Publication:

Widespread skeletal brown tumor with rare elbow involvement and associated hydronephrosis in a case of primary hyperparathyroidism

We report a rare case of primary hyperparathyroidism in a 32-year-old female caused by a parathyroid adenoma. The patient initially complained of left elbow pain. Imaging revealed multiple skeletal brown tumors affecting unusual sites such as the elbow, as well as multifocal involvement of the vertebrae, sternum, radius, ulna, humerus, femurs, pelvic girdle, and scapulae. An abdominal ultrasound further revealed hydronephrosis and renal calculi in the right kidney. This case highlights the uncommon widespread skeletal distribution and involvement of atypical sites by brown tumors, along with the rare complication of hydronephrosis.