A rare case of Hyperphosphatemic Tumoral Calcinosis in a 13 year old Nigerian boy

Tumoral calcinosis is a rare disorder that presents with ectopic calcifications deposited at different periarticular soft tissue regions of the body- mostly hips, elbows and shoulders. It results from relative deficiency of, or resistance to, phosphate-regulating hormone - Fibroblast Growth Factor 23 (FGF23), due to gene mutations, causing hyperphosphatemia. We describe this condition in 13 year old, Nigerian boy who presented 7 history multiple body swellings firm hard consistency. Laboratory investigations showed hyperphosphatemia normal serum calcium, vitamin D parathyroid levels. Radiological histological findings were consistent tumoral calcinosis. Having had two previous surgeries remove lesions, he was now commenced on low phosphate diet binders. important differentiate other causes pathological calcification using clinical laboratory especially environments where molecular genetic testing not readily available.