Pulmonary cryptococcosis in immunocompetent patients: HRCT characteristics

Clin Imaging. 2004 May-Jun;28(3):191-5. doi: 10.1016/S0899-7071(03)00145-1.


We analyzed the high-resolution CT (HRCT) findings of cryptococcosis in immunocompetent patients. The predominant manifestations were multiple nodules (n=6) and a single nodule (n=7). Regarding the pattern of multiple nodules, two cases of cavities or necrosis, four cases of surrounding centrilobular micronodules and five cases of "acinar" nodules were seen. No "tree-in-bud" appearance was detected. Five of seven cases of a single nodule were classified as polygonal, and two of them were round. Two cases accompanied micronodules and one case cavitation. Although no "tree-in-bud" appearance was observed, pulmonary cryptococcosis mimics tuberculosis.

MeSH terms

  • Adult
  • Aged
  • Aged, 80 and over
  • Cryptococcosis / diagnostic imaging*
  • Diagnosis, Differential
  • Female
  • Humans
  • Image Processing, Computer-Assisted / methods
  • Immunocompetence*
  • Lung Diseases, Fungal / diagnostic imaging*
  • Male
  • Middle Aged
  • Necrosis
  • Solitary Pulmonary Nodule / microbiology
  • Tomography, X-Ray Computed / methods*
  • Tuberculosis, Pulmonary / diagnostic imaging