General Surgery — Flashcards

Flashcard 551: Dermatophytes thrive in warm, _____ environments (e.g. locker rooms, public pools, hyperhidrosis)

Answer: humid

Flashcard 552: Spot diagnosis = _____

Answer: onychomycosis

Flashcard 553: How do tinea corporis & tinea cruris annular patches differ? _____

Answer: Characteristic scaly border seen in tinea corporis may be less visible due to the moist skin

Flashcard 554: Spot diagnosis: Hypopigmented or hyperpigmented macules with fine scaling = _____

Answer: pityriasis versicolor

Extra: Pityriasis versicolor is caused by Malassezia furfur. Under KOH mount, it shows a characteristic "spaghetti and meatballs" appearance (hyphae and spores).

Flashcard 555: Tinea corporis/cruris affects individuals of any age, but is more common in _____ & immunocompromised

Answer: children

Flashcard 556: Acne vulgaris spots include _____ (blackheads, whiteheads), inflammatory (pustules, papules), and excessive inflammatory (nodules, cysts) spots

Answer: comedones

Flashcard 557: What is the second-line management for pityriasis versicolor (extensive disease / topical mx is ineffective)? _____

Answer: Oral antifungal drugs (e.g. itraconazole or fluconazole)

Flashcard 558: What is the first-line management of pityriasis versicolor? _____

Answer: Topical antifungals: • Terbinafine, clotrimazole, or miconazole cream ketaconazole 2%, selenium sulphide shampoos (leave for 15 minutes then wash)

Flashcard 559: What investigation is done for suspected tinea pedis if uncertain or targeted treatment is needed? _____

Answer: Skin samples for microscopic & fungal culture examination

Flashcard 560: Spot diagnosis = _____

Answer: Tinea cruris