Streptococcus pneumoniae pneumonia showing alveolar pneumonia in a man in his 80s.
A: Chest radiograph shows a nonsegmental consolidation in the right middle lung field, which is demarcated by the minor fissure suggestive of upper lobe pneumonia (arrow); B, C: Thinsection computed tomography (B) and acoronal reformatted image (C) demonstrate a nonsegmental consolidation with air bronchograms suggestive of alveolar pneumonia (arrows)!
MYCOPLASMA PNEUMONIAE "#$%&'#A
Mycoplasma pneumoniae pneumonia showing alveolar pneumonia in a woman in her 30s.
A: Chest radiograph demonstrates illdefined consolidation in the right lower lung field (arrow); B: ThinsectionCT reveals a nonsegmental consolidation with air bronchograms at the dorsal aspect of the right lower lobe! Areas of groundglass opacity are also noted around the consolidation (arrows)! CT: Computed tomography!
CHLAMYDOPHILLA PNEUMONIAE "#$%&'#A
Chlamydophila pneumoniae pneumonia showing alveolar pneumonia in a man in his 60s.
A: Chest radiograph shows an illdefined consolidation at the right lower lung field (arrow); B: 'n thinsection CT, a subpleural focal consolidation is seen at the right * of the right lower lobe, partially e+tending into the middle lobe (blac arrow)! The interlobular fissure is mildly thicened (arrow heads)! &ild bronchial wall thicening is also noted (white arrow)! CT: Computed tomography!
TUBERCULOSIS !EU"O!I#
Tu$er%ulous pneumonia in a woman in her 80s.
A: Chest radiograph shows e+tensive consolidations with poor aeration of the left lung and peribronchovascular consolidations of the right lung (arrows); B: Thinsection computed tomography reveals e+tensive consolidation with air bronchograms and cavities in the left upper lobe (blac arrows)! #ote that the bronchi in the consolidation are dilated! -ense centrilobular nodules are seen in the left lower lobe (white arrows)
Mycoplasma pneumoniae pneumonia showing $ron%hopneumonia in a man in his +0s.
A: Chest radiograph shows reticulonodular opacities and focal consolidation in the left middle to lower lung field (arrow)! The left pulmonary hilum appears enlarged; B: Thinsection computed tomography demonstrates fluffy centrilobular nodules with surrounding groundglass opacity in the left lower lobe (arrows)! #ote that central bronchial wall is thicened (arrow heads)!
&.C'"/A&A "#$%&'#A$ "#$%&'#A 0'1#2 22'
Mycoplasma pneumoniae pneumonia showing groun,glass opa%i- pre,ominanpneumonia in a woman in her 30s.
A: Chest radiograph shows patchy groundglass opacity (22') with peribronchial nodules in the right middle lung field (arrow); B: Thinsection computed tomography reveals areas of 22' in the right upper lobe! #ote that the 22' are partly demarcated by interlobular septa (arrows)!
!EU"OC&STIS /IROECII
Pneumocystis jirovecii pneumonia in a man in his 10s.
A: Chest radiograph shows bilateral reticulonodular opacities; B: Chest computed tomography with a 3 mm slice thicness demonstrates bilateral ground glass opacity with reticulations!
A: Chest radiograph diffuse reticulonodular opacities in both lungs; B: Thinsection computed tomography demonstrates diffuse military nodules with a random distribution!
#RICELL# OOSTER !EU"O!I#
Ran,om no,ules pre,ominan- pneumonia 4varicella5 zoster pneumonia in a man in his 30s. Thinsection computed tomography demonstrates scattered small solid or groundglass
opacity nodules which are unrelatedto centrilobular structures (arrows)!
CRYPTOCOCCUS NEOORM!NS !EU"O!I#
Cryptococcus neo"ormans pneumonia in a woman in her 70s.
A: Chest radiograph shows a mass in the right lung base (arrow); B: Chest computed tomography with a 3 mm slice thicness shows a mass and nodule in the right lower lobe (arrows)! &ultiple nodules4masses in the same pulmonary lobe are consideredcharacteristic findings of Cryptococcus pneumonia!
#SIR#TIO! !EU"O!I#
#spira-ion pneumonia in a woman in her 0s 4%ausa-ive pa-hogen un9nown.
Thinsection computed tomography images show centrilobular nodules with surrounding groundglass opacities and subpleural nonsegmental consolidations (arrows) at the dorsal portions of the right lung! #ote that the lumens of segmental bronchi are filled with aspirated materials (arrow heads)
!EU"O!I# C#USE2 B& #SIR#TIO! O: )#STRIC :LUI2
neumonia %ause, $ aspira-ion o; gas-ri% ;lui, in a man in his 70s.
A: nitial thinsection computed tomography (CT) shows patchy groundglass opacity in the left lung with reticulations; B: Thinsection CT 5 d later demonstrates partly increased attenuation with concaved margin of the opacities as well as a general resolution of pneumonia
!EU"O!I# O! # B#C*)ROU!2 O: UL"O!#R& E"'&SE"#
neumonia on a $a%9groun, o; pulmonar emphsema in a man in his 0s 4%ausa-ive pa-hogen un9nown.
Thinsection computed tomography shows patchy consolidations with small aircontaining spaces consistent with pree+istent low attenuation areas in the left lower lobe!
neumonia on a $a%9groun, o; pulmonar emphsema mimi%9ing hone%om$ing in a man in his 60s 4%ausa-ive pa-hogen un9nown.
Thinsection computed tomography shows an e+tensive area of groundglass opacity intermingled with consolidation in the right lower lobe! "seudohoneycombing is seen along the interlobar fissure (arrows)!
CR&TO)E!IC OR)#!II!) !EU"O!I#
Crp-ogeni% organi
A: Chest radiograph shows a consolidation in the right lower lung field with depression of the right minor fissure suggestive of volume loss of the middle lobe (white arrow)! 6etrocardiac consolidation is marginally seen (blac arrow); B, C: Thinsection computed tomography of the right lung (B) and left lung (C) demonstrate consolidations with air bronchograms in both lungs! #ote that the bronchi within the consolidations are mildly dilated and that the consolidations have concaved margins (arrows), suggesting organi7ation of the disease!
C'RO!IC EOSI!O'ILIC !EU"O!I#
Chroni% eosinophili% pneumonia in a woman in her 30s.
Chest radiograph shows bilateral subpleural consolidations with upper to middle lung field predominance, consistent with the appearance, 8the photographic negative of pulmonary edema9!
E=O)E!OUS LIOI2 !EU"O!I#
E>ogenous lipoi, pneumonia in a woman in her 30s? Cour-es o; 2r. *a
This patient had been taing petrolatum (paraffin) for intractable constipation! The presence of lipid was confirmed by transbronchial lung biopsy! A: Chest radiograph shows bilateral consolidations in the lower lung fields (arrows); B: Thinsection CT demonstrates an area of clearly demarcated groundglass opacity with a subpleural consolidation (arrow); C: Chest computed tomography (CT) with a mediastinal window setting reveals the subpleural consolidation to be of fat attenuation (arrow, mean CT value 30%)! #ambu A et al ! maging of communityacuired pneumonia
