PEREIRA ARIAS, J.G.; IBARLUZEA GONZALEZ, J.G.    ALVAREZ MARTINEZ, J.A.. Bone lithiasis: uncommon pathology. []. , 27, 6, pp.471-477. ISSN 0210-4806.

Bone lithiasis is an uncommon disease unfrequent reported in the literature. Its origin is supported on urothelium and conjuctive tissue bone metaplasia. High suspiccius index is needed to establish its diagnosis; where radilogical signs and extracorporeal lithotripsy resistence drive to these uncommon entity. Definitive diagnosis is based on hystological exam. We report a 49-years-old patient with left obstructive uropathy due to a high ureteral lumbar lithiasis who precised ureterolithectomy and parcial ureterectomy after extracorporeal litotripsy failure. Hystologycal exam confirmed bone lithiasis and scamous metaplasia. Epidemyologic, diagnostic and therapeutical aspects are briefly reviewed in literature. Bone calculous treatment include lithectomy and urothelium resection to avoid posterior recurrence. Posible association to tumoral transformation suggest close evolutive follow-up.

: Bone lithiasis; Bone metaplasia.

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