1
|
Gonçalves DVC, da Silva LNM, Guimarães JB, da Cruz IAN, Filho AGO. Imaging spectrum of atraumatic muscle disorders: a radiologist's guide. Skeletal Radiol 2024; 53:1449-1464. [PMID: 38520541 DOI: 10.1007/s00256-024-04659-7] [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: 12/06/2023] [Revised: 03/13/2024] [Accepted: 03/13/2024] [Indexed: 03/25/2024]
Abstract
Atraumatic muscle disorders comprise a very wide range of skeletal muscle diseases, including metabolic, inflammatory, autoimmune, infectious, ischemic, and neoplastic involvement of the muscles. Therefore, one must take clinical and laboratory data into consideration to elucidate the differential diagnoses, as well as the distribution of the muscle compromise along the body-whether isolated or distributed along the body in a symmetric or asymmetrical fashion. Assessment of muscular disorders often requires imaging investigation before image-guided biopsy or more invasive procedures; therefore, radiologists should understand the advantages and limitations of imaging methods for proper lesion evaluation and be aware of the imaging features of such disorders, thus contributing to proper decision-making and good patient outcomes. In this review, we propose a systematic approach for the assessment of muscle disorders based on their main imaging presentation, dividing them into patterns that can be easily recognized.
Collapse
Affiliation(s)
| | - Lucas N M da Silva
- Department of Musculoskeletal Radiology, Fleury Medicina E Saúde, Sao Paulo, Brazil
| | | | - Isabela A N da Cruz
- Department of Musculoskeletal Radiology, Fleury Medicina E Saúde, Sao Paulo, Brazil
| | | |
Collapse
|
2
|
Lv PP, Xu XY, Han YM, Ma Y, Li SY. Non-negligible ultrasonographic findings in sarcoid myositis: A case series and literature review. JOURNAL OF CLINICAL ULTRASOUND : JCU 2024. [PMID: 39041232 DOI: 10.1002/jcu.23759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 05/23/2024] [Accepted: 06/24/2024] [Indexed: 07/24/2024]
Abstract
Sarcoid myositis is a rare and often debilitating extrapulmonary manifestation of sarcoidosis that can be difficult to recognize without a prior sarcoidosis diagnosis. Sarcoidosis with muscle nodules or masses as the first symptom is the least common form, occurring in approximately 0.5%-2.3% of cases. This article presents four middle-aged female patients who initially sought medical attention for a lower limb mass. Ultrasound examinations revealed consistent characteristic changes indicative of myositis. All patients underwent ultrasound-guided muscle biopsy and were diagnosed with sarcoidosis. Therefore, ultrasonography plays a pivotal role as the primary diagnostic tool for the early detection of sarcoid myositis.
Collapse
Affiliation(s)
- Pan-Pan Lv
- Department of Ultrasound in Medicine, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Xia-Yan Xu
- Department of Rheumatology in Medicine, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yong-Mei Han
- Department of Rheumatology in Medicine, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yan Ma
- Department of Pathology in Medicine, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Shi-Yan Li
- Department of Ultrasound in Medicine, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| |
Collapse
|
3
|
Suzuki D, Uchimura F, Nishida A. A Focal Chronic Myopathic Form of Muscular Sarcoidosis. Mayo Clin Proc 2024; 99:1030-1031. [PMID: 38762816 DOI: 10.1016/j.mayocp.2024.02.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 02/06/2024] [Accepted: 02/14/2024] [Indexed: 05/20/2024]
Affiliation(s)
- Daisuke Suzuki
- Departments of Neurology, Nihonkai General Hospital, Sakata, Yamagata, Japan.
| | | | - Akiko Nishida
- Pathology, Nihonkai General Hospital, Sakata, Yamagata, Japan
| |
Collapse
|
4
|
Lequain H, Streichenberger N, Gallay L, Gerfaud-Valentin M, Fenouil T, Bonjour M, Roux KL, Jamilloux Y, Leblanc P, Sève P. Granulomatous myositis: characteristics and outcome from a monocentric retrospective cohort study. Neuromuscul Disord 2024; 42:5-13. [PMID: 39059057 DOI: 10.1016/j.nmd.2024.06.007] [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: 03/14/2024] [Revised: 06/22/2024] [Accepted: 06/25/2024] [Indexed: 07/28/2024]
Abstract
Granulomatous myositis is a clinical-pathological entity, which has been rarely reported, mostly described in sarcoidosis. Currently, no clear and simple prognostic factor has been identified to predict granulomatous myositis evolution. The clinical, anatomopathological, imaging, and biological characteristics of 26 patients with granulomatous myositis were retrospectively collected to describe clinical presentation and outcomes of this condition. Twenty-six patients with granulomatous myositis were included (14 males) with a median age of symptom onset of 65 years. 54 % of patients presented a severe form of the disease defined as a Rankin score ≥2 at last follow-up visit or a progressive form of the disease (no improvement under treatment). Etiology were sarcoidosis (n = 14), inclusion body myositis (n = 4), autoimmune disease (n = 1), hematological malignancy (n = 1), and idiopathic (n = 6). Distal deficit and amyotrophy were more frequent among those with a severe disease. Corticosteroids led to improvement in 75 % of cases, but 66 % of responders relapsed. Methotrexate appeared as a promising second line therapy with clinical improvement in 50 % of patients, and no relapse in responders. Granulomatous myositis is often a severe and difficult-to-treat disease in which patients frequently progress towards severe disability. The presence of muscle atrophy and distal weakness appears to be frequently associated with a severe form of the disease.
Collapse
Affiliation(s)
- Hippolyte Lequain
- Department of Internal Medicine, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, Université Claude Bernard-Lyon 1, Lyon, France
| | - Nathalie Streichenberger
- Department of Pathology, Hôpital Pierre Wertheimer, Hospices Civils de Lyon, Université Claude Bernard-Lyon1, Lyon, France; Faculté de Médecine Rockefeller, Institut NeuroMyoGène INMG-PGNM, Physiopathologie et Génétique du Neurone et du Muscle, UMR5261, INSERM U1315, Université Claude Bernard-Lyon1, Lyon, France
| | - Laure Gallay
- Department of Internal Medicine, Hôpital Édouard Herriot, Hospices Civils de Lyon, Lyon, France
| | - Mathieu Gerfaud-Valentin
- Department of Internal Medicine, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, Université Claude Bernard-Lyon 1, Lyon, France
| | - Tanguy Fenouil
- Department of Pathology, Hôpital Pierre Wertheimer, Hospices Civils de Lyon, Université Claude Bernard-Lyon1, Lyon, France
| | - Maxime Bonjour
- Service de Biostatistique, Hospices Civils de Lyon, Université Claude Bernard-Lyon 1, Lyon, France
| | - Karine Le Roux
- Department of Internal Medicine, Centre hospitalier Métropole Savoie, Aix-les-Bains, France
| | - Yvan Jamilloux
- Department of Internal Medicine, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, Université Claude Bernard-Lyon 1, Lyon, France
| | - Pascal Leblanc
- Faculté de Médecine Rockefeller, Institut NeuroMyoGène INMG-PGNM, Physiopathologie et Génétique du Neurone et du Muscle, UMR5261, INSERM U1315, Université Claude Bernard-Lyon1, Lyon, France
| | - Pascal Sève
- Department of Internal Medicine, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, Université Claude Bernard-Lyon 1, Lyon, France; Research on Healthcare Performance (RESHAPE), U129-INSERM, Université Claude Bernard-Lyon 1, Lyon, France.
| |
Collapse
|
5
|
Kidd DP. Neurosarcoidosis. J Neurol 2024; 271:1047-1055. [PMID: 37917231 DOI: 10.1007/s00415-023-12046-w] [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: 09/12/2023] [Accepted: 10/03/2023] [Indexed: 11/04/2023]
Abstract
Sarcoidosis affects the nervous system in 5% of cases. 60% of cases involve the cranial and peripheral nerves, the remainder the central nervous system, in which a leptomeningitis, a pachymeningitis and a vasculitis may arise. Stroke and cerebral haemorrhage may occur, and certain infections in the brain are more likely with sarcoidosis. Patients respond well to treatment but oftentimes with residual neurological impairments which may be severe. A greater understanding of the disease and the need for early treatment and use of biological therapies have improved treatment outcome in recent times.
Collapse
Affiliation(s)
- Desmond P Kidd
- Formerly of the Centre for Neurosarcoidosis and WASOG Centre of Excellence, Neuroimmunology Unit, Institute of Immunity and Transplantation, Royal Free Hospital, London, NW3 2QG, England.
| |
Collapse
|
6
|
Sureja NP, Swain M, Murari SB, Ravuri P. An unusual case of sarcoidosis presenting as calf pain. SARCOIDOSIS, VASCULITIS, AND DIFFUSE LUNG DISEASES : OFFICIAL JOURNAL OF WASOG 2023; 40:e2023056. [PMID: 38126505 DOI: 10.36141/svdld.v40i4.14004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 11/20/2023] [Indexed: 12/23/2023]
Abstract
Sarcoidosis is a multisystem chronic inflammatory disease predominantly affecting the lungs. Myositis as a presenting manifestation of sarcoidosis is extremely uncommon and seldom reported. Here we report a 20-year-old male who presented with bilateral calf pain for six months. On evaluation magnetic resonance imaging showed features of myositis, and muscle biopsy was suggestive of sarcoidosis with granulomatous vasculitis. Positron emission tomography-computed tomography scan revealed involvement of spleen in addition to the muscles. Patient was managed with corticosteroids and azathioprine, and showed good treatment response.
Collapse
Affiliation(s)
- Nayan Patel Sureja
- a:1:{s:5:"en_US";s:96:"Consultant, Department of Rheumatology and Clinical Immunology, Star Hospitals, Hyderabad, India";}.
| | - Meenakshi Swain
- Department of Pathology, Apollo Hospitals, Hyderabad, India.
| | | | - Power Ravuri
- Department of Radiology and Imaging, Star Hospitals, Hyderabad, India.
| |
Collapse
|
7
|
Lequain H, Dégletagne C, Streichenberger N, Valantin J, Simonet T, Schaeffer L, Sève P, Leblanc P. Spatial Transcriptomics Reveals Signatures of Histopathological Changes in Muscular Sarcoidosis. Cells 2023; 12:2747. [PMID: 38067175 PMCID: PMC10706822 DOI: 10.3390/cells12232747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 11/25/2023] [Accepted: 11/27/2023] [Indexed: 12/18/2023] Open
Abstract
Sarcoidosis is a multisystemic disease characterized by non-caseating granuloma infiltrating various organs. The form with symptomatic muscular involvement is called muscular sarcoidosis. The impact of immune cells composing the granuloma on the skeletal muscle is misunderstood. Here, we investigated the granuloma-skeletal muscle interactions through spatial transcriptomics on two patients affected by muscular sarcoidosis. Five major transcriptomic clusters corresponding to perigranuloma, granuloma, and three successive muscle tissue areas (proximal, intermediate, and distal) around the granuloma were identified. Analyses revealed upregulated pathways in the granuloma corresponding to the activation of T-lymphocytes and monocytes/macrophages cytokines, the upregulation of extracellular matrix signatures, and the induction of the TGF-β signaling in the perigranuloma. A comparison between the proximal and distal muscles to the granuloma revealed an inverse correlation between the distance to the granuloma and the upregulation of cellular response to interferon-γ/α, TNF-α, IL-1,4,6, fibroblast proliferation, epithelial to mesenchymal cell transition, and the downregulation of muscle gene expression. These data shed light on the intercommunications between granulomas and the muscle tissue and provide pathophysiological mechanisms by showing that granuloma immune cells have a direct impact on proximal muscle tissue by promoting its progressive replacement by fibrosis via the expression of pro-inflammatory and profibrosing signatures. These data could possibly explain the evolution towards a state of disability for some patients.
Collapse
Affiliation(s)
- Hippolyte Lequain
- Département de Médecine Interne, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, 69004 Lyon, France;
- Institut NeuroMyoGène INMG-PGNM, Physiopathologie et Génétique du Neurone et du Muscle, UMR5261, Inserm U1315, Faculté de Médecine Rockefeller, Université Claude Bernard UCBL-Lyon 1, 69008 Lyon, France; (N.S.); (T.S.)
| | - Cyril Dégletagne
- CRCL Core Facilities, Centre de Recherche en Cancérologie de Lyon (CRCL) INSERM U1052-CNRS UMR5286, Université de Lyon, Université Claude Bernard Lyon1, Centre Léon Bérard, 69008 Lyon, France; (C.D.); (J.V.)
| | - Nathalie Streichenberger
- Institut NeuroMyoGène INMG-PGNM, Physiopathologie et Génétique du Neurone et du Muscle, UMR5261, Inserm U1315, Faculté de Médecine Rockefeller, Université Claude Bernard UCBL-Lyon 1, 69008 Lyon, France; (N.S.); (T.S.)
- Service d’Anatomopathologie, Centre de Biologie et Pathologie Est (CBPE), Hospices Civils de Lyon, 69500 Bron, France
| | - Julie Valantin
- CRCL Core Facilities, Centre de Recherche en Cancérologie de Lyon (CRCL) INSERM U1052-CNRS UMR5286, Université de Lyon, Université Claude Bernard Lyon1, Centre Léon Bérard, 69008 Lyon, France; (C.D.); (J.V.)
| | - Thomas Simonet
- Institut NeuroMyoGène INMG-PGNM, Physiopathologie et Génétique du Neurone et du Muscle, UMR5261, Inserm U1315, Faculté de Médecine Rockefeller, Université Claude Bernard UCBL-Lyon 1, 69008 Lyon, France; (N.S.); (T.S.)
| | - Laurent Schaeffer
- Institut NeuroMyoGène INMG-PGNM, Physiopathologie et Génétique du Neurone et du Muscle, UMR5261, Inserm U1315, Faculté de Médecine Rockefeller, Université Claude Bernard UCBL-Lyon 1, 69008 Lyon, France; (N.S.); (T.S.)
- Centre de Biotechnologie Cellulaire, CHU de Lyon—HCL Groupement Est, 69677 Bron, France
| | - Pascal Sève
- Département de Médecine Interne, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, 69004 Lyon, France;
- Pôle IMER, HESPER EA 7425, 69002 Lyon, France
| | - Pascal Leblanc
- Institut NeuroMyoGène INMG-PGNM, Physiopathologie et Génétique du Neurone et du Muscle, UMR5261, Inserm U1315, Faculté de Médecine Rockefeller, Université Claude Bernard UCBL-Lyon 1, 69008 Lyon, France; (N.S.); (T.S.)
| |
Collapse
|
8
|
Chompoopong P, Skolka MP, Ernste FC, Milone M, Liewluck T. Symptomatic myopathies in sarcoidosis: disease spectrum and myxovirus resistance protein A expression. Rheumatology (Oxford) 2023; 62:2556-2562. [PMID: 36440911 DOI: 10.1093/rheumatology/keac668] [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: 08/10/2022] [Accepted: 11/19/2022] [Indexed: 07/20/2023] Open
Abstract
OBJECTIVES Symptomatic myopathy in sarcoidosis patients is not always due to sarcoid myopathy (ScM). We investigated the clinical and pathological spectrum including myxovirus resistance protein A (MxA) expression among sarcoidosis patients. METHODS We reviewed the Mayo Clinic database (May 1980-December 2020) to identify sarcoidosis patients with myopathic symptoms and pathological evidence of myopathy. RESULTS Among 5885 sarcoidosis patients, 21 had symptomatic myopathy. Eight carried a diagnosis of sarcoidosis 5.5 years (median) prior to myopathy onset. Eleven patients had ScM. The remaining had non-sarcoid myopathies (five IBM, one immune-mediated necrotizing myopathy, one non-specific myositis, two non-specific myopathy and one steroid myopathy). Estimated frequency of IBM is 85 per 100 000 sarcoidosis patients. The following features were associated with non-sarcoid myopathies (P < 0.05): (i) predominant finger flexor and quadriceps weakness, (ii) modified Rankin scale (mRS) >2 at time of diagnosis, (iii) creatine kinase >500 U/l, and (iv) absence of intramuscular granulomas. Sarcoplasmic MxA expression was observed in scattered myofibres in three patients, two of whom were tested for DM-specific autoantibodies and were negative. Immunosuppressive therapy led to improvement in mRS ≥1 in 5/10 ScM, none of the five IBM, and 3/3 remaining patients with non-sarcoid myopathies. DISCUSSION Symptomatic myopathy occurred in 0.36% of sarcoidosis. IBM was the second most common cause of myopathies after ScM. Frequency of IBM in sarcoidosis is higher than in the general population. Recognition of features suggestive of alternative aetiologies can guide proper treatment. Our findings of abnormal MxA expression warrant a larger study.
Collapse
Affiliation(s)
- Pitcha Chompoopong
- Division of Neuromuscular Medicine, Department of Neurology, Mayo Clinic, Rochester, MN, USA
| | - Michael P Skolka
- Division of Neuromuscular Medicine, Department of Neurology, Mayo Clinic, Rochester, MN, USA
| | - Floranne C Ernste
- Division of Rheumatology, Department of Medicine, Mayo Clinic, Rochester, MN, USA
| | - Margherita Milone
- Division of Neuromuscular Medicine, Department of Neurology, Mayo Clinic, Rochester, MN, USA
| | - Teerin Liewluck
- Division of Neuromuscular Medicine, Department of Neurology, Mayo Clinic, Rochester, MN, USA
| |
Collapse
|
9
|
Chompoopong P, Liewluck T. Granulomatous myopathy: Sarcoidosis and beyond. Muscle Nerve 2023; 67:193-203. [PMID: 36352751 DOI: 10.1002/mus.27741] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 10/09/2022] [Accepted: 10/11/2022] [Indexed: 11/11/2022]
Abstract
Non-necrotizing granulomatous inflammation is a rare but easily recognized histopathological finding in skeletal muscle biopsy. A limited number of diseases are known to be associated with non-necrotizing granulomatous myopathy. Once identified, a careful evaluation for evidence of extramuscular granulomatosis and other signs suggestive of sarcoidosis is warranted as about half of the patients have sarcoid myopathy. In addition, the presence of granulomatous myopathy should trigger a search for clinical and pathological clues of inclusion body myositis (IBM), which accounts for most of the remaining patients and can coexist with sarcoidosis. Recognizing the features of IBM in patients with granulomatous myopathy can potentially spare the patients from unnecessary exposure to immunosuppressive therapies. In patients whose granulomatous myopathy remain unexplained, further investigations should aim at identifying myasthenia gravis and other autoimmune disorders, especially those known to cause granulomatous inflammation in other organs. Laboratory investigations should include acetylcholine receptor, antimitochondrial, antineutrophil cytoplasmic, thyroglobulin, and thyroid peroxidase autoantibodies. In the appropriate clinical context, exposure to immune checkpoint inhibitors and chronic graft-vs-host disease can be causes of granulomatous myopathy. In cases of unexplained granulomatous myopathy, natural killer/T-cell lymphoma should be considered and careful histopathological examination for atypical cells and appropriate immunostaining is crucial. Identifying the etiology of granulomatous myopathy in each patient can guide appropriate treatment.
Collapse
|
10
|
Garret M, Pestronk A. Sarcoidosis, granulomas and myopathy syndromes: A clinical-pathology review. J Neuroimmunol 2022; 373:577975. [PMID: 36228383 DOI: 10.1016/j.jneuroim.2022.577975] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Revised: 09/24/2022] [Accepted: 09/29/2022] [Indexed: 11/29/2022]
Abstract
Muscle involvement in sarcoidosis is common by pathologic analysis, but symptomatic disorders are less frequent. Sarcoidosis-related muscle pathology includes non-caseating granulomas, muscle fiber changes that are diffuse or anatomically related to granulomas, and perimysial connective tissue with histiocyte-associated damage. The mechanisms by which granulomas form, enlarge and damage muscle tissues are incompletely understood. Sarcoidosis-related clinical syndromes with muscle involvement include: chronic myopathies with proximal weakness; nodular disorders; subacute onset disorders involving proximal or eye muscles; myalgia or fatigue syndromes; and, possibly, inclusion body myositis-like disorders. Corticosteroid treatment may benefit some syndromes, but clinical trials are necessary.
Collapse
Affiliation(s)
- Mark Garret
- Departments of Neurology, Washington University School of Medicine, Saint Louis, MO, USA
| | - Alan Pestronk
- Departments of Neurology, Washington University School of Medicine, Saint Louis, MO, USA; Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO, USA.
| |
Collapse
|
11
|
Approche par technique de transcriptomique spatiale pour élucider l’impact des granulomes sur le tissu musculaire dans les myosites sarcoïdosiques. Rev Med Interne 2022. [DOI: 10.1016/j.revmed.2022.10.096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
|
12
|
Kidd DP. Management of neurosarcoidosis. J Neuroimmunol 2022; 372:577958. [PMID: 36162337 DOI: 10.1016/j.jneuroim.2022.577958] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Revised: 08/09/2022] [Accepted: 08/26/2022] [Indexed: 12/31/2022]
Abstract
This is a brief and purposefully practical approach to the therapeutic and rehabilitative management of patients affected by neurological complications of systemic sarcoidosis. The review notes the drugs used and their monitoring, and their role in the series of clinical subgroups identified to form the condition. Treatment guidelines for individual clinical subtypes of the disorder are provided, and the importance of rehabilitative measures and lifestyle changes are emphasised.
Collapse
Affiliation(s)
- Desmond P Kidd
- Centre for Neurosarcoidosis, Neuroimmunology unit, Royal Free Hospital, London NW3 1PF, United Kingdom.
| |
Collapse
|
13
|
Nelke C, Kleefeld F, Preusse C, Ruck T, Stenzel W. Inclusion body myositis and associated diseases: an argument for shared immune pathologies. Acta Neuropathol Commun 2022; 10:84. [PMID: 35659120 PMCID: PMC9164382 DOI: 10.1186/s40478-022-01389-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 05/25/2022] [Indexed: 02/04/2023] Open
Abstract
Inclusion body myositis (IBM) is the most prevalent idiopathic inflammatory myopathy (IIM) affecting older adults. The pathogenic hallmark of IBM is chronic inflammation of skeletal muscle. At present, we do not classify IBM into different sub-entities, with the exception perhaps being the presence or absence of the anti-cN-1A-antibody. In contrast to other IIM, IBM is characterized by a chronic and progressive disease course. Here, we discuss the pathophysiological framework of IBM and highlight the seemingly prototypical situations where IBM occurs in the context of other diseases. In this context, understanding common immune pathways might provide insight into the pathogenesis of IBM. Indeed, IBM is associated with a distinct set of conditions, such as human immunodeficiency virus (HIV) or hepatitis C-two conditions associated with premature immune cell exhaustion. Further, the pathomorphology of IBM is reminiscent of other muscle diseases, notably HIV-associated myositis or granulomatous myositis. Distinct immune pathways are likely to drive these commonalities and senescence of the CD8+ T cell compartment is discussed as a possible mechanism of pathogenesis. Future effort directed at understanding the co-occurrence of IBM and associated diseases could prove valuable to better understand the enigmatic IBM pathophysiology.
Collapse
Affiliation(s)
- Christopher Nelke
- Department of Neurology, Medical Faculty, Heinrich Heine University Düsseldorf, 40225, Düsseldorf, Germany
| | - Felix Kleefeld
- Department of Neurology, Charité-Universitätsmedizin Berlin, Berlin, Germany
- Department of Neuropathology, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Corinna Preusse
- Department of Neuropathology, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
- Department of Neurology With Institute for Translational Neurology, University Hospital Münster, 48149, Münster, Germany
| | - Tobias Ruck
- Department of Neurology, Medical Faculty, Heinrich Heine University Düsseldorf, 40225, Düsseldorf, Germany
| | - Werner Stenzel
- Department of Neuropathology, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany.
| |
Collapse
|
14
|
Clinical characteristics and outcome in muscular sarcoidosis: a retrospective cohort study and literature review. Neuromuscul Disord 2022; 32:557-563. [PMID: 35654706 DOI: 10.1016/j.nmd.2022.05.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 05/16/2022] [Accepted: 05/18/2022] [Indexed: 11/23/2022]
Abstract
We evaluated the clinical features and treatment response of patients with muscular sarcoidosis. A retrospective cohort of 12 patients showed muscle weakness in 11 and myalgia in seven. One had focal myositis. Four had a negative medical history for sarcoidosis. Muscle imaging showed muscle edema in all and replacement of muscle tissue by fat in half of patients. Muscle biopsy showed non-caseating granulomas in six of nine patients and inflammation without granulomas in three. None of the muscle biopsies showed features of inclusion body myositis. Imaging in three patients without muscle biopsy showed focal intramuscular masses or a 'tiger man' appearance typical for muscular sarcoidosis. Treatment consisted of glucocorticoids in 11, additional methotrexate or azathioprine in seven and infliximab in two patients. Half of the patients had symptoms leading to substantial disability (modified Rankin scale score >1) at last follow-up. A literature review of articles describing more than one muscular sarcoidosis patient published in the last 25 years identified 153 additional patients. We found muscular sarcoidosis to be a rare and often disabling disease which may be recognized by typical muscle imaging characteristics and add focal myositis to the muscular phenotypes of sarcoidosis.
Collapse
|
15
|
Milojevic IG, Sobic-Saranovic D, Milojevic B, Artiko VM. Muscular sarcoidosis in the eyes of 18 F-FDG PET/CT. JOURNAL OF CLINICAL ULTRASOUND : JCU 2022; 50:399-404. [PMID: 34951698 DOI: 10.1002/jcu.23120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Accepted: 11/24/2021] [Indexed: 06/14/2023]
Abstract
PURPOSE The aim of this study was to determine the frequency, symptoms, activity and pattern of muscle sarcoidosis, correlation with laboratory parameters, and to assess its therapy response with 18 F-FDG PET/CT. METHODS Study included 90 patients with biopsy confirmed sarcoidosis and symptoms/biochemical/imaging findings suggestive of active disease. The exclusion criteria were: presence of cancer or other diseases that resemble sarcoidosis on PET/CT (Wegener syndrome, tuberculosis, aspergillosis), and the glucose level being greater than 11 mmol/L. All patients were screened for muscle sarcoidosis with 18 F-FDG PET/CT examination. Follow-up examination was done 1 year after the baseline in order to evaluate therapy response. RESULTS Disease was very rare and present in only 7/90 patients. Most of the patients had polysymptomatic disease, while muscle pain was less frequent, present only in one-third of the patients. The disease was usually present in the lower limbs, upper limbs, and skeletal striated muscles. The most common pattern of disease was nodular. Disease activity estimated with SUVmax was not in correlation with the ACE findings, creatine kinase, and aldolase levels (p > 0.05). Follow-up PET/CT revealed complete remission in one patient and partial remission in two. CONCLUSION 18 F-FDG PET/CT can be useful in asymptomatic young patients with nodular pattern of disease, who have easily relapsing form of disease. It can help in further management of these patients and can affect prognosis of the disease, since most of the laboratory parameters in this entity are within normal limits.
Collapse
Affiliation(s)
- Isidora Grozdic Milojevic
- Center for Nuclear Medicine, Clinical Center of Serbia, Belgrade, Serbia
- Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Dragana Sobic-Saranovic
- Center for Nuclear Medicine, Clinical Center of Serbia, Belgrade, Serbia
- Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Bogomir Milojevic
- Faculty of Medicine, University of Belgrade, Belgrade, Serbia
- Clinic of Urology, Clinical Center of Serbia, Belgrade, Serbia
| | - Vera M Artiko
- Center for Nuclear Medicine, Clinical Center of Serbia, Belgrade, Serbia
- Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| |
Collapse
|
16
|
Hasbani GE, Uthman I, Jawad AS. Musculoskeletal Manifestations of Sarcoidosis. CLINICAL MEDICINE INSIGHTS. ARTHRITIS AND MUSCULOSKELETAL DISORDERS 2022; 15:11795441211072475. [PMID: 35185345 PMCID: PMC8854226 DOI: 10.1177/11795441211072475] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Accepted: 12/09/2021] [Indexed: 01/12/2023]
Abstract
Since its initial description in the late 19th century, sarcoidosis has been extensively studied. Although the general mechanism of immune activation is known, many details especially in the context of disease associations are still missing. One of such associations is the musculoskeletal complications that are widely variable in terms of presentation and response to treatment. Sarcoidosis can involve the joints leading to acute and, less commonly chronic, arthritis. While acute arthritis is mostly self-resolving in nature, chronic arthritis may lead to deformity and destruction of the joint. Sarcoidosis can also involve the muscles, leading to different pathologies primarily categorized according to the clinical presentation, despite the efforts to find a new classification based on imaging, histological, and clinical findings. The bones can be directly and indirectly affected. Different types of bone lesions have been described, although around half of these patients remain asymptomatic. Osteoporosis, increased risk of fractures, hypercalcemia, and hypercalciuria are examples of the indirect effect of sarcoidosis on the bones, possibly contributed to elevated levels of calcitriol. Nevertheless, sarcoidosis can be associated with small-vessel, medium-vessel, and large vessel vasculitis, although it is frequently difficult to differentiate between the co-existence of a pure vasculitis and sarcoidosis and sarcoid vasculitis.
Collapse
Affiliation(s)
- Georges El Hasbani
- Department of Internal Medicine, St. Vincent's Medical Center, Bridgeport, CT, USA
| | - Imad Uthman
- Department of Internal Medicine, American University of Beirut Medical Center, Beirut, Lebanon
| | - Ali Sm Jawad
- Department of Rheumatology, The Royal London Hospital, London, UK
| |
Collapse
|
17
|
Bradshaw MJ, Pawate S, Koth LL, Cho TA, Gelfand JM. Neurosarcoidosis: Pathophysiology, Diagnosis, and Treatment. NEUROLOGY-NEUROIMMUNOLOGY & NEUROINFLAMMATION 2021; 8:8/6/e1084. [PMID: 34607912 PMCID: PMC8495503 DOI: 10.1212/nxi.0000000000001084] [Citation(s) in RCA: 74] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Accepted: 07/12/2021] [Indexed: 12/23/2022]
Abstract
Although often regarded as a protean illness with myriad clinical and imaging manifestations, neurosarcoidosis typically presents as recognizable syndromes that can be approached in a rational, systematic fashion. Understanding of neurosarcoidosis has progressed significantly in recent years, including updated diagnostic criteria and advances in treatment. The diagnosis of neurosarcoidosis is established by the clinical syndrome, imaging and histopathological findings, and exclusion of other causes. Mounting evidence supports the use of tumor necrosis factor inhibitors as an important addition to the therapeutic armamentarium, along with glucocorticoids and steroid-sparing cytotoxic immunosuppressants. In this narrative review, we summarize recent advances in the diagnosis and treatment of neurosarcoidosis.
Collapse
Affiliation(s)
- Michael J Bradshaw
- From the University of Washington and Billings Clinic, (M.J.B.); Vanderbilt University Medical Center (S.P.), Nashville, TN; Division of Pulmonary and Critical Care (L.L.K.), Department of Medicine, University of California, San Francisco; Division of Pulmonary and Critical Care, Department of Medicine; Univeristy of Iowa (T.A.C.), Iowa City; Department of Neurology (J.M.G.), Division of Neuroimmunology and Glial Biology, University of California, San Francisco.
| | - Siddharama Pawate
- From the University of Washington and Billings Clinic, (M.J.B.); Vanderbilt University Medical Center (S.P.), Nashville, TN; Division of Pulmonary and Critical Care (L.L.K.), Department of Medicine, University of California, San Francisco; Division of Pulmonary and Critical Care, Department of Medicine; Univeristy of Iowa (T.A.C.), Iowa City; Department of Neurology (J.M.G.), Division of Neuroimmunology and Glial Biology, University of California, San Francisco
| | - Laura L Koth
- From the University of Washington and Billings Clinic, (M.J.B.); Vanderbilt University Medical Center (S.P.), Nashville, TN; Division of Pulmonary and Critical Care (L.L.K.), Department of Medicine, University of California, San Francisco; Division of Pulmonary and Critical Care, Department of Medicine; Univeristy of Iowa (T.A.C.), Iowa City; Department of Neurology (J.M.G.), Division of Neuroimmunology and Glial Biology, University of California, San Francisco
| | - Tracey A Cho
- From the University of Washington and Billings Clinic, (M.J.B.); Vanderbilt University Medical Center (S.P.), Nashville, TN; Division of Pulmonary and Critical Care (L.L.K.), Department of Medicine, University of California, San Francisco; Division of Pulmonary and Critical Care, Department of Medicine; Univeristy of Iowa (T.A.C.), Iowa City; Department of Neurology (J.M.G.), Division of Neuroimmunology and Glial Biology, University of California, San Francisco
| | - Jeffrey M Gelfand
- From the University of Washington and Billings Clinic, (M.J.B.); Vanderbilt University Medical Center (S.P.), Nashville, TN; Division of Pulmonary and Critical Care (L.L.K.), Department of Medicine, University of California, San Francisco; Division of Pulmonary and Critical Care, Department of Medicine; Univeristy of Iowa (T.A.C.), Iowa City; Department of Neurology (J.M.G.), Division of Neuroimmunology and Glial Biology, University of California, San Francisco
| |
Collapse
|
18
|
How to Tackle the Diagnosis and Treatment in the Diverse Scenarios of Extrapulmonary Sarcoidosis. Adv Ther 2021; 38:4605-4627. [PMID: 34296400 PMCID: PMC8408061 DOI: 10.1007/s12325-021-01832-5] [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: 03/18/2021] [Accepted: 06/17/2021] [Indexed: 11/19/2022]
Abstract
Extrapulmonary sarcoidosis occurs in 30–50% of cases of sarcoidosis, most often in association with pulmonary involvement, and virtually any organ can be involved. Its incidence depends according to the organs considered, clinical phenotype, and history of sarcoidosis, but also on epidemiological factors like age, sex, geographic ancestry, and socio-professional factors. The presentation, symptomatology, organ dysfunction, severity, and lethal risk vary from and to patient even at the level of the same organ. The presentation may be specific or not, and its occurrence is at variable times in the history of sarcoidosis from initial to delayed. There are schematically two types of presentation, one when pulmonary sarcoidosis is first discovered, the problem is then to detect extrapulmonary localizations and to assess their link with sarcoidosis, while the other presentation is when extrapulmonary manifestations are indicative of the disease with the need to promptly make the diagnosis of sarcoidosis. To improve diagnosis accuracy, extrapulmonary manifestations need to be known and a medical strategy is warranted to avoid both under- and over-diagnosis. An accurate estimation of impairment and risk linked to extrapulmonary sarcoidosis is essential to offer the best treatment. Most frequent extrapulmonary localizations are skin lesions, arthritis, uveitis, peripheral lymphadenopathy, and hepatic involvement. Potentially severe involvement may stem from the heart, nervous system, kidney, eye and larynx. There is a lack of randomized trials to support recommendations which are often derived from what is known for lung sarcoidosis and from the natural history of the disease at the level of the respective organ. The treatment needs to be holistic and personalized, taking into account not only extrapulmonary localizations but also lung involvement, parasarcoidosis syndrome if any, symptoms, quality of life, medical history, drugs contra-indications, and potential adverse events and patient preferences. The treatment is based on the use of anti-sarcoidosis drugs, on treatments related to organ dysfunction and supportive treatments. Multidisciplinary discussions and referral to sarcoidosis centers of excellence may be helpful for difficult diagnosis and treatment decisions.
Collapse
|
19
|
A Comprehensive Review of Sarcoidosis Treatment for Pulmonologists. Pulm Ther 2021; 7:325-344. [PMID: 34143362 PMCID: PMC8589889 DOI: 10.1007/s41030-021-00160-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Accepted: 05/17/2021] [Indexed: 12/20/2022] Open
Abstract
Due to frequent lung involvement, the pulmonologist is often the reference physician for management of sarcoidosis, a systemic granulomatous disease with a heterogeneous course. Treatment of sarcoidosis raises some issues. The first challenge is to select patients who are likely to benefit from treatment, as sarcoidosis may be self-limiting and remit spontaneously, in which case treatment can be postponed and possibly avoided without any significant impact on quality of life, organ damage or prognosis. Systemic glucocorticosteroids (GCs) are the drug of first choice for sarcoidosis. When GCs are started, there is a > 50% chance of long-term treatment. Prolonged use of prednisone at > 10 mg/day or equivalent is often associated with severe side effects. In these and refractory cases, steroid-sparing options are advised. Antimetabolites, such as methotrexate, are the second-choice therapy. Biologics, such as anti-TNF and especially infliximab, are third-choice drugs. The three treatments can be used concomitantly. Regardless of whether treatment is started, the clinician needs to organize regular follow-up to monitor remissions, flares, progression, complications, toxicity and relapses in order to promptly adjust the drugs used.
Collapse
|
20
|
Patil S, Hilliard CA, Arakane M, Koppisetti Jenigiri S, Field EH, Singh N. Musculoskeletal sarcoidosis: A single center experience over 15 years. Int J Rheum Dis 2021; 24:533-541. [PMID: 33559378 DOI: 10.1111/1756-185x.14068] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 12/30/2020] [Accepted: 01/07/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND Musculoskeletal (MSK) sarcoidosis presents with a variety of clinical phenotypes. Four subtypes of MSK sarcoidosis have been identified to date: Lofgren syndrome, chronic sarcoid arthritis, osseous sarcoidosis, sarcoid myopathy. Each subtype has been reported with varying incidence mainly due to lack of universal classification criteria. METHODS We performed a retrospective chart review of patients with MSK sarcoidosis at a single academic center between January 2000 and December 2014. Descriptive statistics were used to describe the proportion of patients with sarcoidosis who had the 4 MSK syndromes of interest, demographic characteristics and therapeutic agents used. RESULTS A cohort of 58 patients with MSK manifestations were identified among 1016 patients with sarcoidosis. Frequency of subtypes include: Lofgren syndrome 46.6%, osseous sarcoidosis 25.9%, chronic sarcoid arthritis 24.1% and sarcoid myopathy 6.9%. The cohort was predominantly female (43/58 patients, 74%) and Caucasian (48/58 patients, 82.8%). Mean age was 47.2 years. One patient had overlap of osseous sarcoidosis and chronic sarcoid arthritis, another patient initially had Lofgren syndrome and later developed chronic sarcoid arthritis. Sarcoid myopathy patients presented with myalgia more often than muscle weakness. CONCLUSION We identified a large cohort of MSK sarcoidosis and determined the prevalence of all 4 subtypes. In patients who do develop MSK manifestations of sarcoidosis, they are commonly a part of the initial presentation of sarcoidosis. There is an unmet need to establish standardized classification criteria for the 4 MSK sarcoidosis syndromes.
Collapse
Affiliation(s)
- Sanjeev Patil
- Rheumatology, The University of Vermont Medical Center, Burlington, VT, USA
| | - Carolyn A Hilliard
- Department of Internal Medicine, University of Iowa Hospitals and Clinics, Iowa City, IA, USA
| | | | - Sreedevi Koppisetti Jenigiri
- Division of Nephrology, Department of Internal Medicine, University of Iowa Hospitals and Clinics, Iowa City, IA, USA
| | - Elizabeth H Field
- Division of Immunology, Department of Internal Medicine, University of Iowa Hospitals and Clinics, Iowa City, IA, USA
| | - Namrata Singh
- Division of Rheumatology, Department of Internal Medicine, University of Washington, Seattle, WA, USA
| |
Collapse
|
21
|
Fer F, Allenbach Y, Benveniste O. [Myositis: From classification to diagnosis]. Rev Med Interne 2020; 42:392-400. [PMID: 33248855 DOI: 10.1016/j.revmed.2020.10.379] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 09/26/2020] [Accepted: 10/18/2020] [Indexed: 11/26/2022]
Abstract
Idiopathic inflammatory myopathies, or IIM, are a group of acquired diseases that affect the muscle to a certain extent, and may also affect other organs. They include dermatomyositis, which can affect the muscle eventualy, with a typical skin rash; inclusion body myositis, with a purely muscular expression resulting in a slow progressive deficit; and the former group of "polymyositis", a misnomer that actually includes other categories of IIM, such as immune-mediated necrotizing myopathies, with a severe muscle involvement often presents from the onset of the disease; antisynthetase syndrome, which combines muscle damage, joint involvement and a potentially life-threatening lung disease; and overlapping myositis, which combines muscle damage with other organs involvement connected to another autoimmune disease. The diagnosis of IIM is based on rigorous clinical examination and interrogation, electromyographic data and immunological testing for myositis specific antibodies. This antibody dosage must be extended or repeated if necessary to classify correctly the muscle disease under investigation, as the available tests may not perform well enough. Muscle biopsy, although very informative, is not anymore systematically recommended when the clinic and the antibodies are typical. However, some forms of IIM are sometimes difficult to classify; in these cases, muscle biopsy plays a crucial role in the precise etiological diagnosis.
Collapse
Affiliation(s)
- F Fer
- Département de Médecine interne et immunologie clinique, Centre national de référence des maladies neuromusculaires, hôpital Pitié-Salpêtrière, AP-HP, 47-83, boulevard de l'Hôpital, 75651 Paris cedex 13, France.
| | - Y Allenbach
- Département de Médecine interne et immunologie clinique, Centre national de référence des maladies neuromusculaires, hôpital Pitié-Salpêtrière, AP-HP, 47-83, boulevard de l'Hôpital, 75651 Paris cedex 13, France
| | - O Benveniste
- Département de Médecine interne et immunologie clinique, Centre national de référence des maladies neuromusculaires, hôpital Pitié-Salpêtrière, AP-HP, 47-83, boulevard de l'Hôpital, 75651 Paris cedex 13, France
| |
Collapse
|
22
|
Papiris SA, Manali ED, Papaioannou AI, Georgakopoulos A, Kolilekas L, Pianou NK, Kallergi M, Papaporfyriou A, Kallieri M, Apollonatou V, Papadaki G, Malagari K, Kelekis NL, Pneumatikos SG, Chatziioannou S. Prevalence, distribution and clinical significance of joints, muscles and bones in sarcoidosis: an 18F-FDG-PET/CT study. Expert Rev Respir Med 2020; 14:957-964. [PMID: 32460642 DOI: 10.1080/17476348.2020.1775587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
OBJECTIVES In Sarcoidosis joints-muscles-bones (JMBs) localizations are of the least common. 18F-FDG-PET/CT imaging revolutionized detection of JMBs involvement by adding metabolic activity information and allowing for a comprehensive, whole-body mapping of the disease. AIM AND METHODS This study investigated prevalence, distribution, and clinical significance of JMBs sarcoidosis in 195 consecutive patients that underwent 18F-FDG PET/CT examination. RESULTS Joint and bone involvement were encountered in 15% of patients with a mean of the maximum-standardized-uptake-value (SUVmax) of 6.1. Most common location was the axial skeleton. Hypercalciuria was significantly more frequent in patients with osseous involvement (p = 0.003). Muscle activity (SUVmax = 2.4) was encountered in 20% of the patients, most frequently in treatment-naïve (p = 0.02). The muscles of the lower extremities were affected the most. Muscle and bone localization coexist in 50% of the cases. JMBs disease was almost asymptomatic, not related to chronicity but to pulmonary, nodal, and systemic disease. Long-term follow-up and treatment response of affected patients confirmed sarcoidosis. CONCLUSION 18F-FDG-PET/CT revealed JMBs localizations and coexistence with other organ sites supporting the concept that sarcoidosis is a systemic disease. By allowing an integrative interpretation of multi-organ involvement in the context of a pattern highly suggestive of sarcoidosis, it strongly keeps-off the diagnosis of malignancy.
Collapse
Affiliation(s)
- Spyros A Papiris
- 2nd Pulmonary Medicine Department, General University Hospital "Attikon", Medical School, National and Kapodistrian University of Athens , Athens, Greece
| | - Effrosyni D Manali
- 2nd Pulmonary Medicine Department, General University Hospital "Attikon", Medical School, National and Kapodistrian University of Athens , Athens, Greece
| | - Andriana I Papaioannou
- 2nd Pulmonary Medicine Department, General University Hospital "Attikon", Medical School, National and Kapodistrian University of Athens , Athens, Greece
| | - Alexandros Georgakopoulos
- 2nd Department of Radiology, Division of Nuclear Medicine, General University Hospital "Attikon", Medical School, National and Kapodistrian University of Athens , Athens, Greece.,Nuclear Medicine Division, Biomedical Research Foundation of the Academy of Athens , Athens, Greece
| | | | - Nikoletta K Pianou
- Nuclear Medicine Division, Biomedical Research Foundation of the Academy of Athens , Athens, Greece.,Departments of Nuclear Medicine, Evangelismos General Hospital , Athens, Greece
| | - Maria Kallergi
- Nuclear Medicine Division, Biomedical Research Foundation of the Academy of Athens , Athens, Greece.,Department of Biomedical Engineering, University of West Attika , Athens, Greece
| | - Anastasia Papaporfyriou
- 2nd Pulmonary Medicine Department, General University Hospital "Attikon", Medical School, National and Kapodistrian University of Athens , Athens, Greece
| | - Maria Kallieri
- 2nd Pulmonary Medicine Department, General University Hospital "Attikon", Medical School, National and Kapodistrian University of Athens , Athens, Greece
| | - Vasiliki Apollonatou
- 2nd Pulmonary Medicine Department, General University Hospital "Attikon", Medical School, National and Kapodistrian University of Athens , Athens, Greece
| | - Georgia Papadaki
- 2nd Pulmonary Medicine Department, General University Hospital "Attikon", Medical School, National and Kapodistrian University of Athens , Athens, Greece
| | - Katerina Malagari
- 2nd Department of Radiology, General University Hospital "Attikon", Medical School, National and Kapodistrian University of Athens , Athens, Greece
| | - Nikolaos L Kelekis
- 2nd Department of Radiology, General University Hospital "Attikon", Medical School, National and Kapodistrian University of Athens , Athens, Greece
| | - Spyros G Pneumatikos
- 3rd Orthopaedic Department, KAT General Hospital, Medical School, National and Kapodistrian University of Athens , Athens, Greece
| | - Sofia Chatziioannou
- 2nd Department of Radiology, Division of Nuclear Medicine, General University Hospital "Attikon", Medical School, National and Kapodistrian University of Athens , Athens, Greece.,Nuclear Medicine Division, Biomedical Research Foundation of the Academy of Athens , Athens, Greece
| |
Collapse
|
23
|
Nicolau S, Liewluck T, Milone M. Myopathies with finger flexor weakness: Not only inclusion-body myositis. Muscle Nerve 2020; 62:445-454. [PMID: 32478919 DOI: 10.1002/mus.26914] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 04/29/2020] [Accepted: 05/03/2020] [Indexed: 12/11/2022]
Abstract
Muscle disorders are characterized by differential involvement of various muscle groups. Among these, weakness predominantly affecting finger flexors is an uncommon pattern, most frequently found in sporadic inclusion-body myositis. This finding is particularly significant when the full range of histopathological findings of inclusion-body myositis is not found on muscle biopsy. Prominent finger flexor weakness, however, is also observed in other myopathies. It occurs commonly in myotonic dystrophy types 1 and 2. In addition, individual reports and small case series have documented finger flexor weakness in sarcoid and amyloid myopathy, and in inherited myopathies caused by ACTA1, CRYAB, DMD, DYSF, FLNC, GAA, GNE, HNRNPDL, LAMA2, MYH7, and VCP mutations. Therefore, the finding of finger flexor weakness requires consideration of clinical, myopathological, genetic, electrodiagnostic, and sometimes muscle imaging findings to establish a diagnosis.
Collapse
Affiliation(s)
- Stefan Nicolau
- Department of Neurology, Mayo Clinic, 200 1st Street SW, Rochester, Minnesota, 55905, USA
| | - Teerin Liewluck
- Department of Neurology, Mayo Clinic, 200 1st Street SW, Rochester, Minnesota, 55905, USA
| | - Margherita Milone
- Department of Neurology, Mayo Clinic, 200 1st Street SW, Rochester, Minnesota, 55905, USA
| |
Collapse
|
24
|
Dal-Bianco A, Wenhoda F, Rommer PS, Weber M, Altmann P, Kraus J, Leutmezer F, Salhofer-Polanyi S. Do elevated autoantibodies in patients with multiple sclerosis matter? Acta Neurol Scand 2019; 139:238-246. [PMID: 30447159 DOI: 10.1111/ane.13054] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 11/08/2018] [Accepted: 11/11/2018] [Indexed: 12/20/2022]
Abstract
OBJECTIVES The incidence and clinical impact of serum autoantibodies in patients with multiple sclerosis (MS) are controversially discussed. The aim of the study was to reassess the value of elevated serum autoantibodies in our MS study cohort. MATERIAL & METHODS In total, 176 MS patients were retrospectively analyzed for coexistence and clinical impact of increased serum autoantibody levels. RESULTS The 18.8% of the MS cohort showed elevated serum autoantibody levels, but only 10.2% of all MS patients were diagnosed with a further autoimmune disease (AI). Patients with elevated serum autoantibodies (AABS) were not significantly more often diagnosed with a clinical manifest AI as compared to patients with negative autoantibodies (P = 0.338). MS patients with disease duration of more than 10 years showed no significant increase of positive autoantibodies as compared to patients with a more recent disease onset (P = 1). MS patients with elevated serum autoantibodies did not exhibit a significantly worse disease course (P = 0.428). CONCLUSIONS According to our data, elevated serum autoantibodies do not have the potential to serve as a prognostic tool for disease severity in patients with MS Since MS patients with positive serum AABS did not significantly more often suffer from clinical manifest AIs than MS patients with negative serum AABS, the role of routine testing of serum AABS in MS patients should be critically called into question.
Collapse
Affiliation(s)
| | - Fritz Wenhoda
- Department of Neurology; Medical University of Vienna; Vienna Austria
| | | | - Michael Weber
- Department of Radiology; Medical University of Vienna; Vienna Austria
| | - Patrick Altmann
- Department of Neurology; Medical University of Vienna; Vienna Austria
| | - Jörg Kraus
- Department of Laboratory Medicine; Paracelsus Medical University and Salzburger Landeskliniken; Salzburg Austria
- Department of Neurology, Medical Faculty; Heinrich-Heine-University; Düsseldorf Germany
| | - Fritz Leutmezer
- Department of Neurology; Medical University of Vienna; Vienna Austria
| | | |
Collapse
|
25
|
Alhammad RM, Liewluck T. Myopathies featuring non-caseating granulomas: Sarcoidosis, inclusion body myositis and an unfolding overlap. Neuromuscul Disord 2018; 29:39-47. [PMID: 30578101 DOI: 10.1016/j.nmd.2018.10.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2018] [Revised: 10/23/2018] [Accepted: 10/31/2018] [Indexed: 11/18/2022]
Abstract
Granulomatous myopathies are etiologically heterogeneous myopathies, pathologically characterized by the presence of intramuscular granulomas. Treatment outcomes are variable. We aimed to identify prognostic factors of treatment outcomes in myopathies featuring non-caseating granulomas. Sixteen patients were identified (9 sarcoid myopathy, 6 inclusion body myositis, and 1 granulomatous myopathy of indeterminate cause) over a 21-year period. The median age at diagnosis was 67 years in sarcoid myopathy group, and 64 years in inclusion body myositis group. Three inclusion body myositis patients were initially diagnosed with sarcoid myopathy based on the presence of systemic features of sarcoidosis and findings on muscle biopsies, but subsequent biopsies performed because of treatment refractoriness, showed all canonical pathologic features of inclusion body myositis. We identified sarcoplasmic congophilic inclusions in 6 sarcoid myopathy patients without associated rimmed vacuoles or typical weakness pattern of inclusion body myositis. Four inclusion body myositis and 4 of 5 sarcoid myopathy patients with congophilic inclusions were refractory to immunotherapy. Our study portrays the overlapping clinical and pathological features of sarcoid myopathy and inclusion body myositis. The presence of sarcoplasmic congophilic inclusions in sarcoid myopathy may predict an unfavorable outcome of immunosuppressive therapy, but a larger prospective study is required to further validate this observation.
Collapse
Affiliation(s)
- Reem M Alhammad
- Department of Neurology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA; Section of Neurology, Department of Medicine, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Teerin Liewluck
- Department of Neurology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA.
| |
Collapse
|
26
|
Dalmau J. Looks can be deceiving: A B-cell-mediated encephalopathy with normal MRI? NEUROLOGY-NEUROIMMUNOLOGY & NEUROINFLAMMATION 2018; 5:e461. [PMID: 29666840 PMCID: PMC5902337 DOI: 10.1212/nxi.0000000000000461] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|