title: Endolymphatic sac tumour.
abstract: We present a case of a papillary tumour at the cerebellopontine angle in a 41-year-old man. He presented with left-sided facial and ear pain associated with dizziness, nystagmus and hearing loss. CT scan of the temporal bone showed a destructive tumour at the left cerebellopontine angle. 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.
authors.affiliation: Department of Pathology, Faculty of Medicine and Health Science, Universiti Malaysia Sarawak. anmzulkarnaen@fmhs.unimas.my
authors.forename: Mohammad
authors.initials: M
authors.lastname: Zulkarnaen
authors.forename: Ing Ping
authors.initials: IP
authors.lastname: Tang
authors.forename: Siong Lung
authors.initials: SL
authors.lastname: Wong
mesh_terms: D000231:Adenocarcinoma, Papillary / Q000378:metabolism / Q000473:pathology* / Q000628:therapy; D000328:Adult; D014408:Biomarkers, Tumor / Q000378:metabolism; D003131:Combined Modality Therapy; D004428:Ear Neoplasms / Q000378:metabolism / Q000473:pathology* / Q000628:therapy; D004712:Endolymphatic Sac / Q000378:metabolism / Q000473:pathology* / Q000601:surgery; D005904:Glial Fibrillary Acidic Protein / Q000378:metabolism; D006801:Humans; D008297:Male; D018396:Mucin-1 / Q000378:metabolism; D009361:Neoplasm Invasiveness; D018365:Neoplasm, Residual / Q000175:diagnosis / Q000532:radiotherapy; D013701:Temporal Bone / Q000473:pathology; D016896:Treatment Outcome
chemical_list: D014408:Biomarkers, Tumor; D005904:Glial Fibrillary Acidic Protein; D018396:Mucin-1