The original Hinchey classification was based on perioperative surgical finding. It has been later modified by Sher et al.:
| Stage | Description |
|---|---|
| I | Pericolic abscess |
| IIa | Distant abscess amendable to percutaneous drainage |
| IIb | Complex abscess associated with fistula |
| III | Generalized purulent peritonitis |
In July 2005, Radiology published a consensus proposal for reporting in CT colonography. It has similar purpose and structure as Bi-RADS reporting system in breast imaging. According to this proposal, lesions and massess should be describes by:
In 1977, a grading system of gastroesophageal reflux on barium study was devised. It is based on the extent of retrograde flow of barium.
| Grade | Description |
|---|---|
| I | reflux into distal esophagus only |
| II | reflux extending above carina |
| III | reflux into cervical esophagus |
| IV | free persistent reflux into cervical esopagus with a wide open cardia (chalasia) |