Diseases of the skin and subcutaneous tissue (dermatology)

Sebaceous adenoma (sebaceous adenoma): causes, symptoms, diagnosis, treatment

Adenoma of the sebaceous glands (syn: greasy adenoma) occurs usually in the form of a solitary nodule with a smooth surface of a yellowish hue, more often on the skin of the scalp or face, but can have any localization, particularly on the skin of the scrotum.

Sebaceous nevus: causes, symptoms, diagnosis, treatment

The sebaceous nevus is a hamartoma of the sebaceous glands, usually existing from birth, however, cases were recorded when this developmental defect was latent until the puberty period and only with the onset of the latter manifested itself clinically.

Malignant pilomatricoma: causes, symptoms, diagnosis, treatment

Fungi-positive pilocarcoma (syn: pelomatocarcinoma, calcified epitheliocarcinoma, malignant pilomatrixoma, trichomatous carcinoma, pilomatrix carcinoma) is a very rare tumor that appears as a nodule usually on the skin of the trunk or extremities in middle-aged people and has no pathognomonic clinical signs.

Cystic epithelioma: causes, symptoms, diagnosis, treatment

Cystic epithelioma (syn: proliferating trichylemal cyst, pilar tumor) is a fairly rare tumor, mainly occurring in individuals older than 40 years, although the age range is quite wide - from 26 to 87 years.

Inverting follicular keratosis (follicular keratoma): causes, symptoms, diagnosis, treatment

The first description of the tumor of inverting follicular keratosis (follicular keratoma) was made by Helwig in 1954. Since then, disputes about the eligibility of this new growth to form an independent nosological form have not ceased.

Pilomatricoma: causes, symptoms, diagnosis, treatment

Pilocimacoma (synonymous necrotizing calcified malerb epithelioma) occurs more often in childhood and adolescence, mostly on the face or in the shoulder region, in the form of a solitary tumor reaching a few centimeters, covered more often by normal skin with a smooth surface protruding above the skin, very dense consistency. It grows slowly over the years, does not ulcerate.

Trichopholliculoma: causes, symptoms, diagnosis, treatment

Trichophiliculoma is rare, it is not clinically recognized, and is usually a histological finding. The age of patients varies from 11 to 77 years (an average of 47 years), several women predominate.

Tricholemmoma: causes, symptoms, diagnosis, treatment

Tricholemoma clinically resembles basal cell or seborrheic keratosis and, as a rule, is a histological finding. The tumor is usually solitary, small in size with predominant localization in the face, somewhat more common in men than in women, the average age of the patients is 59 years.

Hair follicle sheath acantoma: causes, symptoms, diagnosis, treatment

The name of the tumor was given to A. Mehregan and M. Brownstein in 1978. Clinically, the tumor has the form of a nodule 0.5-1 cm in size with a central occlusion. The age of the patients is 30-70 years, the frequency in men and women is approximately the same, the localization is the skin of the upper lip, forehead, neck, and the auricles.

Hair cyst: causes, symptoms, diagnosis, treatment

Hair cyst [syn: trichylemal (pilar) cyst, follicular cyst, sebaceous cyst] may be single or multiple, especially in women older than 40 years.

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