Computed tomographic differences of pyogenic liver abscesses caused by Klebsiella pneumoniae and non-Klebsiella pneumoniae

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Abstract

OBJECTIVE: To investigate the distinctive computed tomographic(CT) features of pyogenic liver abscess (PLA) caused by Klebsiella pneumoniae (KLA). METHODS: 114 PLA patients (62 men, 52 women, age range 25-89 years, mean age 60.9 years) with positive yield of blood or pus cultures were divided into 2 groups; KLA group (n = 58) and non-KLA group (n = 56). We retrospectively reviewed the CT images. The independent-sample t-test, X test, or Fisher's exact test were used with SPSS for windows version 11.0. RESULTS: Gas formation showed no significant difference between two groups (P = 0.284), but air-fluid pattern was found only in KLA group (P = 0.027). The rim on dynamic CT was showed less frequently in KLA group than non-KLA group (P < 0.001), and smooth and regular rim was more common in non-KLA group (P < 0.001). The septation and septal breakage were more common in KLA group (P < 0.001). The turquoise sign was found significantly more in KLA group (P < 0.001). The hairball sign was detected only in KLA group (P < 0.001). The cluster sign was less frequent in KLA group (P < 0.001). CONCLUSION: KLA had a series of characteristic intra-abscess features; septal breakage, turquoise-like structure, hairball-like content, air-fluid level, and no enhanced rim. When turquoise/hairball sign or air-fluid level is present in abscess, KLA would be a probable diagnosis in the clinical field.

Original languageEnglish
Pages (from-to)59-65
Number of pages7
JournalJournal of Computer Assisted Tomography
Volume31
Issue number1
DOIs
Publication statusPublished - 2007 Jan 1

Fingerprint

Pyogenic Liver Abscess
Klebsiella pneumoniae
Pneumonia
Air
Abscess
Suppuration
Gases

Keywords

  • Computed tomography
  • Klebsiella pneumoniae
  • Liver abscess
  • Pyogenic

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

Cite this

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title = "Computed tomographic differences of pyogenic liver abscesses caused by Klebsiella pneumoniae and non-Klebsiella pneumoniae",
abstract = "OBJECTIVE: To investigate the distinctive computed tomographic(CT) features of pyogenic liver abscess (PLA) caused by Klebsiella pneumoniae (KLA). METHODS: 114 PLA patients (62 men, 52 women, age range 25-89 years, mean age 60.9 years) with positive yield of blood or pus cultures were divided into 2 groups; KLA group (n = 58) and non-KLA group (n = 56). We retrospectively reviewed the CT images. The independent-sample t-test, X test, or Fisher's exact test were used with SPSS for windows version 11.0. RESULTS: Gas formation showed no significant difference between two groups (P = 0.284), but air-fluid pattern was found only in KLA group (P = 0.027). The rim on dynamic CT was showed less frequently in KLA group than non-KLA group (P < 0.001), and smooth and regular rim was more common in non-KLA group (P < 0.001). The septation and septal breakage were more common in KLA group (P < 0.001). The turquoise sign was found significantly more in KLA group (P < 0.001). The hairball sign was detected only in KLA group (P < 0.001). The cluster sign was less frequent in KLA group (P < 0.001). CONCLUSION: KLA had a series of characteristic intra-abscess features; septal breakage, turquoise-like structure, hairball-like content, air-fluid level, and no enhanced rim. When turquoise/hairball sign or air-fluid level is present in abscess, KLA would be a probable diagnosis in the clinical field.",
keywords = "Computed tomography, Klebsiella pneumoniae, Liver abscess, Pyogenic",
author = "Kim, {Sung Bum} and Bo-Kyung Je and Lee, {Ki Yeol} and Lee, {Seung Hwa} and Chung, {Hwan Hoon} and Cha, {Sang Hoon}",
year = "2007",
month = "1",
day = "1",
doi = "10.1097/01.rct.0000224629.48068.69",
language = "English",
volume = "31",
pages = "59--65",
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TY - JOUR

T1 - Computed tomographic differences of pyogenic liver abscesses caused by Klebsiella pneumoniae and non-Klebsiella pneumoniae

AU - Kim, Sung Bum

AU - Je, Bo-Kyung

AU - Lee, Ki Yeol

AU - Lee, Seung Hwa

AU - Chung, Hwan Hoon

AU - Cha, Sang Hoon

PY - 2007/1/1

Y1 - 2007/1/1

N2 - OBJECTIVE: To investigate the distinctive computed tomographic(CT) features of pyogenic liver abscess (PLA) caused by Klebsiella pneumoniae (KLA). METHODS: 114 PLA patients (62 men, 52 women, age range 25-89 years, mean age 60.9 years) with positive yield of blood or pus cultures were divided into 2 groups; KLA group (n = 58) and non-KLA group (n = 56). We retrospectively reviewed the CT images. The independent-sample t-test, X test, or Fisher's exact test were used with SPSS for windows version 11.0. RESULTS: Gas formation showed no significant difference between two groups (P = 0.284), but air-fluid pattern was found only in KLA group (P = 0.027). The rim on dynamic CT was showed less frequently in KLA group than non-KLA group (P < 0.001), and smooth and regular rim was more common in non-KLA group (P < 0.001). The septation and septal breakage were more common in KLA group (P < 0.001). The turquoise sign was found significantly more in KLA group (P < 0.001). The hairball sign was detected only in KLA group (P < 0.001). The cluster sign was less frequent in KLA group (P < 0.001). CONCLUSION: KLA had a series of characteristic intra-abscess features; septal breakage, turquoise-like structure, hairball-like content, air-fluid level, and no enhanced rim. When turquoise/hairball sign or air-fluid level is present in abscess, KLA would be a probable diagnosis in the clinical field.

AB - OBJECTIVE: To investigate the distinctive computed tomographic(CT) features of pyogenic liver abscess (PLA) caused by Klebsiella pneumoniae (KLA). METHODS: 114 PLA patients (62 men, 52 women, age range 25-89 years, mean age 60.9 years) with positive yield of blood or pus cultures were divided into 2 groups; KLA group (n = 58) and non-KLA group (n = 56). We retrospectively reviewed the CT images. The independent-sample t-test, X test, or Fisher's exact test were used with SPSS for windows version 11.0. RESULTS: Gas formation showed no significant difference between two groups (P = 0.284), but air-fluid pattern was found only in KLA group (P = 0.027). The rim on dynamic CT was showed less frequently in KLA group than non-KLA group (P < 0.001), and smooth and regular rim was more common in non-KLA group (P < 0.001). The septation and septal breakage were more common in KLA group (P < 0.001). The turquoise sign was found significantly more in KLA group (P < 0.001). The hairball sign was detected only in KLA group (P < 0.001). The cluster sign was less frequent in KLA group (P < 0.001). CONCLUSION: KLA had a series of characteristic intra-abscess features; septal breakage, turquoise-like structure, hairball-like content, air-fluid level, and no enhanced rim. When turquoise/hairball sign or air-fluid level is present in abscess, KLA would be a probable diagnosis in the clinical field.

KW - Computed tomography

KW - Klebsiella pneumoniae

KW - Liver abscess

KW - Pyogenic

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U2 - 10.1097/01.rct.0000224629.48068.69

DO - 10.1097/01.rct.0000224629.48068.69

M3 - Review article

VL - 31

SP - 59

EP - 65

JO - Journal of Computer Assisted Tomography

JF - Journal of Computer Assisted Tomography

SN - 0363-8715

IS - 1

ER -