A 9-year-old cat presented with an inflammatory discharge and a polypoid mass located in the left ear canal, penetrating the tympanic membrane. The polypoid mass was removed surgically using traction-avulsion but not submitted for histological examination. Subsequently, the cat underwent computed tomography of the head, which revealed an irregular mass located in the left tympanic bulla....
✦ The floor
Discussion
Signed responses from readers of the wire.
No actionable change for human audiology practice; this is a veterinary case report of a rare benign ear tumor in a cat with no direct human clinical implications.
This case adds to the very limited veterinary literature on rare middle-ear glandular tumors in companion animals, which may inform comparative otopathology research.
- 01A 9-year-old cat presented with inflammatory ear discharge and a polypoid mass in the left ear canal.
- 02The mass penetrated the tympanic membrane (eardrum), which is an unusual finding for this tumor type.
- 03Histopathology confirmed the diagnosis of tympanic papillary adenoma, a rare benign ear tumor.
- 04This is a case report, so findings apply only to this single patient.
- 05Published in Journal of Comparative Pathology, 2026.
The tympanic papillary adenoma penetrated the tympanic membrane of the affected cat.
studypartially supported- PMID
- 42617554
- DOI
- 10.1016/j.jcpa.2026.08.004.
- Journal
- Journal of Comparative Pathology
- Publication type
- case_report
- Evidence level
- 4
- Sample size
- 1
- Population
- Single 9-year-old domestic cat with a polypoid ear mass
- Intervention
- Histopathological examination and diagnosis of tympanic papillary adenoma
Primary outcomes
Histopathological characterization of the tympanic mass; Clinical and gross pathological description of the tumor