Megacolon


Also found in: Dictionary, Thesaurus, Medical, Wikipedia.
Related to Megacolon: toxic megacolon

megacolon

[′meg·ə‚kō·lən]
(medicine)
Hypertrophy and dilation of the colon associated with prolonged constipation.

Megacolon

 

in man, enlargement of part or all of the colon.

Megacolon usually originates with congenital immaturity of the colon’s innervation apparatus. The clinical course of the condition is characterized by persistent constipation beginning in the first years (sometimes in the first months) of life. This, the most common form of megacolon, is called Hirschsprung’s disease. In adults, megacolon may be caused by the presence of mechanical obstructions (tumor, cicatricial stenosis). Treatment is surgical.

Mentioned in ?
References in periodicals archive ?
The purpose of this report is to describe the successful treatment of a feline with stenosis of the pelvic canal, megacolon, severe constipation and perineal hernia, emphasizing the combination of the use of the pelvic distraction technique with placement of two metal wires in spiral shapes, perineal hernia repair and subcolectomy.
Embora os dados clinicos, epidemiologicos e sorologicos nao (deixassem) duvida quanto a relacao etiologica entre a doenca de Chagas e o megaesofago e megacolon endemicos .
5%) patients expired within one week of emergency surgery (perforation, megacolon or massive bleeding) and were American Society of Anesthesiologists (ASA) grade III or IV.
Other intestinal complications such as megacolon (mostly asymptomatic), pseudoobstruction, sigmoid volvulus, and bowel perforation may also arise in severe conditions, although their exact incidence is still currently unknown [32, 37, 38, 48].
In its most extreme form it is capable of causing colitis, toxic megacolon, and death.
The boy was given a diagnosis of congenital Chagas disease accompanied by megacolon.
If undiagnosed or untreated, pseudomembranous colitis, toxic megacolon and death may result.
difficile causes disease that ranges in severity from asymptomatic colonisation to severe diarrhoea, pseudomembranous colitis (PMC), toxic megacolon, colonic perforation and death.
Post op complication 6% Perforation of viscus 24% Obstruction 40% Complicated hernla 12% Ischaemic bowel 8% Other - Anastomotic leak, toxic megacolon, bleeding 12% Ulcer Figure 1: Indication for emergency laparotomy Note: Table made from pie chart.
Clinically, the patient with toxic megacolon will develop marked colonic distention, peritoneal irritation, fever, and leukocytosis.
difficile can lead to sepsis (inflammation throughout the body that can cause organ failure), acidosis (a high acid level in body fluids), tachycardia (rapid heartbeat), colonic perforation (a hole in the colon wall), and toxic megacolon (a widened or dilated colon that receives inadequate blood flow); diarrhea can actually lessen in severe disease.