moderately toxic (43.7 %) or the toxicity is unknown (12.5 %). Recommendations are made for further research into essential oil combinations.
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Affiliation(s)
- Stephanie Leigh-de Rapper
- Department of Pharmacy and Pharmacology, Faculty of Health Sciences, University of the Witwatersrand, 7 York Road, Parktown, 2193, South Africa
| | - Sandy F van Vuuren
- Department of Pharmacy and Pharmacology, Faculty of Health Sciences, University of the Witwatersrand, 7 York Road, Parktown, 2193, South Africa
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Cozzi D, Bindi A, Cavigli E, Grosso AM, Luvarà S, Morelli N, Moroni C, Piperio R, Miele V, Bartolucci M. Exogenous lipoid pneumonia: when radiologist makes the difference. Radiol Med 2020; 126:22-28. [PMID: 32451884 DOI: 10.1007/s11547-020-01230-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Accepted: 05/12/2020] [Indexed: 11/29/2022]
Abstract
PURPOSE To report high-resolution CT (HRCT) findings in our group of patients with exogenous lipoid pneumonia (ELP), confirmed with histopathological findings and clinical-anamnestic data, in order to describe the most common radiological patterns of this rare disorder. MATERIALS AND METHODS In this retrospective study, HRCT of 10 patients with ELP were evaluated by three radiologists. Diagnosis of ELP was made through CT, bronchiolo-alveolar lavage (BAL) and a pneumological examination associated with an accurate medical anamnesis. Five patients had a histologically proven ELP, through lung biopsy. All patients had a chronic exposition to substances made of animal fat or mineral/vegetable oils. RESULTS In our cohort of patients with ELP, the following parenchymal patterns were observed: 8/10 patients had lung consolidation with adipose density (attenuation values < - 40 HU); 10/10 patients had multiple areas of ground glass opacity; 6/10 patients had smooth thickening of interlobular septa and ground glass opacities ("crazy-paving" pattern); 2/10 patients presented nodules > 2.5 cm with spiculated margins (tumor-like); 5/10 patients showed reactive lymph nodes enlargement. The oldest lesions were characterized by bronchiectasis and fibrosis around the lipidic consolidations. CONCLUSION Pulmonary alterations found in HRCT exams can be confused with other lung diseases (especially lung tumors) and they are always a challenge even for the most experienced radiologist. In our experience, although non-specific, consolidation areas with low HU values and crazy-paving pattern are frequently associated in ELP. These characteristics should alert the radiologist to consider ELP among the possible differential diagnoses, always correlating the results of CT examination with appropriate clinical-laboratory evaluations and an accurate anamnesis.
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Affiliation(s)
- Diletta Cozzi
- Department of Emergency Radiology, Careggi University Hospital, L.go Brambilla 3, 50134, Florence, Italy.
| | - Alessandra Bindi
- Department of Emergency Radiology, Careggi University Hospital, L.go Brambilla 3, 50134, Florence, Italy
| | - Edoardo Cavigli
- Department of Emergency Radiology, Careggi University Hospital, L.go Brambilla 3, 50134, Florence, Italy
| | - Anna Maria Grosso
- Unit of Pneumology and Thoracic-Pulmonary Physiopathology, Careggi University Hospital, Florence, Italy
| | - Silvia Luvarà
- Department of Emergency Radiology, Careggi University Hospital, L.go Brambilla 3, 50134, Florence, Italy
| | - Noemi Morelli
- Department of Emergency Radiology, Careggi University Hospital, L.go Brambilla 3, 50134, Florence, Italy
| | - Chiara Moroni
- Department of Emergency Radiology, Careggi University Hospital, L.go Brambilla 3, 50134, Florence, Italy
| | - Rosamaria Piperio
- Department of Interventional Pneumology, Careggi University Hospital, Florence, Italy
| | - Vittorio Miele
- Department of Emergency Radiology, Careggi University Hospital, L.go Brambilla 3, 50134, Florence, Italy
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BOUTROS J, MUZZONE M, BENZAQUEN J, LEVRAUT M, MARQUETTE CH, ROCHER F, DIASCORN Y, PADOVANI B, HOFMAN V, LEROY S. A case report of exogenous lipoid pneumonia associated with avocado/soybean unsaponifiables. BMC Pulm Med 2019; 19:234. [PMID: 31795982 PMCID: PMC6892022 DOI: 10.1186/s12890-019-0997-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Accepted: 11/14/2019] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND Exogenous lipoid pneumonia is a rare disease resulting from intra-alveolar accumulation of lipids of mineral, vegetal, or animal origin, that induce a foreign body type of inflammatory reaction in the lungs. Gastroesophageal reflux disease and other esophageal abnormalities have often been associated with this disease. CASE PRESENTATION We herein report the case of an 83-year-old patient in whom a follow-up chest computed tomography scan, for a lingular consolidation, showed multifocal ground glass and consolidative opacities with areas of low attenuation, suggestive of exogenous lipid pneumonia. The patient had been on piascledine capsules (avocado/soybean unsaponifiables) for 20 years and had a hiatal hernia with documented gastroesophageal reflux disease. After thorough history taking, no other predisposing factors were found. The diagnosis was confirmed using oil red staining of bronchoalveolar lavage showing lipid-laden macrophages and extracellular lipid droplets. CONCLUSIONS To our knowledge, this is the first case of ELP secondary to avocado/soybean unsaponifiables in the literature.
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Affiliation(s)
- Jacques BOUTROS
- Department of Pulmonary Medicine, Université Côte d’Azur, CHU de Nice, FHU OncoAge, 30 avenue de la voie Romaine, CS51069, 06001 Nice, France
| | - Marine MUZZONE
- Department of Pulmonary Medicine, Université Côte d’Azur, CHU de Nice, FHU OncoAge, 30 avenue de la voie Romaine, CS51069, 06001 Nice, France
| | - Jonathan BENZAQUEN
- Department of Pulmonary Medicine, Université Côte d’Azur, CHU de Nice, FHU OncoAge, 30 avenue de la voie Romaine, CS51069, 06001 Nice, France
- Université Côte d’Azur, CNRS UMR7284, Inserm U1081, Institute of Research on Cancer and Ageing (IRCAN), Nice, France
| | - Michael LEVRAUT
- Department of Pulmonary Medicine, Université Côte d’Azur, CHU de Nice, FHU OncoAge, 30 avenue de la voie Romaine, CS51069, 06001 Nice, France
| | - Charles-Hugo MARQUETTE
- Department of Pulmonary Medicine, Université Côte d’Azur, CHU de Nice, FHU OncoAge, 30 avenue de la voie Romaine, CS51069, 06001 Nice, France
- Université Côte d’Azur, CNRS UMR7284, Inserm U1081, Institute of Research on Cancer and Ageing (IRCAN), Nice, France
| | - Fanny ROCHER
- Université Côte d’Azur, CHU de Nice, Regional Pharmacovigilance Center, Nice, France
| | - Yann DIASCORN
- Department of Radiology, Université Côte d’Azur, CHU de Nice, Nice, France
| | - Bernard PADOVANI
- Department of Radiology, Université Côte d’Azur, CHU de Nice, Nice, France
| | - Véronique HOFMAN
- Laboratory of Clinical and Experimental Pathology, Université Côte d’Azur, CHU de Nice, FHU OncoAge, Nice, France
| | - Sylvie LEROY
- Department of Pulmonary Medicine, Université Côte d’Azur, CHU de Nice, FHU OncoAge, 30 avenue de la voie Romaine, CS51069, 06001 Nice, France
- Université Côte d’Azur, CNRS UMR 7275 - Institut de Pharmacologie Moléculaire et Cellulaire, Sophia Antipolis, France
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Goussard P, Rabie H, Morrison J, Schubert PT. Superinfection with Mycobacteria goodii in a young infant with exogenous lipoid pneumonia. Pediatr Pulmonol 2019; 54:1345-1347. [PMID: 31206238 DOI: 10.1002/ppul.24355] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Revised: 04/17/2019] [Accepted: 04/24/2019] [Indexed: 11/11/2022]
Affiliation(s)
- P Goussard
- Department of Pediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University and Tygerberg Hospital, Tygerberg, South Africa
| | - H Rabie
- Department of Pediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University and Tygerberg Hospital, Tygerberg, South Africa
| | - J Morrison
- Department of Pediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University and Tygerberg Hospital, Tygerberg, South Africa
| | - P T Schubert
- Department of Pathology, Division of Anatomical Pathology, Faculty of Medicine and Health Sciences, Stellenbosch University and Tygerberg Hospital, Tygerberg, South Africa
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Chardin D, Nivaggioni G, Viau P, Butori C, Padovani B, Grangeaon C, Razzouk-Cadet M. False positive 18FDG PET-CT results due to exogenous lipoid pneumonia secondary to oily drug inhalation: A case report. Medicine (Baltimore) 2017; 96:e6889. [PMID: 28562539 PMCID: PMC5459704 DOI: 10.1097/md.0000000000006889] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
RATIONALE Exogenous lipoid pneumonia is a rare condition due to abnormal presence of oily substances in the lungs. It is a rarely known cause for false positive FDG PET-CT results and can sometimes lead to invasive investigations. Searching and finding the source of the oily substance is one of the keys to the diagnosis. Inhalation of oily drugs during snorting has rarely been described. PATIENT CONCERNS A patient with well controlled HIV infection was referred for an FDG PET-CT to assess extension of Kaposi's disease, recently removed from his right foot. The patient had no particular symptoms. DIAGNOSES Abnormal uptake of FDG was found in a suspicious lung nodule. An experienced radiologist thought the nodule was due to lipoid pneumonia. INTERVENTIONS Bronchoalveolar lavage fluid did not contain lipid-laden macrophages but bronchoscopy showed violet lesions resembling Kaposi's disease lesions. Lobectomy was performed after a multidisciplinary discussion. OUTCOMES Anatomopathological analysis revealed the nodule was due to lipoid pneumonia. The patient's quality of life did not diminish after the operation and he is still in good health. The source of the oily substance causing lipoid pneumonia was found after the surgery: the patient used to snort oily drugs. LESSONS The presence of a suspicious lung nodule possibly due to lipoid pneumonia in a patient with known Kaposi's disease was difficult to untangle and lead to invasive surgery. It is possible that if a source of exogenous lipoid pneumonia had been found beforehand, surgery could have been prevented.
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Affiliation(s)
- David Chardin
- Department of Nuclear Medicine, Centre Hospitalier Régional et Universitaire de Nice, Hôpital Archet I
| | - Guillaume Nivaggioni
- Department of Nuclear Medicine, Centre Hospitalier Régional et Universitaire de Nice, Hôpital Archet I
| | - Philippe Viau
- Department of Nuclear Medicine, Centre Hospitalier Régional et Universitaire de Nice, Hôpital Archet I
| | | | - Bernard Padovani
- Department of Radiology, Centre Hospitalier Régional et Universitaire de Nice, Hôpital Pasteur II, Nice, France
| | - Caroline Grangeaon
- Department of Nuclear Medicine, Centre Hospitalier Régional et Universitaire de Nice, Hôpital Archet I
| | - Micheline Razzouk-Cadet
- Department of Nuclear Medicine, Centre Hospitalier Régional et Universitaire de Nice, Hôpital Archet I
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Fat-Containing Hypermetabolic Masses on FDG PET/CT: A Spectrum of Benign and Malignant Conditions. AJR Am J Roentgenol 2016; 207:1095-1104. [PMID: 27490138 DOI: 10.2214/ajr.16.16066] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
OBJECTIVE This article focuses on identifying the imaging appearances of hypermetabolic fatty masses and masslike lesions on PET/CT and understanding the diagnostic challenges radiologists may face while interpreting findings of these lesions on PET/CT. This article provides an approach to aid in the diagnosis of these lesions and the appropriate management of patients. CONCLUSION Both malignant and benign fat-containing masses and masslike lesions can show hypermetabolic activity on PET/CT. Although the differential diagnosis is broad, clinical history, anatomic location, and knowledge of anatomic variants and imaging features can help radiologists avoid misinterpretation of benign fatty lesions as malignancy.
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García Latorre R, Rodríguez Díaz R, Barrios Barreto D, Ayala Carbonero A, García Gómez-Muriel MI, Gorospe Sarasúa L. Exogenous Lipoid Pneumonia in Laryngectomy Patients: Radiological Findings. Arch Bronconeumol 2014; 51:e36-9. [PMID: 25446870 DOI: 10.1016/j.arbres.2014.09.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2014] [Revised: 08/25/2014] [Accepted: 09/01/2014] [Indexed: 11/25/2022]
Abstract
Exogenous lipoid pneumonia (ELP) is a rare (incidence 1.0%-2.5%), often under-diagnosed disease, caused by the aspiration and accumulation of exogenous lipids within the pulmonary alveoli. Various cases have been described due to inhalation of lubricants via the nasal passages and oropharynx, aspiration of mineral oils in laxatives in patients with eating disorders, application of lip gloss, occupational exposure to liquid paraffin or mineral oils ("fire-eaters", industrial use in washing of machinery, automobile workshops, plastic paints, etc.) and application of Vaseline during the insertion of nasogastric tubes and in the care of tracheotomy patients. ELP usually presents radiologically as areas of low-attenuation peribronchial consolidation and ground glass opacities, with a predominantly bibasal distribution. We present 5 cases of long-standing laryngectomy patients diagnosed with ELP who admitted using Vaseline in their tracheal stoma care.
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Affiliation(s)
| | | | | | - Ana Ayala Carbonero
- Servicio de Radiodiagnóstico, Hospital Universitario Ramón y Cajal, Madrid, España
| | | | - Luis Gorospe Sarasúa
- Servicio de Radiodiagnóstico, Hospital Universitario Ramón y Cajal, Madrid, España
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10
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Exogenous lipoid pneumonia. Clinical and radiological manifestations. Respir Med 2011; 105:659-66. [DOI: 10.1016/j.rmed.2010.12.001] [Citation(s) in RCA: 89] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2010] [Revised: 11/28/2010] [Accepted: 12/01/2010] [Indexed: 11/23/2022]
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Lococo F, Cesario A, Porziella V, Mulè A, Petrone G, Margaritora S, Granone P. Idiopathic lipoid pneumonia successfully treated with prednisolone. Heart Lung 2011; 41:184-7. [PMID: 21419490 DOI: 10.1016/j.hrtlng.2011.01.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2010] [Revised: 01/10/2011] [Accepted: 01/11/2011] [Indexed: 10/18/2022]
Abstract
Lipoid pneumonia (LP) is a rare type of pneumonia that is radiologically characterized by lung infiltrates, although imaging alone may not be diagnostic. We describe an unusual 61-year-old patient with idiopathic LP presenting as a solitary pulmonary nodule mimicking lung cancer because of its rapid growth. After treatment with oral prednisone, a control chest radiogram indicated complete normalization of the radiologic features. This case shows that LP should be considered in the diagnostic assessment of any undefined pulmonary mass, after malignancy has been pathologically excluded.
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Affiliation(s)
- Filippo Lococo
- Department of Thoracic Surgery, Catholic University, Rome, Italy.
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13
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Benedetti E, Proietti A, Miccoli P, Basolo F, Ciancia E, Erba PA, Galimberti S, Orsitto E, Petrini M. Contrast-enhanced ultrasonography in nodular splenomegaly associated with type B Niemann-Pick disease: an atypical hemangioma enhancement pattern. J Ultrasound 2009; 12:85-92. [PMID: 23396497 DOI: 10.1016/j.jus.2009.06.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
INTRODUCTION Niemann-Pick disease (NPD) types A and B are lipid storage disorders. NPD type A is a fatal disorder of infancy. Type B is a non-neuronopathic form observed in children and adults. It is associated with enlargement of the liver, spleen, or both, and nodular splenomegaly may be detected with ultrasound. METHODS A 21-year-old female was admitted to the Emergency Room with fever, pharyngitis, and left upper quadrant abdominal pain. Labwork revealed anemia, thrombocytopenia, increased levels of AST, ALT, GGT, AF, LDH, triglycerides, and total cholesterol and low levels of HDL-cholesterol. PCR blood assays for CMV and EBV were both negative. Chest X-ray was unremarkable. Transabdominal B-mode ultrasound (US) revealed splenomegaly (long axis: >22 cm), an irregular subcapsular hypoechoic lesion in the superior pole that was consistent with splenic infarction, and multiple round highly echogenic nodes measuring 1-5 cm in diameter. Contrast-enhanced ultrasonography (CEUS) was performed using SonoVue(®) (Bracco). RESULTS The presence of a splenic infarction was confirmed. The nodular lesions showed arterial-phase enhancement with late parenchymal phase wash-out. (18)F-FDG-PET revealed splenic nodular uptake. Primary splenic lymphoma was suspected, and the patient underwent open splenectomy. The diagnosis was type B NPD with splenic hemangiomas. DISCUSSION CEUS confirmed the diagnosis and extent of splenic infarction, but the nodular atypical enhancement pattern together with nodular (18)F-FDG-PET uptake was misleading, suggesting as it did lymphoproliferative involvement of the spleen.
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Affiliation(s)
- E Benedetti
- Department of Oncology, Transplantation, and New Advances in Medicine, Hematology Division, University of Pisa, Italy ; Italian Society of Ultrasound in Medicine and Biology, School of Basic and Emergency Ultrasonography, Italy
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14
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15
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Paraffinoma and carcinoid tumorlet: a hitherto unreported association mimicking lung cancer. J Thorac Oncol 2007; 2:1052-3. [PMID: 17975499 DOI: 10.1097/jto.0b013e318158ef01] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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16
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Mokhlesi B, Angulo-Zereceda D, Yaghmai V. False-positive FDG-PET scan secondary to lipoid pneumonia mimicking a solid pulmonary nodule. Ann Nucl Med 2007; 21:411-4. [PMID: 17876555 DOI: 10.1007/s12149-007-0042-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2007] [Accepted: 04/10/2007] [Indexed: 12/19/2022]
Abstract
Fluoro-2-deoxy-D-glucose positron emission tomography (FDG-PET) scanning is useful in evaluating suspicious lesions of the lung. Our patient was a 65-year-old woman with a 45-pack-year smoking history who was referred for further evaluation because of a 3 cm x 3 cm solid lung nodule on computed tomography scan of the chest. FDG-PET scan revealed a standard uptake value of 3.2 suggestive of malignancy. The histology of the lung nodule was consistent with lipoid pneumonia, a benign condition frequently associated with inadvertent aspiration or inhalation of oily substances.
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Affiliation(s)
- Babak Mokhlesi
- The University of Chicago Hospitals, 5841 S. Maryland Avenue, MC 0999/Room L 11B, Chicago, IL 60637, USA.
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17
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Enomoto K, Hoshida Y, Hamada K, Okada T, Kubo T, Hatazawa J. F-18 FDG PET imaging of cervical tuberculous lymphadenitis. Clin Nucl Med 2007; 32:474-5. [PMID: 17515760 DOI: 10.1097/rlu.0b013e318053764a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Keisuke Enomoto
- Osaka University Graduate School of Medicine, Department of Nuclear Medicine and Tracer Kinetics, Osaka, Japan.
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Yoo IR, Park HJ, Hyun J, Chung YA, Sohn HS, Chung SK, Kin SH. Two cases of pulmonary paragonimiasis on FDG-PET CT imaging. Ann Nucl Med 2006; 20:311-5. [PMID: 16856575 DOI: 10.1007/bf02984648] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Positron emission tomography (PET) using 18F-fluorodeoxyglucose (FDG) is useful in cancer diagnosis owing to its sensitivity to the differences in glucose metabolic rate between benign and malignant diseases, especially in the lung. One pitfall in PET imaging of lung disease, however, is the overlap in metabolic rate of inflammatory and neoplastic entities. Paragonimiasis is a food-borne parasitic disease that causes the pulmonary and pleural inflammation. We present two cases of pulmonary paragonimiasis that showed high uptake suggestive of tumor on FDG-PET CT images, both confirmed on histopathology by visualization of Paragonimus westermani eggs in the involved tissues.
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Affiliation(s)
- Ie Ryung Yoo
- Department of Radiology, The Catholic University of Korea, College of Medicine, Kangnam St. Mary's Hospital, Seoul, Republic of Korea
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Davidoff S, Talwar A, Ali SK, Kim A, Margouleff D, Kaplan MH. Mycobacterium avium complex infection simulating lung cancer in AIDS patient after immune reconstitution with antiretroviral therapy. ACTA ACUST UNITED AC 2006. [DOI: 10.1016/j.rmedx.2005.10.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Abstract
The influence of MSCT on nodule detection and characterization will be discussed. The objective is to improve understanding of the clinical issues involved in nodule detection, characterization, and management in light of technological advances. Topics to be covered are noninvasive characterization techniques, such as morphologic and density inspection on CT, nodule enhancement techniques, CT-PET, temporal nodule size assessment, and computer aided diagnosis for both detection and characterization.
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Affiliation(s)
- Jane P Ko
- Thoracic Imaging Section, Department of Radiology, New York University Medical Center, New York 10016, USA.
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Abstract
The D-glucose analog 2-(fluorine-18)-fluoro-2-deoxy-D-glucose (FDG) is the most commonly used radionuclide in positron emission tomography (PET) of lung cancer. FDG-PET is a molecular imaging technique that images the preferential accumulation of FDG in malignant tissues with increased metabolism. Although FDG-PET is sensitive in the detection of lung cancer, FDG is not tumor specific and may accumulate in a variety of nonmalignant conditions. Occasional false-negative results may also occur. Whole body FDG-PET is a useful noninvasive technique to stage known or suspected non-small-cell lung cancer. The results allow more efficient use of invasive methods for histopathological staging. The combined use of CT and PET in dual imaging increases the number of patients with correctly staged non-small-cell lung cancer. CT/PET is also useful in the assessment of recurrent or residual disease. Future imaging agents are being developed which may allow more selective accumulation of radiopharmaceutical in malignant tissues.
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Affiliation(s)
- Matthew D Gilman
- Department of Radiology, Massachusetts General Hospital, Boston, MA 02114, USA
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