Dermatology and STD's Flashcards
Blackened dots on the face
Comedone - acne vulgaris (proprionobacterium acnes)
Clear fluid blister <1 cm
Vesicle - herpes simplex (crops of painful vesicles on lips)
Clear fluid filled blister >1cm
Bulla - Pemphigoid (Large tense/deep bullae in older women refer to hospital)
Coalesced papules
Plaque - Psoriasis
Dark in colour due to excess melanin
Hyperpigmented - Nevi, melanoma
Dried serum or pus mixed with skin
Crust - Impetigo (Staph aureus/Strep Pyogene, honey-coloured crusts in and around lips and nose)
Flat lesion <1cm in diameter
Macule - Vitiligo
Flat lesion > 1cm in diamter
Patch - Pityriais versicolour (Fungus-malassezia furfur, skin scrapings show spaghetti and meatballs appearahce)
Lacy pattern on the mucosa in the mouth
Leukoplakia - Precancerous lesion
Lesion with complete epithelium loss
Ulcer - Squamous cell carcinoma (2nd MC, demarcated red scaling plaque –> nodule –> ulcer)
Lesion with incomplete skin loss
Erosion - Pemphigus (large flacced superficial bullae MC amoung Jewish people, refer to hospital)
Lesions running in a line
Linear - Psoriasis
Lesions confined to one area
Localized - Plantar warts (double stranded non enveloped DNA like HPV)
Lesions affecting entire body
Generalized - psoriasis
Lesions along a spinal nerve
Dermatomal - Herpes Zoster (double stranded enveloped DNA herpes type 3 virus)
Lesions in moist skin folds
Intertriginous - candidiasis
Lesions on cheeks/across nose
Malar SLE)
Lesions w/central depression
Umbilicated - molluscum contagiosum (double-stranded enveloped DNA pox virus, kids)
Loss of skin or underlying tissue
Atrophy - pregnancy striae
Narrow but deep crack in skin
Fissure - contact dermatitis
Pale in colour due to less melanin
Hypopigmented - vitiligo
Pus-filled blister
Pustule - chicken pox (crops of vesicles, pustules, crusts in trunk)
Raised lesion <1cm in diameter
Papule - dermatofibroma
Raised lesion >1cm in diameter
Nodule - basal cell carcinoma (pearly papule or non healing ulcer on face/nose, MC skin cance)
Red in colour
Erythematous - Measles (single-stranded enveloped RNA paramyxo virus, roseola, high fever, runny nose, conjunctivitis, Koplik spots)
Red raised nodule
Erythema nodosum - sarcoidosis
Ring-shaped
Annular - Ringworm (trichophyton/microsporum red itching circular lesions on trunk with serpiginous borders and clearing center )
Shaped like a coin
Nummular - Ecema
Snake-like border
Serpiginous - Ringworm
Thick skin with accentuated skin creases
Lichenification - chronic eczema
Transient red raised itching lesion
Wheal - Urticaria (IgE mediated hypersensitivity, elevated eosinophils)
Actinic keratosis
Dark struck-on lesions on face
Keloid
Hypertrophic scar tissue (MC in black population)
Nevus
Hyperpigmented lesion with round borders
Red oozing rash in flexures in infant
Acute eczema
Fish like scales on forearms, legs
Ichthysosis
Auspitz sign is seen in
Psoriasis
Ring like rash with healing center
Tinea corporis
Scaly ring like rash on head
Tinea capitis
Cafe au lait spots, coast of Maine (rough jagged edges) shape
Fibrous dysplasia
Furuncle
Red painful swollen dome shaped lesion around a hair follicle
Paronychia
Red swollen painful skin around nail
Phrynoderma
Dry rough skin with follicular plugging looking like toad skin
Keratosis Pilaris
Small spiky pin point papules on upper arms and thighs
White transverse lines on nails (Mee’s line)
Arsenical poisoning
Carbuncle:
Infection of several hair follicles seen in diabetes mellitus - painful, red swollen area with openings draining pus
Refer to M.D.
Contact dermatitis is what type of hypersensitivity?
Type 1
Eczema is associated with:
Hay fever and asthma
Erythema infectiosum/slapped cheek syndrome/5th disease:
Caused by Parvo B19 DNA virus
High fever in child followed by red rash on cheeks, child looks happy
Self-limiting and rash will disappear shortly
Neurofibromatosis
Genetic disorder of skin, nerves spine
Cafe au lait spots (Coast of California) fleshy tumors destruction of body of vertebra, biopsy of skin confirm diagnosis co-manage with dermatologist
Pityriasis Rosea
Harmless skin condition caused by a virus
Herald patch on abdomen following large oval patchs of flaky red or hypopigmented lesions in Christmas-tree pattern on trun
Dermatologist for itching
Rosacea
Chronic inflammation of skin in YA >30
Red rash, papules, pustules, telangiectasia on face, eyelids, nose excess flush with alcohol ingestion
Co-manage with dermatologist
Rubella/German measles
RNA toga virus in unimmunized patients
Fever, rash on face to trunk, Forchheimer’s sign
Self-limiting avoid contact with pregnant women in 1st tri
Scarlet fever
Step pyogenes
Fever, pharyngitis, strawberry tongue, blotchy rash on trunk with blanches on pressure, Pastia lines
MD
Skin cancer screen:
Moles >5mm in diameter, >50 moles, red hair + freckles, inability to tan, sunburns as child, kindred with skin cancer
Granuloma inguinale
Calymmatobacterium granulomatis
Painless beef red ulcers in genital region no swollen inguinal lymph nodes
M.D. or STD specialist
Lymphogranuloma venerum
Chlamydia trachomatis L1-3
Fleeting rash, swollen painful draining inguinal lymph nodes (buboes) rectal strictures
MD/STD specialist
Ophthalmia neonatorum
Infection of yes of newborn from N. gonorrhea
Swollen puffy eyelids, purulent discharge
1% silver nitrate drops after delivery, refer to hospital