Granuloma annulare(GA) is an inflammatory benign cutaneous disease of unknown etiology that may manifest different clinical features. The most common presentation or classic form of the disease is manifested as flesh colored, annular grouped papules, commonly involving the hands and feet. Various skin injuries and infections have been reported to trigger GA, including insect bites, warts,...

Nevus sebaceous is a congenital, benign hamartomatous lesion, characterized by a yellowish to skin-colored, hairless, verrucous plaque on the head and neck region. In later life, a secondary tumor, either benign or malignant, can develop within nevus sebaceous. Eccrine poroma developing on nevus sebaceous is extremely rare. There are few case reports of eccrine poroma developing within nevus se...

background spitz nevus is an infrequent acquired melanocytic nevus. there is still a challenge for dermatopathologists in distinguishing spitz nevus from malignant melanoma particularly in adults since there is no immunohistochemistry or molecular markers which differentiate spitz nevus from melanoma. objectives the aim of this study is to make clear what clinico-histopathological features of s...

Linear epidermal nevus is an uncommon diagnosis of benign lesions of the oral cavity. It is characterized by a congenital malformation arising from the ectoderm cells, which are arranged according to a typical linear configuration known as Blaschko's lines. We report a case of linear epidermal nevus of oral cavity in a 51-year-old lady or woman. The linear epidermal nevus of the oral cavity, al...