Ceruminous glands are specialized sudoriferous glands (sweat glands) located subcutaneously in the external auditory canal, in the outer third. Ceruminous glands are simple, coiled, tubular glands made up of an inner secretory layer of cells and an outer myoepithelial layer of cells.[1] They are classed as apocrine glands. The glands drain into larger ducts, which then drain into the guard hairs that reside in the external auditory canal.[2] Here they produce cerumen, or earwax, by mixing their secretion with sebum and dead epidermal cells. Cerumen keeps the eardrum pliable, lubricates and cleans the external auditory canal, waterproofs the canal, kills bacteria, and serves as a barrier to trap foreign particles (dust, fungal spores, etc.) by coating the guard hairs of the ear, making them sticky.[1]
These glands are capable of developing both benign and malignant tumors. The benign tumors include ceruminous adenoma, ceruminous pleomorphic adenoma, and ceruminous syringocystadenoma papilliferum. The malignant tumors include ceruminous adenocarcinoma, adenoid cystic carcinoma, and mucoepidermoid carcinoma.[2]
^ abSaladin, KS (2010). Anatomy and Physiology: The Unity of Form and Function (5th ed.). New York: McGraw-Hill. Ceruminous Glands, p. 204 (220). ISBN 978-0-39-099995-5.
^ abPathology of Ceruminous Gland Tumors of the External Auditory Canal at eMedicine
Ceruminousglands are specialized sudoriferous glands (sweat glands) located subcutaneously in the external auditory canal, in the outer third. Ceruminous...
effective sweat glands in hoofed animals, such as the camels, donkeys, horses, and cattle. Ceruminousglands (which produce ear wax), mammary glands (which produce...
A ceruminous adenoma is a benign glandular neoplasm which arises from the ceruminousglands located within the external auditory canal. These glands are...
glands of the human body There are several specialized glands within the human integumentary system that are derived from apocrine or sebaceous gland...
apocrine glands include the ciliary glands (glands of Moll) in the eyelids; the ceruminousglands, which produce ear wax; and the mammary glands, which...
sweat, salivary, mammary, ceruminous, lacrimal, sebaceous, prostate and mucous. Exocrine glands are one of two types of glands in the human body, the other...
only partially degraded by proteasomes. This effect is localized to ceruminousgland membranes. Because the adenine containing allele protein product is...
Ceruminous adenocarcinoma is a malignant neoplasm derived from ceruminousglands of the external auditory canal. This tumor is rare, with several names...
various functions including lubrication and protection ceruminousglands, lacrimal glands, sebaceous glands and mucus Lymphatic system return lymph to the bloodstream...
[citation needed] |} The endodermal cells primarily generate the lining and glands of the digestive tube. There are nerve cells, also known as neurons, present...
glands in their external ear canals. In this location, they are referred to as ceruminousglands. The ear canals also have numerous sebaceous glands....
and localized in apocrine glands, including in the axilla, the ceruminousglands in the auditory canal, and in the mammary gland. A single-nucleotide polymorphism...
Pleomorphic adenoma (or benign mixed tumor) is a common benign salivary gland neoplasm characterised by neoplastic proliferation of epithelial (ductal)...
ISBN 978-92-832-2412-9. Thompson LD, Nelson BL, Barnes EL (Mar 2004). "Ceruminous adenomas: a clinicopathologic study of 41 cases with a review of the literature"...
– same as a pilar cyst, a familial cyst of the scalp Odontogenic cyst Ceruminous cyst (ear) Chalazion cyst (eyelid) Mucous cyst of the oral mucosa Nasolabial...
non-malignant adnexal neoplasm that develops from apocrine or eccrine sweat glands and can be identified histologically by cystic, papillary, and ductal invaginations...
pigment can also be excreted by glandular cells in apocrine and ceruminous sweat glands, as well as breast and prostate tissue. This results in darkly...
the waveform of the sound. Cerumen (ear wax) is produced by ceruminous and sebaceous glands in the skin of the human ear canal, protecting the ear canal...
characterised by greasy skin, debris adhering to the folds of the face and nose, ceruminous otitis externa, secondary bacterial folliculitis and Malassezia dermatitis...
be considered in the differential diagnosis, including paraganglioma, ceruminous adenoma, metastatic adenocarcinoma, and meningioma. The tumor must be...
paraganglioma, choroid plexus papilloma, middle ear adenocarcinoma, and ceruminous adenoma. Wide excision is the treatment of choice, although attempting...
temporal bone. The skin surrounding the ear canal contains ceruminous and sebaceous glands that produce protective ear wax. The ear canal ends at the...
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