facial mole removal

Pigmented nevus is a more common benign lesion on the skin, and about 40% occurs in the face. Generally no treatment is needed, but frequent irritation should be avoided. Treatment of diseases: pigmented nevus Indication Syzygotic fistula should be considered in areas that are susceptible to irritation and pigmentation in the lips, nose, etc. If pigmentation sputum is rapidly enlarged, pigmentation is deepened, itching, ulceration, bleeding and melanin spots appear on the skin around the sputum, symptoms such as malignant transformation should be considered, and it is necessary to promptly remove the disease. Once malignant changes occur, it needs to be extensively removed in time. Preoperative preparation Prepare the skin as usual. For cases with suspected malignant changes, preparations for frozen sections should be prepared before surgery, and surgical plans for repairing wounds after extensive resection of lesions should be made. Surgical procedure Incision The design of the incision depends on the size of the lesion. For patients with small lesions, a fusiform incision can be made according to the direction of the dermatoglyph on the normal skin of 1 to 2 mm outside the edge of the ankle. If the range of pigmented nevus is larger, it can be removed by staged resection. That is, in the first operation, only fusiform resection is performed within the range of pigmented nevus, and the lesion is cut 1/2 to 1/3, and sutured. After 3 to 6 months, the second resection and suture were performed. Generally, after 2 to 3 resections, the purpose of complete resection can be achieved. However, this Law does not apply to border crossings (except for juvenile junctions). A wide range of pigmented nevus can be removed all at once, and a full-thickness skin flap or a flap can be repaired on the wound surface. It should be noted that malignant changes can occur at the junction, so an incision should be made on normal skin more than 3 mm beyond the edge of the ankle, and it should be removed all at once. 2. Excision of diseased tissue According to the design of the incision, the skin layer is cut directly to the subcutaneous tissue layer, and then the subcutaneous tissue layer is sharply separated, and the diseased tissue is excised. 3. Wound treatment After complete hemostasis, the subcutaneous tissue layer on both sides of the wound edge was sneaked apart, and then the subcutaneous tissue and skin were sutured separately. If the wound surface is large, it can not be directly sutured, and it can be repaired by free skin graft or adjacent flap. There are also applications in which skin expansion is performed by expanding the skin defect adjacent to the skin tissue to create a new flap transfer to repair the defect of the skin defect. When this method is used, the first stage of surgery is a skin expander. Two weeks after the operation, water was injected into the skin expander, and the skin tissue gradually expanded. The general expansion period was 2 months, and the second operation was performed at intervals of 2 weeks after the last water injection. The second operation was a flap transfer surgery. At this point, the facial pigmentation was removed and the newly formed flap was immediately transferred to cover the defect of the skin defect after the resection. complication The main complications were postoperative infection, free skin necrosis and partial necrosis of the flap.