adenoid cystic carcinoma may be indistinguishable from a primary parotid gland tumor, which may require parotidectomy for thorough evaluation.
Adenoid cystic carcinomas, ceruminous
adenocarcinomas, mucoepidermoid tumors, myoepithelial carcinomas, epidermoid carcinomas, basal cell carcinomas, and different types of sarcomas are among these.
Earwax is comprised of shed skin cells, as well as hair, and the secretions of the ceruminous
and sebaceous glands of the outside ear canal.
Infestation of mite results in pruritic symptoms and otitis externa which is characterized by ear canal erythema and presence of dark brown ceruminous
otic exudates (Harvey et al., 2001).
The subcutaneous tissue of the cavum conchae contains fine hairs and numerous sebaceous glands, whereas at the MEAC level it has abundant hairs as well as sebaceous and ceruminous
, but not eccrine sweat, glands (Figures 1(a) and 3(a)).
(2) Possible origins of adenocarcinomas of the external auditory meatus in people include ceruminous
or sebaceous glands, direct invasion from the parotid gland, or distant metastasis from other glandular tissues.
Other primary histological types of neoplasms arising in this area include adenocarcinoma, adenoid cystic carcinoma, mucoepidermoid carcinoma, basal cell carcinoma, ceruminous
carcinoma, and rhabdomyosarcoma.
glands are modified apocrine glands of the external auditory meatus; they rarely give rise to malignant change.
Comparison of 4 fixation and staining methods for the cytologic evaluation of ear canals with clinical evidence of ceruminous
is the secretion of the ceruminous
glands in the skin of the outer ear canal.
(3-6) Cerumen is a mixture of dead epithelial cells and hair combined with secretions of the sebaceous and ceruminous
(apocrine) glands in the outer two-thirds of the external auditory canal (EAC).
Finally, hair in the ear canal and ceruminous
debris in patients intolerant of microdebridement can make it difficult to to bring the TM into focus, thereby reducing the yield of examination.