Read the lesion
Dermatology - Image Library
Clinical photographs annotated with morphology, distribution and the differential that matters.
- Morphology + differential
- Annotated
- Learn to describe
- Pattern-based
What's inside the Dermatology library
The dermatology library teaches description before diagnosis - site, size, colour, border and surface - so you reason to the answer the way examiners expect.
Melanoma
Apply the ABCDE rule: Asymmetry, Border irregularity, Colour variation, Diameter over 6 mm and Evolution over time. Any changing pigmented lesion, especially with these features, needs urgent excision biopsy rather than reassurance.
Psoriasis
Well-demarcated erythematous plaques with a silvery scale, typically on extensor surfaces and the scalp. Removing the scale reveals pinpoint bleeding (the Auspitz sign). Look for nail pitting and ask about joint symptoms.
Describe the lesion before naming it
Use a fixed sequence: site and distribution, number, primary lesion, colour, border, surface and secondary change. Then ask what cannot be judged from a photograph, including texture, tenderness, blanching, mucosal involvement, systemic illness and evolution over time. Compare close mimics by morphology rather than memorising a single typical picture. Skin tone, lighting and camera processing can change appearance, so the library is a pattern-learning aid; patient diagnosis still requires history, direct examination and appropriate dermoscopy, microscopy, culture or biopsy.
Work through the full Dermatology library in MedNext
Every image is annotated the same way, mapped to high-yield exam topics and linked to its chapter.
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