[Myositis as differential diagnosis in polymyalgia rheumatica].
An 82-year-old man was diagnosed with polymyalgia rheumatica. Rapid improvement was achieved after peroral prednisolone administration. Two years later while being treated with low-dose prednisolone, the acute phase reactants increased, now also with proximal muscle weakness, weight loss and elevated muscle enzymes. Needle biopsy confirmed dermatomyositis. Polymyalgia rheumatica is a common disease among the elderly. It has several differential diagnoses including dermatomyositis and polymyositis.
Gråsten Gigthospital, Reumatologisk Afdeling, Denmark. carstendemantsorensen@hotmail.com
Carsten Demant
CD
Sørensen
Lone Holm
LH
Hansen
Kim
K
Hørslev-Petersen
D000369:Aged, 80 and over; D001707:Biopsy, Needle; D003882:Dermatomyositis / Q000175:diagnosis* / Q000473:pathology; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D018482:Muscle, Skeletal / Q000201:enzymology / Q000473:pathology; D011111:Polymyalgia Rheumatica / Q000175:diagnosis*