Guess the diagnosis
analyse_media
Based on the video analysis, the findings are:
- Multiple small, discrete hypopigmented (pale/white) macules scattered across the right cheek, preauricular area, and jawline
- Some lesions appear slightly raised (papules) with fine surface texture or mild scaling
- No facial asymmetry, weakness, or neurological signs
- Otherwise normal ear and neck
Likely Diagnosis: Pityriasis Versicolor (Tinea Versicolor)
Key features pointing to this diagnosis:
- Hypopigmented macules/patches in a scattered distribution on the face
- Fine, subtle scaling on the surface of lesions
- Discrete, small lesions with irregular borders
- Common in tropical/subtropical climates
Caused by: Malassezia furfur (a commensal yeast that becomes pathogenic), which produces azelaic acid that inhibits melanin production, leading to hypopigmentation.
Differential Diagnoses to Consider:
| Condition | Feature that fits | Feature against |
|---|---|---|
| Pityriasis alba | Hypopigmented macules on face, fine scaling | Usually ill-defined borders, associated with atopy |
| Vitiligo | Depigmented patches | Usually completely white (achromic), not just hypopigmented; sharp borders |
| Post-inflammatory hypopigmentation | Pale macules | Would need history of prior inflammation/rash |
| Ash-leaf macules (tuberous sclerosis) | Hypopigmented macules | Typically elliptical/ash-leaf shaped, present since birth |
| Leprosy (tuberculoid/borderline) | Hypopigmented macules with scaling | Usually hypoesthetic, fewer lesions, nerve thickening |
Most probable: Pityriasis versicolor - the combination of discrete hypopigmented macules with subtle fine scaling on the face strongly suggests this. Confirmation is with KOH scraping showing the classic "spaghetti and meatballs" pattern (Malassezia hyphae and spores).
Treatment: Topical antifungals (ketoconazole 2% shampoo/cream, selenium sulfide) or oral fluconazole/itraconazole for extensive disease.
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