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Diagnostic ultrasound ( PDFDrive )

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CHAPTER 8 The Gastrointestinal Tract 265

A

B

C

D

E

F

FIG. 8.9 Gastrointestinal Stromal Tumors (GISTs) in Four Patients. (A) and (B) Exophytic gut mass, a gastric leiomyoma. (A) Transverse

sonogram of epigastrium shows the normal gastric gut signature and the focal exophytic mass. (B) After water ingestion, the lumen contains luid

that appears hypoechoic. The solid mass is clearly seen. (C) and (D) Gastric leiomyosarcoma. (C) Transverse sonogram after luid ingestion

shows a complex, smooth intramural mass (arrows) projecting into the luid-illed stomach lumen (S). (D) Conirmatory barium swallow shows the

intramural tumor (arrows). (E) and (F) Two patients with a large, upper abdominal, complex, and necrotic-appearing mass on sonography. Although

the gut origin of the masses is not evident on the images, the correct diagnosis of GIST was suggested based on the appearance. The jejunum

is the origin of the tumor in (E) and the stomach in (F).

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