What is a Exophytic gastric mass?

Objective: Exophytic adenocarcinomas of the stomach are tumors that have large extraluminal portions. Exophytic growth of gastric carcinoma is rare, and such tumor may be confused with gastric leiomyosarcoma.

What is a gastric leiomyoma?

Gastric leiomyoma (GLM) is a submucosal lesion that can be intraluminal or extramural and represents 2.5% of gastric neoplasms. 1,2. Usually, most of them are asymptomatic. Sometimes, they can become clinically apparent due to bleeding from ulceration of the overlying gastric mucosa.

Is a submucosal tumor cancerous?

Gastric submucosal tumors are usually detected as small tumors with the more frequent use of endoscopy and CT. Large submucosal tumors are more likely to be malignant and often have symptoms; thus, differentiation of small submucosal tumors is clinically more important.

What is a gastric lesion?

Gastric lesions include crypt dilatation, submucosal fibrosis, adenomatous gastric hyperplasia, mineralization, and erosion or ulceration. Gastric ulcers may be stress-related, especially in mice with prolonged illness. Germfree mice may have reduced muscle tone in the intestinal tract.

What is a gastric mass?

A stomach mass is a lump or growth in the stomach area. A person may be able to feel the lump, or it might be deeper in the stomach. Stomach masses have many possible causes, and some may only be detectable with imaging or surgical exploration.

Where are schwannomas located?

Schwannomas can be found in the sheath that covers the nerves. They are found in the peripheral nervous system, cranial nerves or the root of a nerve and not in the brain or spinal cord. A common area for schwannomas is the nerve connecting the brain to the inner ear.

What is the gastric cardia?

The gastric cardia is a microscopic zone that is normally found in the most proximal portion of the stomach, although cardiac-type mucosa may arise in the distal esophagus as a metaplastic phenomenon secondary to gastroesophageal reflux disease (GERD).

What is a gastric submucosal tumor?

INTRODUCTION. A submucosal tumor (SMT) is defined as any intramural growth underneath the mucosa, where etiology cannot readily be determined by luminal diagnostic endoscopy or barium radiography[1]. The incidence of SMTs in the entire gastrointestinal (GI) tract is not known.

Can a stomach tumor be benign?

A non-cancerous, or benign, tumour of the stomach is a growth that does not spread (metastasize) to other parts of the body. Non-cancerous tumours are not usually life-threatening. They are typically removed with surgery and do not usually come back (recur).

What are the features of a gastric stromal tumor?

Endoscopic ultrasound (EUS) confirms a solid mass with cystic/necrotic component involving the gastric wall. On endoscopy view, the tumor pushed into the gastric lumen pushing the gastric mucosa. Typical imaging features of a gastric GIST, which, on CT was not entirely convincing to not have pancreatic involvement.

Can a gastric tumor be in the pancreas?

On endoscopy view, the tumor pushed into the gastric lumen pushing the gastric mucosa. Typical imaging features of a gastric GIST, which, on CT was not entirely convincing to not have pancreatic involvement. Further workup with MRI showed the lesion to be confined to the gastric wall.

What kind of tumors are found in the stomach?

Intramural gastric tumors are typically mesenchymal in origin and include gastrointestinal stromal tumors (GISTs), non-GIST sarcomas, lipomas, leiomyomas, schwannomas, glomus tumors, hemangiomas, inflammatory fibroid polyps (IFPs), inflammatory myofibroblastic tumors (IMFTs), and plexiform fibromyxomas.

Can a glomus tumor be mistaken for a gist?

Leiomyomas usually manifest as low-attenuation masses at the gastric cardia. Homogeneous attenuation is a noteworthy characteristic of schwannomas, particularly for larger lesions that might otherwise be mistaken for GISTs. A hypervascular mass in the antrum is a common manifestation of glomus tumors.