The answer to yesterday's diagnostic challenge is #2. Leprosy.
Most of you were correct. The patient's face had multiple nodular lesions that coalesced into plaques. After 9 months of multidrug treatment the skin infiltration and weakness in the left eyelid had diminished.
Leprosy is caused by the bacterium, Mycobacterium leprae. It is not very contagious and has a long incubation