Background and aim: Skin cancer is the most common human cancer. Ultraviolet radiation is now recognized as the most important risk factor for skin cancer development. Light skin colored individuals that spend more time outdoors in day are more susceptible to disease. In this study skin cancer situation in Yazd (located in a hot, dry and desert area) was reviewed.Materi...

Recently we described skin tumors driven by skin-specific expression of Zmiz1 and here we define keratoacanthoma pathobiology in this mouse model. Similar to human keratoacanthoma development, we were able to segregate murine keratoacanthomas into three developmental phases: growth, maturation, and regression. These tumors had areas with cellular atypia, high mitotic rate, and minor local invas...

Iii their original description of the induced skin tumors of the rabbit, Yamagiwa and Itchikawa (14) detailed several morphological types of neo plasm with varying life histories. These tumors have been analyzed even more closely by Rous and Kidd (1@), who have shown that a series of graded lesions are produced by applications of either tar or pure hydrocarbons, ranging from warts that re gress...

Dermoscopy is increasingly used to diagnose non-melanocytic skin tumors. Basal cell carcinoma presents some highly suggestive structures for its diagnosis. The presence of chrysalides-like structures is also frequently found in other benign and malignant skin tumors, and their significance in basal cell carcinoma has yet to be determined. HPV is a virus with oncogenic potential and its involvem...

OBJECTIVE To report a case of malignant chondroid syringoma, a rare skin tumor at Joliot Curie Cancer Institute in Dakar. RESULTS We report a case of malignant chondroid syringoma of the deltoid and axilla in a 53year old patient. Malignant chondroid syringoma is an extremely rare tumor of the sweat glands. It is included in myoepithelial tumors of the skin. It has an epithelial component wit...

OBJECTIVE The incidence of melanoma is increasing worldwide, prevalence of malignant epithelial tumors is high and early diagnosis reduces significantly the morbi-mortality of these diseases. The purpose of the study is to estimate the prevalence of pre-malignant and malignant skin lesions and to determine the sensitivity and specificity of screening tests. METHODS A cross-sectional populatio...

Background: Large recurrent phyllodes breast tumors are often malignant. Therefore, when taking the surgical decision, a simple mastectomy and immediate reconstruction must be considered. Case presentation: The patient, aged 40 years, with benign tumor in left breast, having recurrence 2 years after, 4–7 cm conglomerate masses, was subjected to skin-reducing mastectomy, silicone mammary implant...