Hairy tumor is a rare and dangerous type of tumor disease that arises from the hair follicle (hair follicle). Up to 70% of hairy tumor cases occur in women. In men, such a tumor is extremely rare and is associated with drug use - opiates affect the male hormonal system. During the first year of life, a hairy tumor is found in one case per 6-15 thousand newborn girls. Hair tumors primarily affect the upper part of the body and usually develop in the form of rapidly growing nodules with a diameter of 1-2 cm or more, resembling conglomerates of polyps. The primary localization of tumor formation is observed in the upper half of the body. Characterized by a rapid increase in the size of the affected areas of the body due to extensive hyperemia (redness) and ulceration of the skin and underlying tissues as a result of the destructive growth of the tumor. Damage to internal organs is rare. Thus, an ectopic tumor of the hair sac of the maxillary or maxillary sinus is manifested by itching of the root of the nose in its outer area, shortness of breath, and polyadenopathy. In this case, hearing loss is pronounced, headache and soreness of the root of the nose appear. Diagnosis of malignant tumors of the scalp, especially small forms, is difficult and accessible to an experienced morphologist only with a biopsy, but the growth characteristics of the tumor node on the skin must always be taken into account. The study of biopsy material makes it possible to make a diagnosis based on the existence of intraepithelial trichobezoars (“nodular cords”) or trichylems (excretory ducts of the hair follicles). Epithelial hair tumor