Module · Pattern recognition
Pattern Recognition Trainer
A random case from one of nine disease archetypes. Tick the findings you observe, pick the most likely diagnosis, and reveal — then move to the next case. Stats persist across visits; come back regularly for retrieval-practice gains.
Observed findings
Tick every finding that is present in this case. Then pick a diagnosis below.
Pick the single most likely diagnosis
How this trainer works
Each round generates a case by sampling a random disease archetype and then sampling each of seven features against that archetype's probability distribution. Mild per-instantiation jitter prevents memorisation of specific cases. The findings you see are real features observed in real patients — but the combination is novel.
The seven findings are deliberately discriminative — each one shifts the differential meaningfully. The diagnostic test is your ability to read the pattern: brief positional vertigo plus nothing else is BPPV; continuous vertigo plus central HINTS pattern is stroke; episodic vertigo plus fluctuating hearing loss is Ménière's (or vestibular migraine if migraine features are present). Some cases are deliberately ambiguous — selective inferior vestibular neuritis can look central because the head impulse is normal. That's the point of the trainer.