UNASSIGNED: A 79-year-old male was referred to the hospital with a history of abdominal discomfort. Abdominal computed tomography revealed a @entity5 with irregular wall thickness, approximately 50  mm in diameter, along the lesser curvature of the gastric body. Magnetic resonance imaging visualized the mass as signal-hyperintense on T2-weighted imaging. Esophagogastroduodenoscopy showed a @entity5 with normal mucosa. Surgery was performed and the 60  *  50  *  50  mm mass was resected. The resected @entity5 comprised @entity5409 and solid regions; the @entity5409 region was filled by light bloody serous fluid. On histological examination, a solid region of the resected @entity5 showed a spindle-cell appearance. The diagnosis was @entity1820 ( @entity674 ) with predominant @entity5409 formation. GISTs are usually solitary @entity5 , but in this case the @entity5 demonstrated extremely predominant @entity5409 formation. Lesions with a @entity548 or @entity39 may form large @entity5409 spaces. GISTs may show extensive @entity5409 changes in response to @entity4149 kinase inhibitor treatment; however, this @entity1 had not undergone any such treatment before diagnosis. This represents an interesting case of a @entity1820 with predominant @entity5409 formation occupying most of the @entity5 volume. Care should be taken to differentiate between GISTs and @entity1320 .

A case of a stomach XXXX with extremely predominant @entity5409 formation.

@entity1 :: ('9606', 'Species') :: ['patient'] @entity5409 :: ('MESH:D052177', 'Disease') :: ['cystic'] @entity548 :: ('MESH:D006470', 'Disease') :: ['hemorrhage'] @entity39 :: ('MESH:D009336', 'Disease') :: ['necrosis'] @entity5 :: ('MESH:D009369', 'Disease') :: ['tumor', 'submucosal tumor', 'cystic tumor', 'tumors'] @entity1820 :: ('MESH:D005770', 'Disease') :: ['gastric GIST', 'gastric gastrointestinal stromal tumor'] @entity674 :: ('MESH:D046152', 'Disease') :: ['GIST'] @entity1320 :: ('MESH:D059413', 'Disease') :: ['actual intra-abdominal cystic lesions'] @entity4149 :: ('D014443', 'Chemical') :: ['tyrosine']
@entity674 :: (MESH:D046152,Disease) :: ['gastrointestinal stromal tumor']
