Lab test interpretation

Coprology Challenge: Spindle-Shaped Objects in Cat Feces

A clinical case in fecal microscopy: identify the nature of spindle-shaped, pointed structures, approximately 100 µm long, found in a cat's fecal sample.

An anonymous question from a subscriber. Could you please tell me what these straight, spindle-shaped, pointed objects, 100 µm long, are in cat feces?