Repeated bleeding scintigraphy may reveal that stationary foci of activity represent sites of active hemorrhage.

Abstract:

:The goal of bleeding scintigraphy is to localize the site of origin of a hemorrhage to within general regions of the large or small bowel. Activity is typically seen to extravasate from the blood pool into the lumen, and the collection of activity then moves on sequential images, as a result of the cathartic action of blood. Sometimes, bleeding studies show a stationary focus of activity without subsequent movement. It is generally assumed that these foci represent fixed structures, such as the urinary tract or prominent vasculature, rather than acute extravasation of labeled blood into the bowel. The authors report three cases in which repeated studies showed that fixed foci of activity were, in fact, related to gastrointestinal bleeding. In two instances, the fixed foci represented extravasated blood that, for unexplained reasons, did not move during the study. In an additional case, the fixed activity visualized was ultimately shown to be prominent varices, which were implicated in the bleeding. Recognition of these possibilities, and consideration of possible strategies to localize the bleeding site further, should facilitate optimal patient treatment.

journal_name

Clin Nucl Med

authors

Krynyckyi BR,Zuckier LS,Tatlidil R,Chen WT,Kim CK,Freeman LM

doi

10.1097/00003072-200201000-00006

keywords:

subject

Has Abstract

pub_date

2002-01-01 00:00:00

pages

25-9

issue

1

eissn

0363-9762

issn

1536-0229

journal_volume

27

pub_type

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