TABLE 4.

Cytologic patterns of BAL according to type of pneumonia

Type of pneumoniaNo. of cases with cytologic patterna:Totalb
1234
Bacterial331310
Fungal22206
Viral134210
P. carinii1116119
  • a Definition of cytologic patterns: 1, >50% neutrophils plus lymphocytes; 2, 25 to 50% neutrophils plus lymphocytes; 3, <25% neutrophils plus lymphocytes; 4, evaluation not possible.

  • b Polymicrobial infections have been excluded.