A patient with AIDS may develop a mixed pulmonary infection caused by a Trichomonas species and Pneumocystis jirovecii (formerly P. carinii). The presence of pulmonary trichomoniasis often goes undetected because it is not expected.
Findings:
(1) acute respiratory distress syndrome (ARDS) in a patient with AIDS
(2) ground-glass opacities on chest X-ray
(3) presence of Pneumocystis
(4) presence of Trichomonads
Testing is needed to distinguish between the Trichomonas species that could be present:
(1) T. tenax (from the oropharynx)
(2) T. vaginalis (from the genital tract)
(3) T. hominis (from the gastrointestinal tract)
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