Three-Phase 99mTc-MDP Bone Scintigraphy and SPECT/CT in Pediatric Pseudodystrophy.

Pseudodystrophy is a rare condition clinically resembling reflex sympathetic dystrophy. Distinction between both disorders is based on clinical features and bone scintigraphy. We report a case of 12-year-old girl presented with pain, swelling, and functional impairment of left foot after minor trauma. Clinical assessment revealed atrophy of left calf, cyanosis and coldness of left foot. Laboratory investigations were normal. X-ray and MRI of the foot were unremarkable. Bone scintigraphy showed hypoperfusion and diffusely reduced tracer uptake in the left lower leg and left foot. Diagnosis of pseudodystrophy was made on the basis of history, clinical examination, and bone scintigraphy findings.