PMC3891416_01
An esophagogastroduodenoscopic (EGD) examination revealed a round mass with normal surrounding mucosa and central ulceration in the duodenal bulb.
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F1
An esophagogastroduodenoscopic (EGD) examination revealed a round mass of about 3-cm at the duodenal bulb, with normal surrounding mucosa and central ulceration (Figure 1).
Abdominal CT scan showing an exophytic well-defined round mass in the duodenal bulb. The mass enhanced as gastric mucosa and was presumed to be a duodenal gastrointestinal stromal tumor (GIST).
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F2
Chest X-ray films showed inactive pulmonary tuberculosis at the left upper lobe, and abdominal computed tomography (CT) revealed a well-defined round mass that enhanced as gastric mucosa, at the posterior wall of the duodenal bulb suggestive of duodenal GIST (Figure 2).
Endoscopic ultrasonography (EUS) showed an ulcerative hypoechogenic mass originating from the submucosal layer.
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F3
Endoscopic ultrasonography (EUS) showed an ulcerative hypoechogenic mass at the submucosal layer of the duodenal bulb (Figure 3).
Histopathologic image of the enlarged perihepatic lymph node showed granuloma with caseation (H&E stain, x200).
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F4
The mass was excised and a histopathological analysis revealed lymphadenopathy with caseous granuloma (Figure 4).