alpha-fetoprotein producing gastric cancer accounts for less than 10% of the gastric adenocarcinomas. different histologic subtypes may exist, the least common of which is yolk sac morphology. to the best of our knowledge less than 10 cases have been reported with high alpha-fetoprotein and yolk sac components, either pure or mixed with ordinary adenocarcinoma of the stomach. during 10 years, f...

simultaneous a collision tumor of stomach consisting of adenocarcinoma and gastrointestinal stromal tumor (gist) is very rare based on our knowledge. this coexistence has rarely been reported in literatures. we report a case of 64-year-old woman who has diagnosed with prepyloric poorly-differentiated diffuse signet-ring cell type adenocarcinoma and has undergone an elective d2 total gastrectomy...

Metastasis of gastric adenocarcinoma to the prostate gland is extremely rare. Herein, we report a case of gastric adenocarcinoma in a 56-year-old man with prostatic metastasis diagnosed through the analysis of biopsy specimens from representative lesions in the stomach and prostate gland. Immunohistochemistry of the prostatic tissue showed positive staining for cytokeratin 7 and negative staini...

The simultaneous occurrence of an adenocarcinoma and schwannoma is extremely rare in the stomach, and only one such case has been previously reported, which presented as two separate masses. Indeed, the collision of these tumors has never been reported. We report the case of a 61-year-old male patient who was diagnosed with the synchronous development of a schwannoma and advanced mucinous adeno...

Heptoid adenocarcinoma (HAC) is a rare but important type of extrahepatic adenocarcinoma with highly aggressive behavior and a poor prognosis. The stomach is one of the organs in which HAC has been most commonly identified; however, multiple HACs in the stomach have not been previously reported. Here, we report the first case of multiple HACs in the stomach. A 46-year-old male with abdominal pa...

The coexistence of gastrointestinal tumors (GIST’s) with other several primary malignant neoplasms has been demonstrated. However, there is no study that reported simultaneous occurrence small bowel adenocarcinoma (SBA) and a GIST located in the stomach. Here, we report first case SBA synchronous gastric GIST. Surgical resection clinicopathological characterization were performed for masses ide...

Gastric adenocarcinoma is the most common histological type of the gastric tumors that accounts for approximately 95% of primary gastric tumors. Gastrointestinal stromal tumors are the most common mesenchymal tumors of the digestive tract accounting for 1%-3% of primary gastric tumors. However, synchronous gastric adenocarcinoma and gastrointestinal stromal tumor of the stomach is an uncommon e...

Access to the bypassed portion of the stomach after Roux-en-Y gastric bypass remains a challenge. We present a case of 64-year-old woman who presented with gastric outlet obstruction. We used a novel endoscopic technique to access the bypassed stomach by creating a jejunogastrostomy using a specialized stent, which allowed the insertion of a pediatric gastroscope to examine the bypassed portion...

Although it can affect any part of the gastrointestinal system, signet ring cell carcinoma (SRC) is a common malignant entity stomach cancers. We discuss case patient who had prior history gastric adenocarcinoma with cells, for which he underwent partial gastrectomy gastro-jejunal anastomosis. Four months after surgery, presented an acute postoperative blockage. Operative findings and pathology...