title: A case of invasive thymoma associated with myasthenia gravis, myositis and demyelinating neuropathy.
abstract: A 56 year old male presented after 2 months of muscle stiffness, pain and palpable lumps. Biopsy confirmed the presence of myositis. Myasthenia gravis and peripheral neuropathy became clinically apparent within days of commencing corticosteroid therapy. 4 months later, at operation, a locally invasive thymoma was found. This combination of features has not previously been described.
mesh_terms: D003711:Demyelinating Diseases / Q000150:complications* / Q000473:pathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D009157:Myasthenia Gravis / Q000150:complications*; D009220:Myositis / Q000150:complications*; D009361:Neoplasm Invasiveness; D013497:Sural Nerve / Q000473:pathology; D013945:Thymoma / Q000150:complications* / Q000473:pathology; D013953:Thymus Neoplasms / Q000150:complications* / Q000473:pathology