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  • Title: Newly developed ulcer-like projection (ULP) in aortic intramural haematoma on follow-up CT: is it different from the ULP seen on the initial CT?
    Author: Jang YM, Seo JB, Lee YK, Chae EJ, Park SH, Kang JW, Lim TH.
    Journal: Clin Radiol; 2008 Feb; 63(2):201-6. PubMed ID: 18194697.
    Abstract:
    AIM: To show whether the clinical and radiological features of newly developed ulcer-like projections (nULPs) in an aortic intramural haematoma (IMH) on follow-up computed tomography (CT) images, are different from those of the initial ULPs (iULPs) on the initial CT images. MATERIALS AND METHODS: A review of the radiological database revealed 98 patients with IMH with at least two follow-up CT examinations with a follow-up period of more than 1 month. The patients were divided into four groups: patients without iULPs or nULPs throughout the follow-up periods (group A); patients with iULPs on the initial CT images (group B); patients with nULPs on follow-up CT images but without iULPs on the initial CT images (group C); and patients with both iULPs and nULPs (group D). The type of IMH, aortic diameter, thickness of the haematoma, and complications were analysed. The clinical and CT findings and complications in the four groups were compared. RESULTS: Forty-two patients had no iULPs nor nULPs (group A); 27 patients had 45 iULPs on the initial CT images (group B); 16 patients had 17 nULPs on follow-up CT images without any ULP on the initial CT images (group C); and 21 nULPs developed in 13 patients with iULPs (group D). There was no significant difference in the demographic or initial CT findings in the four groups. There was no statistical difference in the incidence of complications between groups B (59.3%), group C (62.5%), and group D (69.2%; p=0.830), but there was a significant difference in the incidence of complications between the patients without any ULPs (21.5% in group A) and those with ULPs (62.5% in groups B, C, and D). CONCLUSION: There were no significant differences in the CT findings or complications between the patients with iULPs and nULPs. Regardless of the developing time of the ULPs, the incidence of complications of IMH in patients with ULPs was higher than that in those without ULPs. Careful and regular follow-up CT examinations are needed for patients with ULPs.
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