Onicomatricom

Onicomatricom Subunghiala Onicomatricomul is a tumor of the fingers and feet. The etiology of these tumors is not known. It criminalizes hamartoamele mycoses and that stimulates nail matrix. Onicomatricomul home was considered benign, but malignant potential today can not be completely excluded.
It is a painless tumor. It manifests itself by changing color and thickness of the nail. Previous history of onychomycosis is an important factor. Consisting of medical therapy is excision. After removing the nail tumor develop normally.
Pathogenesis and causes
Onicomatricomului etiology is still unknown, they usually report a history of local trauma. Onychomycosis is most commonly associated with this tumor was discovered in history half of the patients. Another theory proposed as the origin fibroproliferativa classify tumors by stimulating nail by hamartoame. Electron theory is supported by studies associating the origin of the tumor matrix.
Signs and symptoms
Medical history may be nonspecific because the clinic is a painless proliferation. Patients may describe changes in color and thickness of the nail. Onychomycosis can be important in history, and history of local trauma or family history of cancer. Physical examination. The most commonly occurs in the hand fingers. Percentage of injuries to fingers 1, 2, 3, 4 is 5%, 16%, 61% and 16%. Have been reported and multiple tumors in different fingers. The tumor is characterized by the clinical tetrad: nail discoloration, thickening of longitudinal cracking and bleeding by bending. Avulsion of the nail matrix origin exhibit filiform tumor.
Diagnosis
Histological examination. Fibroepiteliala tumor shows two areas based on anatomical location of proximal and distal. Proximal zone, proximal nail fold under starts at the root of the nail and extends to the cuticle. This corresponds to the tumor base and is composed of deep epithelial intussusception fibrillary stroma. Distal zone corresponds lunulata and is composed of multiple tumor digitatii and cavities filled with serous fluid. The differential diagnosis is made with the following conditions: warts, squamous cell carcinoma, fibrokeratoame, fibroids periunghiale, Bowen disease, keratoacanthoma, yellow nail syndrome, onychomycosis.
Treatment The practice of surgical excision of the nail. There is the possibility of developing a malignant tumor. After excision, the nail will grow normally