Abstract
Immunocompromised patients are prone to various opportunistic infections. Most of the infections are easily detectable through staining, culture, and polymerase chain reaction techniques. Nevertheless, it is also important to have wet smear examinations of samples. We present a case of pneumonia in a post-transplant recipient who was on immunosuppressants and detected to have an infection from the parasite, lophomonas blattarum, which usually resides in the hindgut of cockroaches.