Undiagnosed Chronic Renal Failure Presenting With Brown Tumor of Bilateral Patellae With Pathological Fracture

Mohan Kumar EG, Yathish Kumar GM, Mohammed Noorudheen

Abstract



It has been reported that the common sites of brown tumors are the jaw, pelvis, ribs, femurs and clavicles. We report our experience in a case of a middle aged man with undiagnosed chronic renal failure and secondary hyperparathyroidism who presented to us with Brown tumor of bilateral patellae with pathological fracture. An initial radiograph showed an osteolytic lesion and MR images showed a mixed solid and multiloculated cystic tumor in the left patella and pathological fracture in right patella. Being a sesamoid bone, brown tumor of patella is extremely rare indicative of severe secondary hyperparathyroidism. Fracture was treated surgically by curettage, biopsy and wiring, and renal failure was treated by nephrologist. One and half months after the fixation of fracture and improved renal function, along with calcium and Vit D supplements, complete healing of fracture and rapid bone formation was observed on radiographs.


Keywords


brown tumour, patella, bilateral

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ISSN: 2249 – 2348. Published by: Kerala Orthopaedic Association

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