A patient with fair skin has a new 6 mm pigmented lesion with irregular borders, variegated color, and recent change. Best next step: A) Topical 5-FU B) Shave biopsy C) Excisional biopsy with 1-2 mm margins D) Observation for 3 months
Only Microsporum species (M. canis, M. audouinii) fluoresce bright blue-green. Trichophyton species do not fluoresce. 6. Recommended Resources for Further Study | Resource | Type | |----------|------| | Andrews’ Diseases of the Skin | Textbook | | Fitzpatrick’s Color Atlas | Atlas | | Dermatology DDx Deck (Usatine) | Flashcards | | First Aid for the USMLE (Derm chapter) | Review | | Free online question banks | Qbank | End of PDF sample – 20 MCQs. To generate additional sets (100, 500, or specialty topics), contact or use a question generator. dermatology mcq pdf
A patient with diabetes has a well-demarcated, erythematous, scaly plaque in the groin. KOH shows pseudohyphae and budding yeast. Most likely organism: A) Trichophyton rubrum B) Candida albicans C) Malassezia furfur D) Sarcoptes scabiei A patient with fair skin has a new