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Summary of histological features of the 13 cases of SRUS
| Histological features | No. of cases n:13 | % |
|---|---|---|
| Crypts' distortion | 13 | 100 |
| Surface serration | 13 | 100 |
| Diamond crypts | 7 | 54.0 |
| Crypts' branching | 3 | 23.0 |
| Fibromuscular obliteration | 13 | 100 |
| Vascular changes | ||
| Ectasis | 13 | 100 |
| Congestion | 5 | 38.4 |
| Thrombosis | 0 | 0 |
| Hyaline changes | 0 | 0 |
| Inflammation | ||
| Acute | 7 | 54.0 |
| Chronic | 10 | 73.0 |
| Erosion | 8 | 61.5 |
| Immunohistochemistry | ||
| SMA in 9 cases | 9 | 100 |
