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A ceruminous adenoma is a benign glandular neoplasm which arises from the ceruminous glands located within the external auditory canal. These glands are found within the outer one third to one half of the external auditory canal, more common along the posterior surface; therefore, the tumor develops within a very specific location.
Chondrodermatitis nodularis chronica helicis (CNCH) is a small, nodular, tender, chronic inflammatory lesion occurring on the helix of the ear, most often in men. [2]: 610 it often presents as a benign painful erythematous nodule fixed to the cartilage of the helix or antihelix of the external ear. [3]
Neuroendocrine adenoma middle ear (NAME) is a tumor which arises from a specific anatomic site, the middle ear. [1] NAME is a benign glandular neoplasm of middle ear showing histologic and immunohistochemical neuroendocrine and mucin-secreting differentiation (biphasic or dual differentiation).
This is an uncommon lesion, usually affecting young patients (mean age, 30 years), with a male to female ratio of 2:1. The middle ear is involved, although it may extend to the external auditory canal if there is tympanic membrane perforation. [1] [2] [3]
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 lesions presents as a nodule or papule, either sessile or pedunculated. They may be soft or have a cartilaginous structure. By histologic examination, it is a recapitulation of normal external auricle. There will be skin, cartilaginous structures, and cartilage (although the last is not seen in all variants of this disorder).
A single lesion on the front part of the ear is usually the initial sign of pseudocyst of the auricle. Pseudocysts of the auricle appear as flesh-colored, nontender, noninflammatory cystic lesions and progress gradually over a 4- to 12-week period. Their diameters range from 1 to 5 cm. Usually, the lesions start off soft and get firmer with time.
Surfer's ear is the common name for an exostosis or abnormal bone growth within the ear canal. They are otherwise benign hyperplasias (growths) of the tympanic bone thought to be caused by frequent cold-water exposure. [1] Cases are often asymptomatic. [1] Surfer's ear is not the same as swimmer's ear, although infection can result as a side ...