Table 3 Imaging Findings Used to Diagnose AMC
From: Symptoms and diagnostic criteria of acquired Megacolon - a systematic literature review
Author | Pub. Date | No. Pts | Physical Characteristics Observed in Patients Diagnosed with AMC | Modality |
|---|---|---|---|---|
Lane and Todd [19] | 1977 | 42 | Partial or total dilatation large bowel | BE |
Ryana [29] | 1982 | 6 | Patients dilated colon proximal to sigmoid | BE/AXR |
Preston et al. [9] | 1985 | 20 | Rectal diameter level S2 10+/− 3 cm (mean) Rectal diameter level pelvis brim 9.5+/− 2.4 cm (mean) Sigmoid diameter 10+/− 3.5 cm (mean) Descending diameter 7.2+/− 2.1 cm (mean) Transverse diameter 7.8+/− 1.4 cm (mean) Ascending diameter 8.2+/− 1.6 cm (mean) Conclusion that sigmoid width at pelvic brim greater than 6.5 cm abnormal | DCBE |
Stabile et al. [3] | 1991 | 40 | Subjective proximal colonic enlargement and loss of haustral pattern Descending colon “usually” greater than 6 cm Ascending colon “usually” greater than 8 cm | BE |
Koch et al. [35] | 1993 | 6 | Sigmoid diameter 6.5-15 cm (range), 10 cm (mean) | AXR |
Gattuso et al. [36] | 1996 | 3 | Rectal diameter 4-11 cm (range) Colon diameter 6-10 cm (range) | |
Meier-Ruge et al. [37] | 2006 | 63 | Distal and proximal colon circumference hemicolectomy 9-12 cm | Specimen |
Iantorno et al. [24] | 2007 | 9 | Sigmoid diameter 10+/− 2 cm (mean) | BE |