Research Article
Specimens from Biopsies of Colorectal Polyps Often Harbor Additional Diagnoses
Table 3
Additional diagnoses detected at colorectal biopsy for polyps.
| Additional diagnoses | Factors potentially contributing to diagnostic difficulty |
| Mucosal prolapse | Only small focus affected |
| Melanosis coli | Nonpolypoid mucosa preferentially affected | Polyps relatively or completely spared |
| Eosinophilic colitis | Confusion with reaction to adenoma | Clinically occult |
| Schistosomiasis | Minute ova | Affected nonpolypoid mucosa otherwise normal or focally normal | Clinically occult |
| Intestinal spirochetosis | Minute bacteria | Confined to nonpolypoid mucosa | Affected nonpolypoid mucosa otherwise normal | Clinically occult |
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