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Updated: Jan 25, 2026

Dissection of the Endolymphatic Sac from Mice
Published on: March 29, 2021
A rare tumour in the cerebellopontine angle: endolymphatic sac tumour
Abderrahim Elktaibi1, Amal Damiri1, Issam Rharrassi1
1Department of Pathological Anatomy, Mohammed V Military Teaching Hospital, Rabat, Morocco.
Abstract:
We present a case of a papillary tumour at the cerebellopontine angle in a 54-year-old man. He presented with right-sided ear pain associated with dizziness and hearing loss. The radiological diagnosis was in favor of acoustic neurinoma. Surgical excision was performed and the diagnosis of the endolymphatic sac tumour was made. Endolymphatic tumour is a low grade adenocarcinoma that originates from the endolymphatic sac. The definitive diagnosis requires a combination of clinical features, radiological finding and pathological correlation.
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