Micrograph showing<unk> . A large spherical, eosinophilic (i.e. pink) fibrin thrombus is seen off-center right. Stomach biopsy. H&E stain.<unk>  is usually diagnosed definitively by means of an endoscopic biopsy. The tell-tale watermelon stripes show up during the endoscopy. Surgical exploration of the abdomen may be needed to diagnose some cases, especially if the liver or other organs are involved. Differential diagnosis<unk>  results in intestinal bleeding similar to duodenal ulcers and portal hypertension. The GI bleeding can result in anemia. It is often overlooked, but can be more common in elderly patients. It has been seen in a female patient of 26 years of age. Watermelon stomach has a different etiology and has a differential diagnosis from portal hypertension. In fact, cirrhosis and portal hypertension may be missing in a patient with<unk> . The differential diagnosis is important because treatments are different.
Gastric antral vascular ectasia
Esophageal intramural pseudodiverticulosis
Foreign body in alimentary tract
Intestinal neuronal dysplasia
Autoimmune gastrointestinal dysmotility
Rectal foreign body
Multifocal stenosing ulceration of the small intestine
Retained antrum syndrome