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Day 2 Pathology Notes
Acne vulgaris - Chronic inflammatory disease caused by the overproduction of sebum around the hair shaft comedo - Noninfected lesion composed of sebum and keratin in hair follicle Closed comedo: whitehead Open comedo: blackhead seborrhea - Overproduction of sebum Seborrheic keratosis - Benign skin growth having a waxy appearance Varied colors Common in elderly anhidrosis - Condition of lacking sweat in response to heat diaphoresis - Profuse sweating hyperhidrosis - Excessive sweating in one area or over the whole body folliculitis - Inflammation of hair follicles Trichomycosis axillaris - Superficial bacterial infection of hair shafts in areas with extensive sweat glands, such as armpits hirsutism - Excessive body and facial hair in women, usually occurring in a male pattern alopecia - Partial or complete loss of hair onychomycosis - paronychia - Fungal infection of nail
albinism - Genetic condition characterized by lack of pigment in skin, hair, and irises of eyes chloasma - Brownish spots on face May occur during pregnancy, and disappear after delivery of infant ecchymosis - Large, irregular purplish discoloration due to bleeding under the skin purpura - Multiple purple discoloration on skin due to bleeding underneath the skin petechiae - Small, pinpoint hemorrhages less than 2 mm in diameter hematoma - Usually due to injury Swelling of clotted blood trapped in tissues Blood is reabsorbed crust - A scab; collection of dried serum and cellular debris abscess - Closed pocket containing pus Due to bacterial infection purulent - Producing or containing pus exudate - Fluid leaking out of an infected wound Capillary hemangioma - Soft, raised, pink or red vascular birthmark Benign tissue mass Port-wine stain - Flat vascular birthmark made up of dilated blood capillaries Creates reddish-purple discoloration dermatitis - Inflammation of the skin eczema - Recurring dermatitis characterized by redness, itching, and dryness pruritus -
scabies - Skin infection caused by itch mites cicatrix - Normal scar lipoma - Benign fatty tumor located between the skin and muscle layer papilloma - Benign wart-like growth on epithelial tissue or elsewhere in the body Actinic keratosis - Precancerous skin growth occurring on sun-damaged skin Lack of treatment may lead to cancer Basal cell carcinoma - Malignant tumor of basal cell layer of epidermis Rarely spreads Squamous cell carcinoma - Malignant tumor of squamous cells of epithelium Can spread quickly to other body systems Malignant melanoma - Occurs in melanocytes Initial symptoms are change in the size, shape, or color of a mole Burns - Injury caused by heat, flame, electricity, sun, chemicals, or radiation Severity described according to the percentage of the total body skin surface affected or by depth or layer of skin involved
