Fig. 5: Overlapping clinical signs between Parkinsonian syndromes.

Overlapping phenotypes with the maximum likelihood ratio over the entire HPO tree for discriminating the condition on the left from each of the main mimics (top row). Positive likelihood ratio provided in the brackets. MCI mild cognitive impairment. RBD REM sleep behaviour disorder. Most of the terms are as per HPO definitions, but a few were abridged due to space constraints.