Comparison of duration of deafness and tumour invasion to the inner ear from metastatic tumours of the internal auditory canal: human temporal bone pathology.
Four cases (seven ears) of metastatic tumour of the internal auditory canal were studied. The histopathological findings confirmed that the inner ear invasion of the tumour follows a unique course, as reported in the literature. Relationship between duration of deafness and extent of tumour invasion in the inner ear is discussed. It is suggested that the deafness could occur via neural invasion or compression near the ductus spiralis foraminosus.
Nishimura
Shinichi
S
Department of Otolaryngology, Faculty of Medicine University of Tokyo, Japan.
Kaga
Kimitaka
K
Tsuzuku
Toshihiro
T
Iino
Yukiko
Y
D000230:Adenocarcinoma / Q000473:pathology* / Q000556:secondary*; D000293:Adolescent; D000328:Adult; D003638:Deafness / Q000209:etiology*; D006801:Humans; D008175:Lung Neoplasms / Q000473:pathology; D008297:Male; D008875:Middle Aged; D009361:Neoplasm Invasiveness; D010190:Pancreatic Neoplasms / Q000473:pathology; D010610:Pharyngeal Neoplasms / Q000473:pathology; D012509:Sarcoma / Q000473:pathology / Q000556:secondary; D012888:Skull Neoplasms / Q000473:pathology* / Q000556:secondary*; D013274:Stomach Neoplasms / Q000473:pathology; D013701:Temporal Bone / Q000473:pathology*