Saccharomyces cerevisiae as a cause of oral thrush & diarrhoea in an HIV/ AIDS patient.

Saccharomyces cerevisiae is a commensal inhabiting the gastrointestinal tract of humans, considered important to maintain the normal homeostasis of the lower gastrointestinal tract. A vast majority of patients with AIDS and low CD4 counts present with manifestations involving the gastrointestinal tract in the form of oral thrush, oesophagitis, duodenitis, jejunitis, colitis, and protracted diarrhoea. Saccharomyces cerevisiae though considered a commensal, has been seen to cause infections in immunocompromised patients. Here, we present a case of an HIV positive patient who presented with hitherto unreported pangastrointestinal involvement due to Saccharomyces cerevisiae.