Proctocolitis

Proctocolitis is a general term for inflammation of the rectum and colon.^[1]

Etiology

Common etiologic agents of proctocolitis include Chlamydia trachomatis, Neisseria gonorrhoeae, HSV, and Campylobacter species.

Treatment

Ceftriaxone and doxycycline.

References

^ Online Medical dictionary[1]

Inflammation

Acute

Plasma derived mediators	Bradykinin · complement (C3, C5a, MAC) · coagulation (Factor XII, Plasmin, Thrombin)

Cell derived mediators	preformed: Lysosome granules · vasoactive amines (Histamine, Serotonin) synthesized on demand: cytokines (IFN-γ, IL-8, TNF-α, IL-1) · eicosanoids (Leukotriene B4, Prostaglandins) · Nitric oxide · Kinins

Chronic

Macrophage · Epithelioid cell · Giant cell · Granuloma

Processes

Traditional: Rubor · Calor · Tumor · Dolor (pain) · Functio laesa
Modern: Acute-phase reaction/Fever · Vasodilation · Increased vascular permeability · Exudate · Leukocyte extravasation · Chemotaxis

Specific locations

Nervous	CNS (Encephalitis, Myelitis) · Meningitis (Arachnoiditis) · PNS (Neuritis) · eye (Dacryoadenitis, Scleritis, Keratitis, Choroiditis, Retinitis, Chorioretinitis, Blepharitis, Conjunctivitis, Iritis, Uveitis) · ear (Otitis, Labyrinthitis, Mastoiditis)

Cardiovascular	Carditis (Endocarditis, Myocarditis, Pericarditis) · Vasculitis (Arteritis, Phlebitis, Capillaritis)

Respiratory	upper (Sinusitis, Rhinitis, Pharyngitis, Laryngitis) · lower (Tracheitis, Bronchitis, Bronchiolitis, Pneumonitis, Pleuritis) · Mediastinitis

Digestive	mouth (Stomatitis, Gingivitis, Gingivostomatitis, Glossitis, Tonsillitis, Sialadenitis/Parotitis, Cheilitis, Pulpitis, Gnathitis) · tract (Esophagitis, Gastritis, Gastroenteritis, Enteritis, Colitis, Enterocolitis, Duodenitis, Ileitis, Caecitis, Appendicitis, Proctitis) · accessory (Hepatitis, Cholangitis, Cholecystitis, Pancreatitis) · Peritonitis

Integumentary	Dermatitis (Folliculitis) · Cellulitis · Hidradenitis

Musculoskeletal	Arthritis · Dermatomyositis · soft tissue (Myositis, Synovitis/Tenosynovitis, Bursitis, Enthesitis, Fasciitis, Capsulitis, Epicondylitis, Tendinitis, Panniculitis) Osteochondritis: Osteitis (Spondylitis, Periostitis) · Chondritis

Urinary	Nephritis (Glomerulonephritis, Pyelonephritis) · Ureteritis · Cystitis · Urethritis

Reproductive	female: Oophoritis · Salpingitis · Endometritis · Parametritis · Cervicitis · Vaginitis · Vulvitis · Mastitis male: Orchitis · Epididymitis · Prostatitis · Balanitis · Balanoposthitis pregnancy/newborn: Chorioamnionitis · Omphalitis

Endocrine	Insulitis · Hypophysitis · Thyroiditis · Parathyroiditis · Adrenalitis

Lymphatic	Lymphangitis · Lymphadenitis

Digestive system · Digestive disease · Gastroenterology (primarily K20–K93, 530–579)

Upper GI tract

Esophagus	Esophagitis (Candidal, Herpetiform) · rupture (Boerhaave syndrome, Mallory-Weiss syndrome) · UES (Zenker's diverticulum) · LES (Barrett's esophagus) · Esophageal motility disorder (Nutcracker esophagus, Achalasia, Diffuse esophageal spasm, Gastroesophageal reflux disease (GERD)) · Laryngopharyngeal reflux (LPR) · Esophageal stricture · Megaesophagus

Stomach	Gastritis (Atrophic, Ménétrier's disease, Gastroenteritis) · Peptic (gastric) ulcer (Cushing ulcer, Dieulafoy's lesion) · Dyspepsia · Pyloric stenosis · Achlorhydria · Gastroparesis · Gastroptosis · Portal hypertensive gastropathy · Gastric antral vascular ectasia · Gastric dumping syndrome · Gastric volvulus

Lower GI tract:
Intestinal/
enteropathy

Small intestine/ (duodenum/jejunum/ileum)	Enteritis (Duodenitis, Jejunitis, Ileitis) — Peptic (duodenal) ulcer (Curling's ulcer) — Malabsorption: Coeliac · Tropical sprue · Blind loop syndrome · small bowel bacterial overgrowth syndrome · Whipple's · Short bowel syndrome · Steatorrhea · Milroy disease · bile acid malabsorption

Large intestine (appendix/colon)	Appendicitis · Colitis (Pseudomembranous, Ulcerative, Ischemic, Microscopic, Collagenous, Lymphocytic) · Functional colonic disease (IBS, Intestinal pseudoobstruction/Ogilvie syndrome) — Megacolon/Toxic megacolon · Diverticulitis/Diverticulosis

Large and/or small	Enterocolitis (Necrotizing) · 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

Anal canal	Anal fissure/Anal fistula · Anal abscess · Anal dysplasia · Pruritus ani

GI bleeding/BIS

Upper (Hematemesis, Melena) · Lower (Hematochezia)

Accessory

Liver	Hepatitis (Viral hepatitis, Autoimmune hepatitis, Alcoholic hepatitis) · Cirrhosis (PBC) · Fatty liver (NASH) · 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

Gallbladder	Cholecystitis · Gallstones/Cholecystolithiasis · Cholesterolosis · Rokitansky-Aschoff sinuses · Postcholecystectomy syndrome · Porcelain gallbladder

Bile duct/ other biliary tree	Cholangitis (PSC, Secondary sclerosing cholangitis, Ascending) · Cholestasis/Mirizzi's syndrome · Biliary fistula · Haemobilia · Gallstones/Cholelithiasis common bile duct (Choledocholithiasis, Biliary dyskinesia) · Sphincter of Oddi dysfunction

Pancreatic	Pancreatitis (Acute, Chronic, Hereditary, Pancreatic abscess) · Pancreatic pseudocyst · Exocrine pancreatic insufficiency · Pancreatic fistula

Abdominopelvic

Hernia	Diaphragmatic (Congenital) · Hiatus Inguinal (Indirect, Direct) · Umbilical · Femoral · Obturator · Spigelian lumbar (Petit's, Grynfeltt-Lesshaft) undefined location (Incisional · Internal hernia)

Peritoneal	Peritonitis (Spontaneous bacterial peritonitis) · Hemoperitoneum · Pneumoperitoneum

M: DIG

anat(t, g, p)/phys/devp/enzy

noco/cong/tumr, sysi/epon

proc, drug(A2A/2B/3/4/5/6/7/14/16), blte