Two to five minutes

How to play

Start with the clinical photograph. Each incorrect diagnosis reveals a new, progressively more specific clue.

One case, five stages

  1. 1

    Clinical photograph

    Make the visual diagnosis with no written vignette for 5 points.

  2. 2

    Basic vignette

    Essential demographics, history, and chief concern. 4 points remain.

  3. 3

    Expanded context

    Progression, symptoms, distribution, exposures, and relevant negatives. 3 points remain.

  4. 4

    Diagnostic finding

    A high-value study such as histopathology, dermoscopy, or culture. 2 points remain.

  5. 5

    Giveaway clue

    The most recognizable board-relevant clue. 1 point remains.

Choosing a diagnosis

Use the searchable list of case-approved diagnoses. Capitalization and harmless punctuation do not matter, minor spelling errors are tolerated, and established synonyms may be accepted when the case reviewer has explicitly approved them. Related but overly broad answers are not counted as correct.

After the round

Dermdle reveals the diagnosis, explanation, key findings, differential, clinical pearl, references, and image attribution. Sharing never includes the diagnosis, patient details, clue text, or image.