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Anti-SRP Myopathy with Sensorimotor Polyneuropathy: A Case Report
CONCLUSION: Anti-SRP myopathy can present with sensorimotor polyneuropathy. Thus, the possibility that the same pathological process affected the skeletal muscles and peripheral nerves should be considered.PMID:37723914
Source: Acta Neurologica Taiwanica - September 19, 2023 Category: Neurology Authors: Lei-Ying Huang Yi-Jen Peng Yueh-Feng Sung Source Type: research

Mitochondrial Myopathy in a 21-Year-Old Man Presenting With Bilateral Lower Extremity Weakness and Swelling
We report a case of a 21-year-old student who developed bilateral lower limb weakness, pain, and swelling diagnosed with mitochondrial myopathy on muscle biopsy. Initial laboratory tests revealed elevated creatinine kinase, brain natriuretic peptide, troponin, myoglobin, and lactic acid and reduced serum bicarbonate. Cardiac workup revealed systolic heart failure with a reduced ejection fraction. Endomyocardial biopsy revealed punctate foci of lymphocytic myocarditis. However, cardiac magnetic resonance imaging did not reveal either myocarditis or an infiltrative cardiac disease. An extensive autoimmune and infection work-...
Source: Primary Care - May 10, 2023 Category: Primary Care Authors: Kavya Bharathidasan Abbie Evans Fabiana Monte Alegre Olmos Fernandez Arunee Tansrisook Motes Kenneth Nugent Source Type: research

P035  Inflammatory myopathy and metabolic disorders causing myopathies
Conclusion This lady was initially managed as inflammatory myopathy but did not respond to high dose methylprednisolone. There were atypical features including normal inflammatory markers, MRI thighs showing predominantly fatty infiltration and muscle atrophy and the muscle biopsy with abundant lipid accumu lation suggestive of a metabolic disorder. We are awaiting full results of genetic testing. This case is a reminder of the importance of tissue diagnosis and reassessing the initial diagnosis if the clinical picture changes or patients do not respond as expected to treatment.Disclosure M. Malik: None.A. Mason: None....
Source: Rheumatology - April 26, 2021 Category: Rheumatology Source Type: research

Intravenous human immunoglobulin and/or methylprednisolone pulse therapies as a possible treat-to-target strategy in immune-mediated necrotizing myopathies
AbstractTo evaluate the relevance of immunoglobulin (IVIg) and/or methylprednisolone pulse therapies in immune-mediated necrotizing myopathy (IMNM). Secondarily, to analyze the muscle damage measured by late magnetic resonance images (MRI). This retrospective study included 13 patients with defined IMNM (nine patients positive for the anti-signal recognition particle and four patients positive for hydroxyl-methyl-glutaryl coenzyme A reductase) who were followed from 2012 to 2018. International Myositis Assessment and Clinical Studies Group (IMACS) scoring  assessed the response to a standardized treat-to-target protocol w...
Source: Rheumatology International - June 11, 2019 Category: Rheumatology Source Type: research