Infections of Skin · NEET PG Preparation Dermatology
A 30-year-old male presents with hypopigmented macules on his upper trunk and back that show a fine scale when scratched (Zileri's sign). Direct micr…
Practice question from Infections of Skin (NEET PG Preparation Dermatology), with the correct answer and a step-by-step solution.
easy · MCQ · Q-0E2D12
A 30-year-old male presents with hypopigmented macules on his upper trunk and back that show a fine scale when scratched (Zileri's sign). Direct microscopic examination of skin scrapings treated with 10% KOH reveals short, stubby hyphae and clusters of spores, classically described as 'spaghetti and meatballs'. What is the diagnosis?
- A.Tinea versicolorCorrect answer
- B.Vitiligo
- C.Pityriasis alba
- D.Progressive macular hypomelanosis
Solution
Tinea versicolor (pityriasis versicolor) is a superficial fungal infection caused by Malassezia species. The KOH mount classically demonstrates the 'spaghetti and meatballs' appearance representing hyphae and yeast spores.
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