hair root sheath carcinoma
Introduction
Introduction to hair root sheath cancer Trichilemmalcarcinoma was reported by Headinton in 1976, but its diagnosis has not been recognized by pathologists for many years. A series of recent reports have confirmed that the disease is a hair follicle tumor. Occurs in the elderly over the age of 50, no gender differences. Metastasis can occur, with typical lesions typically less than 3 cm. Misdiagnosed as keratoacanthoma due to rapid tumor formation. basic knowledge The proportion of illness: the incidence rate is about 0.002% - 0.007% Susceptible people: good for middle-aged people over 50 years old Mode of infection: non-infectious Complications: squamous cell carcinoma
Cause
Hair root sheath cancer etiology
The disease occurs in areas where the face, head or ears are susceptible to sun damage. Occurs in the elderly over the age of 50, no gender differences. Clinically, the lesion may be nodular or plaque-like, with a grayish-white surface and excessive keratinization or a reddish color with a smooth surface or ulceration.
Prevention
Hair root sheath cancer prevention
Take an initiative to do an anti-cancer check every year. Everyone has cancerous genetic cells, but not everyone will get cancer. But when your immune function is low, normal cells are reduced and cancer cells are increased. People with a family history of cancer are advised to check the body twice a year; healthy people are advised to check it once a year.
Complication
Hair root sheath cancer complications Complications squamous cell carcinoma
Squamous cell carcinoma.
Symptom
Hairy root sheath cancer symptoms common symptoms eyebrows become white nodules
The disease occurs in the face, the head or ear is susceptible to sun damage, and occurs in the middle-aged and older people over 50 years old. There is no gender difference. The clinical lesions can be nodular or plaque-like, and the surface is grayish white and keratinized. Excessive or reddish and smooth surface, or ulceration, can occur metastasis, typical lesions are usually less than 3cm, the disease is easily misdiagnosed by dermatologists as proliferative actinic keratosis, basal cell carcinoma or squamous cell carcinoma Even misdiagnosed as keratoacanthoma because of rapid tumor formation.
Examine
Hair root sheath cancer examination
Histopathology: a tumor with a lobulated hair follicle as the center. The atypical epithelium replaces one or more hair follicle epithelial sheaths, and the tumor cells are hirsatral keratinized, showing a transparent cytoplasm of PAS-positive amylase-resistant (Table) 1), the tumor is lobulated, the surrounding cells are arranged in a grid shape, and invade the dermis. The normal epidermis is inserted between the affected hair follicles, and the tumor cells are atypical and the nuclear division is obvious.
Diagnosis
Diagnosis and identification of hair root sheath cancer
According to the clinical manifestations, the characteristics of skin lesions and histopathological features can be diagnosed.
It should be differentiated from proliferative actinic keratosis, basal cell carcinoma or squamous cell carcinoma, keratoacanthoma.
