Article

Ruptured gastrointestinal stromal tumors: radiologic findings in six cases.

Department of Radiology, Hospital Morales Meseguer, Avenida Marqués de los Vélez, S/N, CP, 30008 Murcia, Spain.
Abdominal Imaging (impact factor: 1.73). 30(5):535-42. DOI:10.1007/s00261-005-0308-6 pp.535-42
Source: PubMed

ABSTRACT Gastrointestinal stromal tumors (GISTs) are characterized by the expression of c-KIT (antigen CD 117) and are the most common mesenchymal tumors of the digestive tract. An important complication, although infrequently described in the literature, is the rupture of these tumors with accompanying hemoperitoneum.
We performed a retrospective evaluation of the clinical history and radiologic records of 23 patients with a diagnosis of GIST and anatomopathologic and immunohistochemical confirmation at our hospital between 1999 and 2004.
In five cases there was rupture of the primary tumor (four gastric and one jejunal). In all five cases ultrasonographic and computed tomographic examinations showed a heterogenic tumor of laminated or whirled appearance, associated with echogenic or dense ascites. No relation was found between histologic criteria of malignancy and the rupture. Four patients underwent surgical intervention, three of them urgently. Two of five patients died. There was a sixth case with rupture of a hepatic metastasis, with accompanying hemoperitoneum and subcapsular hematoma. This patient died at 3 months, after recurrence of bleeding.
The finding of a heterogeneous tumor of laminated or whirled appearance associated with ascites with characteristics compatible with hemoperitoneum in an appropriate context must lead to a suspicion of the existence of a ruptured GIST.

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    Article: Spontaneous intraperitoneal hemorrhage as the initial presentation of a gastrointestinal stromal tumor: a case report.
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Keywords

23 patients
 
3 months
 
antigen CD 117
 
characteristics compatible
 
clinical history
 
common mesenchymal tumors
 
computed tomographic examinations
 
dense ascites
 
digestive tract
 
Gastrointestinal stromal tumors
 
GISTs
 
hepatic metastasis
 
heterogeneous tumor
 
heterogenic tumor
 
histologic criteria
 
immunohistochemical confirmation
 
primary tumor
 
radiologic records
 
ruptured GIST
 
subcapsular hematoma
 

M F Cegarra Navarro