Plasma cell myeloma lytic lesions mimicking vanishing bone syndrome in a young patient.

Plasma cell myeloma is a bone marrow disorder characterized by neoplastic proliferation of plasma cells within the bone marrow replacing normal cells. We present a case report of a 25-year-old female with bilateral lower and upper limb pains. She had been seen in various health facilities for the past 2 years with progressively worsening disability. Skeletal survey revealed multiple osteolytic lesions in the appendicular skeleton resembling vanishing bone syndrome. Ultrasound-guided biopsy was done with histological diagnosis of plasma cell myeloma. This case is unique because of the young age at presentation, HIV seropositive status and atypical appearance of the lesions.