PPT-Skin pathology Skin diseases are common and diverse, ranging from irritating acne to

Skin pathology Skin diseases are common and diverse ranging from irritating acne to lifethreatening melanoma Either intrinsic to skin or systemic diseases involving many tissues or genetic syndromes such as neurofibromatosis. Giana Bowers. Mr. Case. Skin Cancer. Most common cancer in US. Fastest increasing cancer in US. 1,000,000 people have some form. of skin cancer . Skin Cancer. Three main types. -- basal-cell. -- squamous-cell. 1. What, in general, is a melanoma?. A tumor of melanin-forming cells (. melanocytes. from the basal layer of the epidermis.). Typically a malignant tumor associated with skin cancer, it’s the most dangerous type of skin cancer (could spread and become lethal.). Your . skin is considered the largest organ in the human body.. Your . skin is made up of three major layers - epidermis, dermis, and hypodermis (also called the subcutaneous tissue).. Your . skin loses about 30,000 to 40,000 dead skin cells from the surface almost every minute, even though you do not see it happening.. UV light from the sun or sunbeds. Infrared rays- causes the heat that we feel. This does not damage the skin. . UVA. - causes sunburn (you cannot feel it- hence burning on cool days). This is the main cause of cancer.. Introduction. Skin care begins with understanding its underlying structure and basic needs. You must recognize adverse conditions. Inflamed skin. Diseases. Infectious skin disorders. Skin care specialists are in high demand. N. K. . Kansal. Associate Professor. Malignant tumor. A . tumor is an abnormal mass of tissue - growth of which exceeds & is uncoordinated with that of normal tissue with capacity to . metastasize. Prepared by Mr. Shoup. Skin. In the complex human . body:. Largest organ of the body . 1 . square inch of skin on the hand . sprouts. 30 hairs . H. olds . 9 feet of blood . vessels . 134 . yards of . Benign . epidermal . tumors. Premalignant . epidermal . tumours. Malignant epidermal . tumours. Tumours. of the dermis. Benign epidermal tumors. Seborrhoeic. . keratosis. . un-related . to sebaceous . Abu-Khalaf. 1) . Non-Melanoma Skin Cancers . 1. BASAL CELL CARCINOMA ( Rodent Ulcer ) . * . most common form of skin cancer. Pathophysiology • malignant proliferation of. basal keratinocytes of the epidermis . Melanoma originates in the cells of the skin that make pigment, called melanocytes.. Melanomas look like moles on the skin. When diagnosed early, melanoma is easily cured by simple outpatient surgical excision. History. Acne may occur at any age, but is more common in the teenage years, and may persist well into adulthood. Twenty per cent of affected individuals will develop severe acne resulting in scarring.. Epidermoid Cyst. Common, affecting young and middle age adults. Usually seen on the head, neck and trunk. Often can identifiy a punctum. Cyst contains keratin. Superficial Epidermal cyst. 5 cm. Fluid filled. (2). By . Dr. Ahmed Ali . A. bdelrahim. Lecturer of Plastic Surgery. Malignant Melanoma. Outlines. Epidemiology. Incidence. Risk factors. Precancerous . lesions. Diagnosis of melanoma. Growth phases. Skin Tumors. The skin has three layers:. 1. The epidermis . 2. The dermis . 3. The deep . subcutis. . . Cutaneous. disorders are extremely common and range from irritating acne to life-threatening melanoma. .