World Health Organization Classification of the Histologic Types of the Tumors of the Ear and the Temporal Bonea Descriptor ICD-O Codes (b) Squamous cell carcinoma 8070/3 Ceruminous
adenocarcinoma 8420/3 Ceruminous
adenoid cystic carcinoma 8200/3 Ceruminous
mucoepidermoid carcinoma 8430/3 Ceruminous
adenoma 8420/0 Ceruminous
pleomorphic adenoma Ceruminous
syringocystadenoma papilliferum Middle ear adenoma (carcinoid) Middle ear adenocarcinoma Aggressive papillary tumor 8260/1 Endolymphatic sac tumor 8140/3 Vestibular schwannoma 9560/0 Meningioma 9530/0 (a) Reproduced with permission from the World Health Organization (WHO)/International Agency for Research on Cancer.
glands in ear meatus of domestic fowl: morphology, histochemistry and ultrastructure.
glands are modified apocrine sweat glands limited to outer 1/3 of external auditory canal.
pleomorphic adenoma is identical to a salivary gland pleomorphic adenoma, thus showing chondromyxoid matrix material juxtaposed to, and blended with, epithelium, with the added feature of ceruminous
differentiation among the epithelial cells.
They separated the tumors into 4 types: (1) ceruminous
gland adenocarcinoma, (2) ceruminous
adenoma, (3) adenoid cystic carcinoma, and (4) pleomorphic adenoma.
Its location and the patient's age rendered the diagnosis of ceruminous
adenoma unlikely, and protein expression confirmed that the mass was a NAME tumor.
Keywords : Ceruminous
adenoma; dog; surgical management
The cartilaginous portion contains loosely bound skin with numerous sebaceous and ceruminous
glands, while the bony portion has a thin skin that is densely adherent to the underlying periosteum.
Bass (2004) stated that Labrador retrievers have increased apocrine and ceruminous
glands which lead to excess glandular secretions (Fig.
The patient should be advised to undergo an annual ear evaluation to detect possible accumulation of ceruminous
or epithelial debris.
Animals infested with O.cynotis most commonly develop otitis externa characterized by vertical and horizontal canal erythema and a dark brown, ceruminous
otic exudates (Curtis, 2004).
Adenoid cystic carcinoma is a rare malignant tumor that affects the major and minor salivary glands, the lacrimal glands, the ceruminous
glands, and occasionally the excretory glands of the female genital tract.