Discussion
Diagnosis With Brief Discussion
- Diagnosis
- Cryptococcal pneumonia
- Radiologic Findings
- Figure 1. The posteroanterior chest radiograph shows multiple nodular opacities in bilateral lung fields. Large cavitary lesions are seen in left middle lung field.
Figure 2-5. Transverse images of chest CT show multiple variable nodules with or without adjacent ground-glass opacities. Left lung large cavities have irregular thick walls or abnormal fluid accumulation within cavities.
Figure 6. The following bronchoscopy shows multiple nodular polypoid mucosal lesions (arrows) in trachea and main bronchi.
Cryptococcal pneumonia confirmed with lung biopsy in this patient.

Figure 6. bronchoscopic finding
- Brief Review
- Cryptococcosis is a budding encapsulated yeast. It is found worldwide in association with birds, including pigeons. Cryptococcus neoformans (C. neoformans) is the most recognized species, and typically infects immunocompromised patients. Patients infected with C. neoformans may be asymptomatic or may have sign of pneumonia.
Chest radiographs commonly show solitary or multiple pulmonary nodules or masses measuring 5 to 40 mm in diameter. Nodules may cavitate. Miliary nodules may be seen in hematogenous dissemination. Immunocompetent patients also commonly show single or multiple nodules but rarely have consolidation, cavitation, lymphadenopathy, or pleural effusion. The most common CT finding is also single or multiple pulmonary nodules with varied margins in both immunocompromised and immunocompetent patients.
- Please refer to
Case 247, Case 305, Case 346, Case 484, Case 632, -
- References
- 1. Murayama, S Sakai, H Soeda, et al.: Pulmonary cryptococcosis in immunocompetent patients: HRCT characteristics. Clin Imaging. 28:191-195 2004
2. RM Lindell, TE Hartman, HF Nadrous, et al.: Pulmonary cryptococcosis: CT findings in immunocompetent patients. Radiology. 236:326-331 2005
- Keywords
- lung, fungal infection, Cryptococcal pneumonia,