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Becker muscular dystrophy associated with focal myositis on bone scintigraphy
P T Minshew1, E D Silverman, C Samuels-Botts
1Department of Radiology, National Naval Medical Center, Bethesda, Maryland 20889-5600, USA.
Methods:
Bone scintigraphy was performed on a 6-year-old boy with possible sacroiliitis.
Results:
Extraosseous uptake in the region of the paraspinal, psoas and calf muscles was noted and suggested myositis. Subsequently, his creatine kinase level was found to be elevated. Results of a neuromuscular examination, muscle biopsy with dystrophin immunostaining, and a multiplex polymerase chain reaction led to the diagnosis of Becker muscular dystrophy.
Conclusions:
A patient with Becker muscular dystrophy had several distinct areas of myositis localized by bone scintigraphy. Pathologic features including focal myonecrosis and regeneration may contribute to this scintigraphic picture.