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Every week we propose a challenge: guess what disease or pathogen lays behind images of diseased animals or organs.

Week of 04-Jul-2013

This hydropericarditis is due to:

Confirm

Week of 15-Jan-2015

Which type of fetuses are these?

Week of 08-Jan-2015

What type of brain lesion is this one?

Week of 30-Dec-2014

This lesion is related to...

Week of 24-Dec-2014

Which lesion can be observed in the image?

Week of 18-Dec-2014

The etiology of these hemorrhages is...

Week of 11-Dec-2014

Which lesion can be observed in the image?