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Epidermal cysts are benign tumors commonly known as sebaceous cyst and frequently found throughout the body. These lined with true, stratified-Squamous epithelium, derived from hair follicle. They can grow of any size maybe get infected over a period time. is usually asymptomatic mostly presents slowly growing painless mass. most confused other like dermoid but histopathological examination pro...

INTRODUCTION Cutaneous epidermal cysts are common lesions, but fortunately, malignant transformation of their epithelium is rare. There are only a few cases mentioned in recent literature, mostly occurring in epidermal cysts in the head and neck region. CLINICAL PICTURE We present a case of malignant transformation in a long-standing buttock epidermal cyst, presenting a month after trauma to ...

Ancient hematoma is one of several lesions that require differentiation from soft tissue neoplasm. This hematoma, named as such by Mentzel et al. [1], is a benign soft tissue tumor surrounded by a fibrous pseudocapsule with inflammatory cells present inside the capsule that gradually expands in size. Chronic expanding hematoma, designated by Reid et al. [2], is a hematoma that increases slowly ...

BACKGROUND Dermoid cysts of the auricular area are extremely rare. We report on six cases of auricular dermoid and epidermoid cyst, and differentiate dermoid cyst from epidermal cyst along with a review of the literature. METHODS Three cases involved a gradually enlarging mass of the superior and anterior aspect of the helix of their ear. Another two cases were located in the posterior aspect...