Jejunitis

Jejunitis is inflammation of the lining of the middle section of the small intestine.^[1] It is characterized by severe abdominal pain, vomiting containing bile, and foul smelling loose stools.^[2] Acute jejunitis comes on suddenly and usually only lasts a few days. Less commonly, a chronic condition may cause persistent jejunitis.^[3]

Jejunoileitis

Jejunoileitis is Crohn's disease of the Jejunum.^[4] Jejunoileitis is an uncommon type of Crohn's disease with high morbidity and challenges in medical management. Common symptoms include:

Colicky abdominal pain (91%)
Weight loss (62%)
Diarrhea (53%)

Most patients had severe symptoms and required at least one operation for jejunoileitis, with two-thirds of patients requiring two or more operations. The combination of anti-inflammatory drugs with the relief of recurrent obstructive symptoms by strictureplasty and resection can together produce a good long term prognosis in most patients with jejunoileitis.

References

^ "Jejunitis". MedGen. National Center for Biotechnology Information (NCBI), U.S. National Library of Medicine. Concept Id: C0341276. Retrieved 2024-04-07.
^ Sharma AK, Shekhawat NS, Behari S, Chandra S, Sogani KC (June 1986). "Nonspecific jejunitis--a challenging problem in children". The American Journal of Gastroenterology. 81 (6): 428–431. PMID 3706261.
^ "Enteritis (Inflammation of the Small Intestine): Definition, Symptoms, Causes & Treatment". Cleveland Clinic. Retrieved 2024-04-07.
^ Tan WC, Allan RN (October 1993). "Diffuse jejunoileitis of Crohn's disease". Gut. 34 (10): 1374–1378. doi:10.1136/gut.34.10.1374. PMC 1374544. PMID 8244104.

Diseases of the human digestive system

Upper GI tract

Esophagus	Esophagitis Candidal Eosinophilic Herpetiform Rupture Boerhaave syndrome Mallory–Weiss syndrome Zenker's diverticulum Barrett's esophagus Esophageal motility disorder Nutcracker esophagus Achalasia Esophagogastric junction outflow obstruction Diffuse esophageal spasm Gastroesophageal reflux disease (GERD) Laryngopharyngeal reflux (LPR) Esophageal stricture Inlet patch Megaesophagus Esophageal intramural pseudodiverticulosis Acute esophageal necrosis
Stomach	Gastritis Atrophic Ménétrier's disease Gastroenteritis Peptic (gastric) ulcer Cushing ulcer Dieulafoy's lesion Dyspepsia Functional dyspepsia Pyloric stenosis Achlorhydria Gastroparesis Gastroptosis Portal hypertensive gastropathy Gastric antral vascular ectasia Gastric dumping syndrome Gastric volvulus Buried bumper syndrome Gastrinoma Zollinger–Ellison syndrome

Esophagus

Esophagitis
- Candidal
- Eosinophilic
- Herpetiform
Rupture
- Boerhaave syndrome
- Mallory–Weiss syndrome
Zenker's diverticulum
Barrett's esophagus
Esophageal motility disorder
- Nutcracker esophagus
- Achalasia
- Esophagogastric junction outflow obstruction
- Diffuse esophageal spasm
- Gastroesophageal reflux disease (GERD)
Laryngopharyngeal reflux (LPR)
Esophageal stricture
Inlet patch
Megaesophagus
Esophageal intramural pseudodiverticulosis
Acute esophageal necrosis

Stomach

Lower GI tract
Enteropathy

Small intestine (Duodenum/Jejunum/Ileum)	Enteritis Duodenitis Jejunitis Ileitis Peptic (duodenal) ulcer Curling's ulcer Malabsorption: Coeliac Tropical sprue Blind loop syndrome Small intestinal bacterial overgrowth Whipple's Short bowel syndrome Steatorrhea Milroy disease Bile acid malabsorption
Large intestine (Appendix/Colon)	Appendicitis Colitis Pseudomembranous Ulcerative Ischemic Microscopic Collagenous Lymphocytic Dysentery Functional colonic disease IBS Intestinal pseudoobstruction / Ogilvie syndrome Megacolon / Toxic megacolon Diverticulitis/Diverticulosis/SCAD
Large and/or small	Enterocolitis Necrotizing Gastroenterocolitis IBD Crohn's disease Vascular: Abdominal angina Mesenteric ischemia Angiodysplasia Bowel obstruction: Ileus Intussusception Volvulus Fecal impaction Constipation Diarrhea Infectious Intestinal adhesions
Rectum	Proctitis Radiation proctitis Proctalgia fugax Rectal prolapse Anismus Solitary rectal ulcer syndrome
Anal canal	Anal fissure/Anal fistula Anal abscess Hemorrhoid Anal dysplasia Pruritus ani

GI bleeding

Accessory

Liver	Hepatitis Viral hepatitis Autoimmune hepatitis Alcoholic hepatitis Cirrhosis PBC Fatty liver MASLD Vascular Budd–Chiari syndrome Hepatic veno-occlusive disease Portal hypertension Nutmeg liver Alcoholic liver disease Liver failure Hepatic encephalopathy Acute liver failure Liver abscess Pyogenic Amoebic Hepatorenal syndrome Peliosis hepatis Metabolic disorders Wilson's disease Hemochromatosis
Gallbladder	Cholecystitis Gallstone / Cholelithiasis Cholesterolosis Adenomyomatosis Postcholecystectomy syndrome Porcelain gallbladder
Bile duct/ Other biliary tree	Cholangitis Primary sclerosing cholangitis Secondary sclerosing cholangitis Ascending Cholestasis/Mirizzi's syndrome Biliary fistula Haemobilia Common bile duct Choledocholithiasis Biliary dyskinesia Sphincter of Oddi dysfunction
Pancreatic	Pancreatitis Acute Chronic Hereditary Pancreatic abscess Pancreatic pseudocyst Exocrine pancreatic insufficiency Pancreatic fistula

Other

Hernia	Diaphragmatic Congenital Hiatus Inguinal Indirect Direct Umbilical Femoral Obturator Spigelian Lumbar Petit's Grynfeltt–Lesshaft Undefined location Incisional Internal hernia Richter's
Peritoneal	Peritonitis Spontaneous bacterial peritonitis Hemoperitoneum Pneumoperitoneum