CT Appearances of Hepatic and Splenic Abscesses Caused by Melioidosis
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Abstract
Objective: To compare the computed tomographic (CT) appearances of hepatic and splenic abscesses caused by meliodosis (ML) with those caused by other bacterial pathogens (NML).
Material and method: CT images of patients with hepatic and splenic abscesses were retrospectively reviewed at Mahasarakham hospital between November 2009-September 2011. The number, size, margin, distribution, septation and rim enhancement pattern of abscesses were evaluated and analyzed by Fisher’s exact test
Results: There were 20 patients, 12 with ML abscesses and 8 with NML abscesses, in this study the present study, the mean age was 54 years, 11 (55 %) were men. One and 3 ML patients had hepatic and splenic abscesses alone respectively, and 8 patients had combined hepatic and splenic abscesses. Seven and 1 NML patients had hepatic and splenic abscesses alone respectively. Significant predictors for melioidosis were concurrent hepatic and splenic involvement (p=0.001), multiple lesions (>1, p=0.018) with discrete distribution (p=0.033) and size <3 cm. (p=0.01). The splenic abscesses were more common and smaller in diameter than hepatic abscesses. The mean size of ML hepatic and splenic abscesses were 2.4 cm. and 1.1 cm. respectively. The NML abscesses had solitary lesion and larger in size, mean 4.7 cm.
Conclusion: The concurrent hepatic and splenic abscesses, multiple lesions with discrete distribution and smaller than 3 cm. may be useful CT appearances to differentiate ML from NML abscess.
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