FIG 1.

(A) Gram stain of cyst fluid (magnification, ×200). (B) Wet-mount preparation of cyst fluid (magnification, ×200). (C) Ziehl-Neelsen stain of cyst fluid (oil immersion; magnification, ×1,000). (D) Papanicolaou stain of cyst fluid (magnification, ×400; polarized). (E) Diff-Quick stain of cyst fluid (magnification, ×400; polarized). (F) Hematoxylin and eosin stain of formalin-fixed paraffin-embedded cell block of cyst fluid (magnification, ×200). (Images courtesy of Diane Hensel [panels A and B], Cindy McCloskey [panel C], and Rachel Conrad [panels D to F], University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA; reproduced with permission.)