[page 90] [Infectious Disease Reports 2012; 4:e24]

Leptotrichia species (LS) is an anaerobic Gram negative bacillus in the Bacteroidaceae family and part of the normal human oral flora. It is rarely pathogenic, but occasionally causes diseases in immunocompromised hosts. I am reporting a case of cavitary pneumonia caused by LS in an immunocompetent host. Case Report An 81-year-old diabetic male came to our hospital to seek medical attention for 2 weeks of productive cough, fever and chills, and a 10 Kg weight loss. Physical examination revealed a fatigued-looking man with mild respiratory distress. Except for bilateral crackles in bot