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Squamous cell carcinoma arising in an intradiploic epidermoid cyst
T Bretschneider1, U Dorenbeck, M Strotzer
1Department of Radiology, University Hospital, D-93042 Regensburg, Germany.
Neuroradiology
|August 14, 1999
Abstract:
A 71-year-old woman presented with the symptoms of a posterior cranial fossa mass. CT and MRI revealed a lytic lesion in the occipital bone and a tumour infiltrating the dura mater, venous sinuses and cerebellum. Histopathology demonstrated a moderately differentiated squamous cell carcinoma arising from a primarily intradiploic epidermoid cyst. Despite surgery and radiotherapy, the tumour progressed and the patient died 1 year later.