Does anybody recognize this picture and can tell me what organ it came from?
Update 3: Credit should go to @Cornelius and @DMSever for initially identifying the tissue correctly. I incorporated D M Sever's answer into mine (Update 2,below) because his answer is being down voted for brevity, but he is a recognized authority in the field. I'll remove his answer from mine if his answer ends up being retained.
I showed this question to my histological colleague. He suggested that the tissue is most likely a submucosal gland from either the duodenum (Brunner's glands) or the esophagus. My colleague also said that your image is quite similar to submucosal glands in the large intestine but the presence of smooth muscle surrounding the glands eliminates the large intestine.
Update 1: My histological colleague forwarded your question to one of his histological colleagues. He too said Brunner's gland.
Update 2: My histological colleague forwarded your question to his most trusted histological colleague. He said colon, specifically the transverse sections through Crypts of Lieberkuhn. He then signed on as @DMSever and posted a brief but authoritative answer. He's a veteran of histological affairs.
Here's a photo of Brunner's glands in the duodenum, taken from here.
Here's a photo of the esophageal submucosal glands, taken from here.
I'm not really sure, but it seems like a cross section of intestinal villi / intestinal glands from the large intestine.
Here are some images:
- Jubal Harshaw. Large intestine villi cross sectioned showing goblet cells_100X_CS0187 on ShutterStock
- Jubal Harshaw. Large intestine villi shown in both longitudinal section and cross section on ShutterStock
- Garry DeLong. Light micrograph of large intestine villi in cross section, showing goblet cells (Magnification x400) on Getty Images
- Hill, M.A. (2014) Embryology Gastrointestinal Tract - Colon Histology. Retrieved September 24, 2014, from https://php.med.unsw.edu.au/embryology/index.php?title=Gastrointestinal_Tract_-_Colon_Histology
And this is one image from the last link:
Crypts of Lieberkühn - (intestinal gland, intestinal crypt) [...] Transverse