Balantidium coli
Balantidium coli cyst in a stool specimen, a kidney bean-shaped macronucleus is observed. Tai Soon Yong
Trophozoites of Balantidium coli are seen in a section of human colon (H&E, 400x). DY Min/MH Ahn/JS Ryu
Trophozoites of Balantidium coli in large intestine. H & E stain. x100. Sung-Jong Hong
Trophozoites of Balantidium coli. H & E stain. x400. Sung-Jong Hong