NU673 COMPREHENSIVE EXAM 1 2024

o Basal cell carcinoma (BCC) o Squamous cell carcinoma (SCC) o Melanoma (most lethal) - name the 3 major skin cancers basal cell carcinoma - 80% of skin cancers Shiny and translucent, they grow slowly and rarely metastasize squamous cell carcinoma - Comprises 16% of skin cancers Crusted, scaly, and ulcerated, they can metastasize melanoma - Comprises 4% of skin cancers Rapidly increasing in frequency, they spread rapidly Epidermis - Thin, avascular keratinized epithelium consisting of the outer stratum corneum and an inner cellular layer, the stratum basale and the stratum spinosum. Dermis - Dense layer of interconnecting collagen and elastic fibers containing sebaceous glands, sweat glands, hair follicles and most of the terminals of the cutaneous nerves. subcutaneous tissues - also known as fatty tissue Cyanosis - can indicate decreased oxygen in the blood or decreased blood flow in response to a cold environment. sebaceous glands - produce a fatty substance secreted onto the skin surface through the hair follicles. These glands are present on all skin surfaces except the palms and soles Eccrine glands - widely distributed, open directly onto the skin surface, and by their sweat production help to control body temp. apocrine glands - found chiefly in the axillary and genital regions and usually open into hair follicles. Responsible for adult body odor. o Asymmetry o Border irregularity o Color variations o Diameter 6mm o Evolving or changing rapidly in size, symptoms, or morphology o EFG- elevated, firm, growing - ABCDE rule necrosis - Local redness of the skin warns of impending _______