Acquired Cholesteatomas are much more common, and they typically occur in older children and young adults. Cholesteatomas can be congenital (primary) or acquired. Although they are not true neoplasm, but clinically they can mimic malignant neoplasm because of their propensity to destroy surrounding tissue and recur after excision. The term Cholesteatoma is actually a misnomer as these masses rarely contain cholesterol. Hence excision biopsy with histo-pathological study becomes necessary for confirmation of diagnosis. Unfortunately, it can be difficult at times to differentiate small Cholesteatomas from chronic middle ear inflammation on CT Scan alone. CT scan can help in the diagnosis of Cholesteatomas. Extradural lesions most commonly involve the middle ear cleft involvement of the mastoid or external auditory canal is less common. They may present intradurally or extradurally. In the middle ear they usually present in third or fourth decade. Ĭholesteatomas are lesions formed from keratinizing stratified squamous epithelium. Nevi of various types can occur in the auricle or less commonly in canal. Nevi of any size and shape or degree of pigmentation can occur in head and neck region and they are more or less hairy. Rhabdomyosarcomas of the middle ear and mastoid are the most common malignant aural neoplasm, although they account for less than 10% of all cases of head and neck Rhabdomyosarcomas. They are the most common soft-tissue malignancy in the pediatric age group. Įmbryonal Rhabdomyosarcomas, a highly malignant tumor of striated muscles are derived from primitive mesenchymal cells. Almost all middle ear adenomatous tumors (“adenoma” and “carcinoid”) show evidence of neuro-endocrine differentiation. Despite previous assertions of benignancy, the findings suggest that Carcinoid tumors of the middle ear are indeed a low-grade malignancy with documented metastatic potential. Ĭarcinoid tumors of the middle ear are an infrequent cause of a middle ear mass. They are malignant tumors arising from epidermis of skin in elderly persons. They are more common in ear pinna followed by ear canal. Squamous cell carcinomas of head and neck accounts for one-fourth of total squamous cell carcinomas. They are the result of chronic otitis media and may involve the peri-tympanic space, mastoid cavity and petrous part of the temporal bone. Ĭholesteatomas of the external ear canal are composed of a cystic mass of keratinized squamous epithelium overlying an area of bony sequestration in the inner half of canal. External ear infections, called chronic otitis externa, are the most common cause of this irritation. Polyps usually arise from constant irritation of the ear canal or eardrum. Īural polyps are non-cancerous, fleshy growths in the outer ear canal or eardrum. The ear can be divided into external, middle and inner segments. They rarely cause mortality but quality of life is definitely affected. Adolescents/children more affected than adults for benign lesions while reverse was true for malignant lesions.Ī number of diseases can involve the ear and some of these can pose special problems at this site. Right side masses were more common than left side males were more affected than females. In malignant lesions Squamous cell carcinoma (7) was the commonest followed by Embryonal rhabdomyosarcoma (1) and in benign lesion, Carcinoid tumor (1) and Nevus (1) were diagnosed on histo-pathological examination. Most common lesion was found to be inflammatory Polyps (20), followed by Cholesteatomas (12) and chronic non-specific inflammations (7), Abscess (1). These masses were further classified as inflammatory, benign and malignant lesions and the frequency of their occurrence in saurashtra region (Jamnagar, GUJARAT), their age and sex distribution were observed. A study of 50 patients, attending Ear, Nose and Throat department, was done and specimen collected from them and subjected to histopathological examination. Therefore incisional or excisional biopsy with histo-pathological study is a must in all types of small masses in ear. ![]() Study of mass in ear was undertaken with the aim that clinical diagnosis was in most but not all cases consistent with the histo-pathological diagnosis.
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