PMC9907382_01
(A) B-mode grayscale ultrasound (USG) image depicting a hypoechoic lesion with central hyperechoic foci (shown by the arrow) representing air bubbles. (B) A color Doppler image showing vascularity in the lesion, more toward the periphery (shown by the arrow), with central necrosis and air foci.
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FIG1
On USG, there was a heterogeneous hypoechoic mass lesion abutting the small bowel loop with multiple central hyperechoic foci representing gas bubbles (Figure 1A). There was significantly increased vascularity in the lesion on color doppler (Figure 1B).
(A) Coronal section, non-contrast computed tomography image (soft tissue window) showing a heterogeneous mass lesion (shown by the arrow) with central necrosis in the left hypochondrium abutting the jejunum with no signs of intestinal obstruction. (B) Coronal section, arterial phase-contrast enhanced computed tomography image (soft tissue window) of a mass lesion with peripheral enhancement (shown by the arrow) and multiple enlarged enhancing pre-aortic, para-aortic, and mesenteric lymph nodes.
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FIG2
On computed tomography (CT) scan, there was a heterogeneous exophytic mass lesion (Figure 2A) abutting the jejunal loop in the left hypochondrium with air density foci within, showing irregular peripheral enhancement in the arterial phase (Figure 2B) and centripetal filling in the venous (Figure 3A) and delayed phases (Figure 3B).
(A) An axial section of a venous phase-contrast enhanced computed tomography image (soft tissue window) demonstrating centripetal filling of the mass lesion with contrast (depicted by an arrow). (B) An axial section of a delayed phase-contrast enhanced computed tomography image (soft tissue window) demonstrating contrast filling of almost the entire lesion (shown by the arrow), with a few non-enhancing areas and central air collection.
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FIG3
On computed tomography (CT) scan, there was a heterogeneous exophytic mass lesion (Figure 2A) abutting the jejunal loop in the left hypochondrium with air density foci within, showing irregular peripheral enhancement in the arterial phase (Figure 2B) and centripetal filling in the venous (Figure 3A) and delayed phases (Figure 3B).
(A) Axial section, arterial phase-contrast enhanced computed tomography (CECT) image (soft tissue window) showing an enhancing mass lesion (shown by the arrow) in the upper outer quadrant of the right breast. (B) Sagittal section, venous phase-contrast enhanced computed tomography (CECT) image (soft tissue window) showing a heterogeneously enhanced enlarged lymph node (shown by the arrow) in the right axilla.
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FIG4
A gross specimen of a surgically resected jejunal loop with a mass lesion arising from its wall (shown by the arrow).
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FIG5
The mass from the resected jejunum (Figure 5) had features consistent with malignant GIST (spindle cell variant), and the proximal and distal margins of the jejunum were negative for infiltration by malignant cells.