How Should the Pyloric Submucosal Mass Coexisting with Hypertrophic Pyloric Stenosis Be Treated?: A Case of Pyloric Ectopic Pancreas with Hypertrophic Pyloric Stenosis / 대한소아소화기영양학회지

Co-existing pyloric submucosal masses with hypertrophic pyloric stenosis (HPS) are very rare and treating these lesions is always a problem. A 20-day-old boy presented with recurrent episodes of projectile non-bilious vomiting lasting for 5 days. HPS was suspected due to the presenting age and the symptoms. The sonography demonstrated not only circumferential wall thickening of the pylorus, but also a pyloric submucosal mass. At laparotomy, a 0.8 cm sized pyloric submucosal mass was identified along with a hypertrophied pylorus. Pyloric excision was performed due to the possibility of sustaining the symptoms and malignancy. The pathological report of the submucosal mass was ectopic pancreas. Coexisting pyloric lesions can be diagnosed along with HPS, and surgical excision, not just pyloromyotomy, should be considered in these circumstances. To the best of our knowledge, this is the first case report of pyloric ectopic pancreas and HPS to be diagnosed concurrently.

Huge Gastric Schwannoma Characterized by a Gastric Ulcer During Endoscopy / 대한소화기내시경학회지

Gastric schwannomas are very rare mesenchymal tumors that can occur throughout the gastrointestinal tract, but are most commonly found in the stomach. The majority of patients have no symptoms, while others may complain of epigastric pain or upper gastrointestinal ulcer bleeding. Endoscopic examination of a gastric schwannoma commonly reveals a protrusive mass, but, as in this case, many types of ulceration can be observed with central necrosis. We report on a 62-year-old woman with endoscopic findings of 1 cm sized necrotizing ulceration and an 11 cm sized submucosal mass on radiological examinations. The patient underwent a wedge-shaped resection of the stomach and segmental resection of the transverse colon. Both histological and immunohistochemical staining revealed a gastric schwannoma.

Xanthogranulomatous Inflammation Presenting as a Submucosal Mass of the Stomach / 대한소화기내시경학회지

Xanthogranulomatous inflammation is a rare chronic inflammatory condition that is characterized by aggregation of lipid-laden foamy macrophages (xanthoma cells). Although the precise pathogenesis of xanthogranulomatous inflammation is not well understood, various mechanisms have been proposed, including chronic recurrent infection, the presence of gallstones, immunologic disorders and defective lipid transport. This disease entity is well recognized in the kidney and gallbladder, yet involvement of the gastrointestinal tract is extremely rare and the involvement of both the stomach and colon has never been reported on. A coexisting malignancy rarely has been reported in a patient with xanthogranulomatous inflammation. This might present as an inflammatory mass-like lesion with infiltration to the surrounding tissues, and so this often mimics advanced cancer. Therefore, a surgical operation together with careful pathological evaluation is required for making the precise diagnosis. We herein report on a case of xanthogranulomatous inflammation that presented as a submucosal mass in the stomach which was a huge irregular mass involving transverse colon.

A Case of Gastritis Cystica Profunda / 대한소화기내시경학회지

Gastritis Cystica Profunda is a rare condition showing multiple small cysts in the mucosa and submucosa of the stomach. These lesions have been found not only at the site of a gastroenterostomy but also in tbe stomchs of patients without any previous surgery. Recently, We witnessed a 56-year old e wale gastritis cystica profunda who had not undergone previous gastric surgery. The UGI and EGD revealed a 3.0 * 4.5 cm sized submucosal mass on the posterior wall of the antrum, and endoscopic ultrasonography(EUS) discovered a thickening of the third layer in which well-defined, round and nearly anechoic areas with posterior enhancement were gathered. They were thought to be cystic lesions. We report a case of gastritis cystica profunda without having had any previous surgery, the diagnosis was made based on findings from the EUS and histologic findings through surgery.