Stomach content or not?

a neoproliferative lesion or a neoplasm should be ruled out ... a gastroscopic evaluation and sampling is indicated
thanks a lot

Stomach is filled with fluid and little gas with too much peristaltic movement, on the right side ie. pyloric/duodenal area you can see an intestine in the lumen of the stomach, I can only think of intussesception of the duodenum to the stomach but I don’t know if it’s even possible ;)

The stomach is moderately distended with liquid digesta and gas bubbles. Wall layering pattern is normal and subjectively thickness is normal. There are strong antral contractions. In the pyloric antrum there is an echogenic mass with a heterogenous echotexture that shows positive blood flow on colour Doppler. The mucosal layer of the stomach is preserved over the mass. Differentials would be a benign gastric polyp or emerging neoplastic lesion. Gastroscopy and biopsy could be considered however surgical excision would be more efficient and possibly curative. By scanning in this position, the fluid falls to the dependent part of the stomach, and gas rises, allowing for visualization of the lesion in the pyloric outflow.

It has the appearance of an instussusception of the duodenum into the stomach, but without the typical concentric circles. I would wonder if the right lateral position was causing this, so would also scan with patient in dorsal and left lateral.

My guess: gastric polyp; pyloric antrum. They are typically in this location too. On US, they give the appearance of a squishy (compliant) mass. I find this most often incidentally: no vomiting reported. This one too seems to go with the motility and gastric wall changes/contractions. Some are pedunculated but in my experience, not all. The echogenicity as well would lend support to an incidental polyp. I did have one dog with multiple polyps and chronic vomiting so I addressed that one as pyloric outflow obstruction. This dog has fluid in its stomach and some residual dependent ingesta. Not sure I would actually do anything beyond focusing on the DM unless chronic vomiting is part of the history or the owner reports the dog has fasted for a decent amount of time (thereby making the amount of liquid in the stomach not normal). But I would bet he has free access to water. If any question whether symptoms or not, I may re-ultrasound again at a later date.

Could it be an invagination? The stomach is fluid and gas filled. Perhaps there is a polyp causing invagination?

Good morning Dr. Dominique!
Is it a mass in the pyloric region?

Sorry, but did these peduncle lesions result in a picture like intussepção in the stomach?
What is the possible cause, please?
thanks

very nice images

wow that one is hard !! looks like a mass to me...

Good evening Dr. Dominique, this exam seems like a duodenal-gastric invagination, or it is an artefact?
Thanks for answers

Hello!!!
It has lost the pattern in layers of the stomach, therefore presence of an intraluminal mass.