Small Intestine

SMALL BOWEL LIPOMA

SMALL BOWEL CARCINOID

SMALL BOWEL ADENOCARCINOMA

JEJUNAL CARCINOMA

ABDOMINAL COCOON

MECKEL'S DIVERTICULUM

SUBMUCOSAL ANGIODYSPLASIA

SMALL BOWEL STENOSIS

SMALL BOWEL VOLVULUS

PERFORATION TERMINAL ILEUM

INTESTINAL PNEUMATOSIS

PROLAPSED ILEOSTOMY

VASCULAR TUMOR ILEUS

TERMINAL ILEITIS-CAECAL CARCINOMA

SCLEROSING PERITONITIS

ILEAL NEUROFIBROMA

PNEUMATOSIS INTESTINALIS

JEJUNAL DIVERTICULOSIS

INTESTINAL TUBERCULOSIS

INVERTED MECKEL'S DIVERTICULUM

INTESTINAL METAPLASIA

INTESTINAL LYMPHANGIECTASIA

INTESTINAL LYMPHOMA

ILEOCAECAL INTUSSUSCEPTION

ILEAL VILLI

ILEOCAECAL INTUSSUSCEPTION

ILEAL DIVERTICULOSIS

SMALL BOWEL GIST

GALLSTONE ILEUS

CAPSULE RETENSION - PERFORATION

CAPSULE RETENSION

NEUROENDOCRINE TUMOR

NEUROENDOCRINE TUMOR METASTASIS

FACE FLUSHING - NEUROENDOCRINE TUMOR

NEUROENDOCRINE TUMOR

SMALL BOWEL ADENOCARCINOMA

ILEAL TUMOR

ILEAL ADENOCARCINOMA

SMALL BOWEL CHLOROMA

NON HODGKIN'S LYMPHOMA

SMALL BOWEL NEUROENDOCRINE TUMOR

MALIGNANT SMALL BOWEL GIST

SMALL BOWEL LEIOMYOSARCOMA

SMALL BOWEL NEUROENDOCRINE CARCINOMA

SMALL BOWEL ANGIOSARCOMA

SMALL BOWEL ADENOCARCINOMA

Resected obstructed ileal loop. Blue circles enclose the metastatic foci (Courtesy Dr. V. Penopoulos)

Red arrows — transition point. Multiple air-fluid levels (Courtesy Dr. V. Penopoulos)

Plain abdominal X Ray - Small Bowel obstruction

Metastatic Lesions from urothelial bladder carcinoma . (Courtesy Dr. V. Penopoulos)

Immunohistochemical staining for Cytokeratin 7, demonstrating the diffusely infiltrating carcinoma in the submucosa, muscular wall, mesenteric adipose tissue, and serosa (Courtesy Dr. V. Penopoulos)

Polyps excised both surgically and endoscopically (Courtesy Dr. V. Penopoulos)

Polyps excised both surgically and endoscopically (Courtesy Dr. V. Penopoulos)

Metastasis in the ileostomy loop (Courtesy Dr. V. Penopoulos).

Polyps excised both surgically and endoscopically (Courtesy Dr. V. Penopoulos)

Polyps excised both surgically and endoscopically (Courtesy Dr. V. Penopoulos)

Peritoneal carcinomatosis (small bowel ca) (Courtesy Dr. V. Penopoulos)

Polyps excised both surgically and endoscopically (Courtesy Dr. V. Penopoulos)

Polyps excised both surgically and endoscopically (Courtesy Dr. V. Penopoulos)

CT Angiography. Ischemic changes of the gastrointestinal tract (Courtesy Dr. V. Penopoulos)

Necrosis of the small intestine (Courtesy Dr. V. Penopoulos)

Duodenojejunostomy. Courtesy Dr. V. Penopoulos.

Duodenoscopy. Yellow arrows – Incipient ischemic changes of the third portion of the duodenum due to pressure from the obstruction. Courtesy Dr. V. Penopoulos.

Figure 1 . Bone fragment penetrating the bowel wall . ( Courtesy Dr . V . Penopoulos ) .

Endoscopic view of ileal pouch - anal anastomosis 3 years before the development of adenocarcinoma (Courtesy Dr. V. Penopoulos)

The adenocarcinoma is clearly seen nearby the ileal pouch anal anastomosis (Courtesy Dr. V. Penopoulos)

Pouch-anal anastomosis

The adenocarcinoma is clearly seen nearby the ileal pouch anal anastomosis (Courtesy Dr. V. Penopoulos)

Adenocarcinoma seen at lower ileal pouch margin (Courtesy Dr. V. Penopoulos)

Enterotomy to free the inflated balloon (Courtesy Dr. V. Penopoulos)

Foley catheter removed (Courtesy Dr. V. Penopoulos)

Foley catheter removed (Courtesy Dr. V. Penopoulos)

Small Bowel Obstruction

Focus of stromal endometriosis in outer muscle layer of ileum

Small bowel obstruction (terminal ileum) - endometriosis . (Courtesy Dr . V . Penopoulos).

Positive CD10 immunostaining in endometriotic stromal cells

Non bleeding jejunal GIST (Courtesy Dr. V. Penopoulos)

Bleeding jejunal GIST (Courtesy Dr. V. Penopoulos)

Figure 1 . Ileal ulcers . ( Courtesy Dr . V . Penopoulos ) .

ILEAL NODULAR LYMPHOID HYPERPLASIA

Figure 3 . Intestinal ischemia . ( Courtesy Dr . V . Penopoulos ) .

Figure 2 . Abdominal CT Scan indicative of intestinal ischemia . ( Courtesy Dr . V . Penopoulos ) .

Abdominal MRI. Encapsulated small bowel loops (Courtesy Dr. V. Penopoulos)

Abdominal MRI. Encapsulated small bowel loops (Courtesy Dr. V. Penopoulos)

CT Scan .“Pseudo-tumor” at root of mesentery.(Courtesy Dr.V.Penopoulos).

Green shading: Complete occupation of the abdomen by the peritoneal "cocoon" (Courtesy Dr. V. Penopoulos)

Coverage of the abdominal wall defect with Permacol mesh.(Courtesy Dr. V. Penopoulos).

Barium study. Encapsulated small bowel loops (Courtesy Dr. V. Penopoulos)

Endoscopic view of ileal maltoma (Courtesy Dr. V. Penopoulos)

Enterectomy specimen. Ileal maltoma.(Courtesy Dr. V. Penopoulos).

Purple arrows: Sites of small bowel perforation. Encapsulation of the entire peritoneal cavity (Courtesy Dr. V. Penopoulos)

Abdominal CT Scan.The “fat ring” sign.(Courtesy Dr.V.Penopoulos).

Abdominal MRI. Abdominal "cocoon" (Courtesy Dr. V. Penopoulos)

Division of Ladd's bands (Courtesy Dr. V. Penopoulos)

Barium swallow — Anomalous midgut rotation (Courtesy Dr. V. Penopoulos)

Vascular bleeding tumor . (Courtesy Dr.V.Penopoulos).

Abdominal CT scan.Red arrows-Mass in the left pelvic wall.(Courtesy Dr. V. Penopoulos).

Abdominal CT scan after a 2-year interval. Red arrow – small residual neoplasm. Green arrow – small bowel loops (Courtesy Dr. V. Penopoulos)

Intraoperative view of the retroperitoneal neoplasm (Courtesy Dr. V. Penopoulos)

Perforation of the terminal ileum - CMV infection . (Courtesy Dr . V . Penopoulos).

Bezoar within an ileal loop (Courtesy Dr. V. Penopoulos)

Excised phytobezoar measuring 5 x 6.1 cm (Courtesy Dr. V. Penopoulos)

Excised phytobezoar measuring 5 x 6.1 cm (Courtesy Dr. V. Penopoulos)

Excised phytobezoar measuring 5 x 6.1 cm (Courtesy Dr. V. Penopoulos)

Abdominal CT Scan. Red arrow - Bezoar within the small bowel.(Courtesy Dr. V. Penopoulos).

Chest X-Rays .Pneumatosis intestinalis - Pseudo-pneumoperitoneum.Courtesy Dr.V.Penopoulos).

The perforation site of the terminal ileum is evident

Operative view of pneumatosis intestinalis. Blue arrow - Pneumatosis. Green arrows - Diverticula

Light blue arrow-Distended proximal intestinal loops.Purple arrow-Collapsed intestinal loops.Yellow arrow-Transition point.(Courtesy Dr. V. Penopoulos).(Courtesy Dr. V. Penopoulos)

Pneumatosis intestinalis . (Courtesy Dr . V . Penopoulos).

Spontaneous mesenteric haematoma . (Courtesy Dr . V . Penopoulos).

Enterectomy specimen. Mesenteric NET

Enterectomy specimen. Mesenteric NET

Abdominal CT Scan. Bowel pneumatosis

Gaseous overdistention of the small bowel and air in the gastric wall (red arrow).(Courtesy Dr.V.Penopoulos).

Ileal varices . ( Courtesy Dr . V . Penopoulos ) .

Endoscopic view . A bulky, rounded congestive mass is seen in the stomach . ( Courtesy Dr . V . Penopoulos ) .

Aortic arteriography. Thrombosis of the origin of the celiaco-mesenteric trunk

Gross surgical specimen shows the necrotic changed intussusception (red arrow).(Courtesy Dr.V.Penopoulos).

Abdominal CT Scan. Mass in the mesentery

Figure 1 . Ileal varices . ( Courtesy Dr . V . Penopoulos ) .

Figure 2 . Abdominal CT scan shows markedly dilated stomach with mass-like, thick-walled bowel loops (red arrow). ( Courtesy Dr . V . Penopoulos ) .

Bowel Ischaemic changes