Fig 1.
CT: Computed tomography.
Table 1.
Clinical and biological characteristics of the study population.
Table 2.
CT abnormalities by presence of symptoms and by anatomical region.
Fig 2.
Examples of CT findings in sinusitis cases.
Axial sections of paranasal sinus CT in 2 different patients (A, B). A: Partial filling of the right maxillary sinus with gas-fluid level and tiny bubbles on the surface of the fluid (arrow); final diagnosis of acute right maxillary sinusitis without microbiological evidence. B: Partial filling of the left portion of the sphenoidal sinus, with peripheral mucosal thickening, gas-fluid level, and some bubbles on the surface of the fluid; punctate hyper attenuations within the filling (arrow); final diagnosis of acute left sphenoidal sinusitis without microbiological evidence.
Table 3.
Semiology of chest CT abnormalities and final diagnosis.
Fig 3.
Examples of CT findings in pneumonia cases.
Axial chest CT sections in 6 different patients (A-F). A: Parenchymal condensation of the right upper lobe, with irregular contours and aerated bronchogram, associated with bilateral pleural effusion. Microbiological diagnosis of Pseudomonas aeruginosa pneumonia. B: Parenchymal condensation of the right lower lobe with peripheral ground glass and intralobular reticulations (crazy paving). Microbiological diagnosis of Staphylococcus warneri pneumonia. C: Pseudonodular condensation area of the culmen, with peripheral ground glass halo. Microbiological diagnosis of Aspergillus fumigatus pneumonia. D: Rounded ground-glass area of the apicodorsal segment of the culmen, with irregular contours, associated with pleural effusion. Microbiological diagnosis of Rhizomucor and Rhizopus pneumonia. E: Bilateral nodules with blurred contours (arrows). Microbiological diagnosis of septic embolisms due to Stenotrophomonas maltophilia. F: Bilateral micronodules and ground glass nodules with blurred contours (arrows). Microbiological diagnosis of Parainfluenza virus type 3 pneumonia.
Table 4.
Microbial etiology of diagnosed pneumonia.
Fig 4.
Examples of CT findings in various abdominal diseases.
Abdomen/pelvis CTs in coronal (A) and axial (B-F) sections in 6 different patients. Abnormalities indicated by arrows. A: Wall thickening of the cecum: Diagnosis of neutropenic colitis. B: Newly appeared hypoenhancing hepatic and splenic micronodules: Diagnosis of hepatosplenic invasive candidiasis. C: Appendiceal dilation with wall thickening, mucosal hyperenhancement and submucosal edema: Diagnosis of acute appendicitis. D: Segmental wall thickening of the sigmoid colon with edematous thickening of a dilated diverticulum, and pericolic fat stranding: Diagnosis of uncomplicated acute diverticulitis. E: Gallbladder wall thickening, with mucosal hyperenhancement and perivesicular fat stranding: Diagnosis of acute cholecystitis. F: Hypo enhancing renal collection: Diagnosis of renal abscess.
Table 5.
Semiology of abdomen/pelvis CT abnormalities and final diagnosis retained.
Table 6.
Therapeutic changes undertaken after CT scans.