A 28-year-old woman presented to the department of ophthalmology at Lahey Hospital and Medical Center with 2 months of headaches and progressive visual changes in both eyes.Two months before ...

Syphilitc acute posterior placoid chorioretinitis (APPC ... There were bilateral fine keratic precipitates and 2+ and 3+ cells in the right and left anterior chambers, respectively.

Close-up view of tiny placoid scales of the iconic extinct megatooth shark, Otodus megalodon, compared to a tip of a 0.5-mm mechanical pencil lead on the bottom right corner. Credit must be given ...