A case of mushroom shape temporal bone XXXX .

@entity1 @entity129 @entity932 @entity41 @entity5 @entity1181
A cranial vault @entity1181 is relatively common @entity5 . Mushroom shaped skull @entity1181 is, however, extremely rare. Twenty seven years old female developed slow growing hard mass posterior to the ear. CT scan revealed a mushroom shaped osseous mass approximately 2.5 cm in diameter protruding from the temporal bone at the site of asterion. And the @entity5 was located over the right sigmoid sinus. The sigmoid sinus engraved approximately 4mm to the @entity5 and had a branching to one emissaries' vein. Operation was performed under general anesthesia. The @entity5 was excised first by cutting the base of the @entity5 , and then @entity41 was grinded using a round head cutting bar. A chisel dissection was not recommended because of underlining sinus. Histological findings were consistent with a benign @entity1181 . The postoperative course was uneventful. CT examination immediately done after operation revealed no evidence of @entity932 , or injury of vessels. Osetoma was excised, and the surface of cranial bone at the operation site was smooth and cosmetically acceptable. At 6-months follow up, @entity1 remains asymptomatic and recurrence free. CT examination with Multi Planer Reconstruction imaging or 3D reconstruction is highly recommended for the operational planning of @entity129 .
