RT Journal Article
SR Electronic
T1 Rare case of Sjögren’s syndrome antibody (SSA-Ro52kDA)-associated interstitial lung disease and myositis with pipe stem capillaries
JF BMJ Case Reports
JO BMJ Case Reports
FD BMJ Publishing Group Ltd
SP e244133
DO 10.1136/bcr-2021-244133
VO 14
IS 10
A1 Ramu, Anitha
A1 Kaur, Navneet
A1 Jain, Ruchi
YR 2021
UL http://casereports.bmj.com/content/14/10/e244133.abstract
AB Necrotising myopathy with pipestem capillaries is a distinct form of inflammatory myopathy exhibiting only sparse inflammation on biopsy, with clinical presentation and histopathological profile entirely different from dermatomyositis, polymyositis or inclusion body myositis. A 51-year-old non-diabetic man presents with progressively worsening shortness of breath and myalgias with only mild proximal muscle weakness and elevated serum creatine kinase. Autoimmune workup, ordered after ruling out infectious and cardiac aetiologies, returned positive for Sjögren’s syndrome antibody (SSA/Ro-52). Lung imaging and biopsy were suggestive of cryptogenic organising pneumonia and muscle biopsy showed myositis with pipestem capillaries and abnormal deposition of membrane attack complex with only sparse inflammation. The patient received high-dose steroids, mycophenolate mofetil, intravenous immunoglobulin and rituximab with improvement in muscle symptoms. However, his pulmonary findings progressed, requiring evaluation for a lung transplant. This case emphasises the need for further research to better understand this disease entity and improve mortality and morbidity in these patients.