Emily (all names and identifiers have been changed to protect confidentiality) was a 7-year-old girl seen by her pediatrician for a routine annual examination. Although Emily had voiced no complaints, her mother had noted that she had appeared paler than usual. Upon physical examination, her pediatrician noted a nontender palpable mass in the child’s stomach, leading him to order an abdominal u...

INTRODUCTION Hepatoid adenocarcinoma is a special type of extrahepatic alpha-fetoprotein-producing adenocarcinoma, which has a morphologic similarity to hepatocellular carcinoma. We report a patient with underlying hepatitis B virus infection and hepatoid adenocarcinoma with liver metastasis mimicking hepatocellular carcinoma. CASE PRESENTATION We present the case of a 56-year-old Chinese fem...

Introduction. Glomus tumors (GTs) are benign neoplasm originating from the glomus body, commonly described in subungual region. The involvement abdominal is rare. Our aim is to describe a case of glomus tumor of the stomach that presented upper gastrointestinal bleeding. A 34-year-old woman was admitted with upper gastrointestinal bleeding and underwent an upper endoscopy that showed bleeding a...

Inflammatory myofibroblastic tumor (IMT) is a rare, benign neoplasm that most commonly occurs in pediatric patients; it has been described as a pseudosarcomatous proliferation of spindled myofibroblasts mixed with lymphoplasmacytic cells. IMT has been reported in a number of locations throughout the body; however, cases occurring in the gastrointestinal tract are rare and to date, no case invol...

A 74-year-old man suffered from jejunal perforation and adhesion to sigmoid colon due to adenocarcinoma associated with intraductal papillary mucinous neoplasm (IPMN) arising in a jejunal heterotopic pancreas. The jejunal lesion showed direct extension to the sigmoid colon, which was mistaken as sigmoid colon cancer by surgeons. Malignant transformation is a rare complication of a heterotopic p...

Hemangioma is the most common benign hepatic neoplasm. The majority of cases are asymptomatic and can be confirmed by imaging examinations, including enhanced computed tomography and magnetic resonance imaging. Exophytic growth is not common and pedunculated cases are extremely rare. The present study reports a case that was pre-operatively misdiagnosed as a stomach-originating tumor. Laparosco...

CONTEXT "Hepatoid" cancer refers to an extrahepatic neoplasm with hepatocellular differentiation. The stomach is the most common site and pancreatic origin is distinctly uncommon. CASE REPORT We describe a patient with hepatoid pancreatic tumor who presented with inoperable metastatic disease. CONCLUSION Serum levels or tissue staining with alpha-fetoprotein (AFP) may not be a reliable tumo...

Gastric Teratoma is an extremely rare neoplasm seen in children. It is mostly benign and predominantly seen in males presenting with an abdominal mass. The lung and stomach are very unusual sites for teratoma. Gastric teratoma accounts for less than 1% of all teratomas, less than 100 cases are reported in literature. We report a case in a 20-day-old infant who presented with large abdominal mas...

Clear cell sarcoma-like tumor of the gastrointestinal tract (CCSLGT) is a rare malignant neoplasm arising within the wall of the small bowel, stomach, or large bowel, predominantly in children and young adults. It is an aggressive tumor with a high rate of local recurrence, metastases, and early death from disease. Histologically, it is composed of relatively monomorphic ovoid or round cells wi...

A gastrointestinal stromal tumor (GIST) is a rare malignancy, accounting for only 0.1% to 3% of all (GI) malignancies. Although GISTs are the most common mesenchymal GI tract, they primarily found within stomach, with rectal rarely reported. They may present bleeding, constipation, pain, or palpable mass while some incidentally. The incidence has been on rise, possibly due advancements in diagn...