logo Benign non-melanocytic skin lesions key points test

Skin lesions

Benign non-melanocytic skin lesions key points test

Match the name of the naevus with the description Mix and match: Epidermal naevus : A line of warty brown papules and plaques Sebaceous naevus :A hairless yellowish bumpy plaque Haemangioma : A strawberry-like nodule or plaque Vascular malformation : A dark red patch Match the cell of origin with the name of the skin lesion Mix and match: Keratinocyte: Seborrhoeic keratosis Eccrine: Syringoma Fibroblast: Dermatofibroma Adipose cell: Lipoma Which of the following statements are correct? #! Seborrhoeic keratoses (basal cell papillomas) appear as stuck-on warty plaques # Epidermoid cysts are pedunculated papillomas filled with loose collagen # Syringomas produce excessive tears #! Proliferative haemangiomas usually resolve Explanation: Epidermoid cysts are walled-off cavities with an squamous epithelial lining and filled with keratin. Syringomas are histologically a proliferation of sweat duct structures forming a tadpole-like appearance. Proliferative haemangiomas arising in childhood (strawberry naevi) generally resolve over several years. Seborrhoeic keratoses (basal cell papillomas) appear in later years as stuck-on warty plaques.