(1) basal cell carcinoma

Occur in the 50-60 year-old male more than female. part of a rich sebaceous gland and epidermis are aware of the regular sunlight exposure to the most common sites, such as Alar, and outside troops. frontal temporal, neck and other places, about 10% were in the trunk. Early basal cell carcinoma is slightly higher surface to a light yellow or pink Summary smooth surface, with telangiectasia. Texture hard, often without pain or tenderness. If the lesion in the deep face, after a long development phase, the surface Flake scaling, crusting after repeated. DIP, surface erosion, bleeding. When the lesion is increasing, its central form a small ulcers, ulcers uneven edge, it seems insect eroding. Some pigmented basal cell carcinoma associated with this smaller pigment disseminated in the lesions and fused brown. black or blue pigment known as basal cell carcinoma, and malignant melanoma easy to be confused. But according to its long duration, slow, often without regional lymph node metastasis and other features that will make identification with melanoma. For biopsy should be diagnosed clinically indistinguishable. The other is relatively rare in a tough spot disease basal cell carcinoma, the fiber LESION was smooth, very similar to scar tissue. This surface is no obvious telangiectasia, ulcers or uplift such change, but the border is not clear; Head and neck lesions on the trunk were more often diagnosed in infiltration has been widespread. Fortunately, this type of person is extremely rare. Basal cell carcinoma development has been slow, mainly in the form of local invasive growth that occurred in Alar, the ear can be basal cell carcinoma invasion, cartilage damage, corrosion can occur in the scalp involved subdural skull. Although DOMARUS so it has been reported cases of the disease and a shift in death. But most basal cell carcinoma no regional lymph node metastasis, metastasis is rare.

(2) squamous cell carcinoma

Early basal cell carcinoma and squamous cell carcinoma is similar to the general erythema lesions. associated with different levels of scales and crusts form fractal scaling clinical often difficult to identify. However, squamous cell carcinoma often in the elderly Hyperkeratosis, chronic ulcers and lesions on the basis of burn scars developed from the performance of red, hard nodules above the surface; When the surface of the keratinous layer healing after shedding 15/16, But soon the crusts are peeling and erosion, accompanied by 46, oozing, crusting initially erosion can be healed. But soon crusts falling further and deep infiltration when it is slightly raised risk of ulcer formation, basal uneven, was red granular, granulation tissue hyperplasia and diarrhea, esophageal cancer is often accompanied by secondary infections stench of secretion. Part of squamous cell carcinoma in a fast-growing and prominent surface, a typical dish Synchronized block objects. There was some kind uplift or verrucous mushroom, surface ulcers, said nipple - squamous cell carcinoma. And basal cell carcinoma, squamous cell carcinoma development fast and easy to transfer to regional lymph nodes. With its transfer rate of tumor, and 70 squamous cell carcinoma of head and face to ear, After about 5% of those ears and neck lymph nodes, lymph node metastasis occurred in both groups were about 20% block. extremities were inguinal lymph node metastasis rate of 33%; hematogenous metastasis rare occurrence. The most common sites of metastases to the lung.

(3) skin carcinoma in situ

Bowen first described the disease in 1912, it called Bowen's disease. Some scholars have reported that the disease occurs in 60-70 years old, male to female ratio 0.8"1.2:1. The most common site to the head and neck, accounting 44%"54%. It also occurs in the hands, torso, buttocks, anus and genital tract, oral mucosa and a bed and other places. Occurred in the sunlight revealed the location of about 72%, most of them single, but at 2-3 lesions. Dark red or reddish patches performance for the slightly raised lesions of the face of many scales and crusts. lesion was gradually expanding the circle or ring papules margin, and with a thick callus gray or brown, not falling If forced stripping, appeared fine granular or small papillary moist surface, a slight stinging sensation local. Course of slow, sustainable ranged years, rarely ulcers, can develop into invasive carcinoma and 20% -30%. About 20% of the outbreak of the regional lymph node metastasis. Other organs associated with skin carcinoma in situ carcinoma was poor.

(4) Foreign Paget's disease of breast

Paget's disease was first described in 1895 and the areola eczema carcinoma, a famous ֮. Sweating by the Department of adenocarcinoma of the disease caused by disseminated to the epidermis, it occurs in the perianal, perineal. axillary sweat glands such as genital and developed the site. The lesion of a single, a few more fat. Paget's disease of the breast with similar lesions clear boundary diameter ranging from 0.5"10cm. was brown or brown, the central flushing, erosion, surface and with little or crusts were performed. Can occur in the perianal and perineum was like verrucous or protuberance was papilloma, patients are often local itching, irritation or burning. rup tured after hemorrhage. Slow development of the disease may be confined to a few local, but also for the development of invasive cancer which led to a fatal shift. High local recurrence after surgical resection, the relapse rate was 31%"61%.

This article was posted on 2007-02-27