A faecaloma is a mass of feces most frequently noted in the rectum and sigmoid colon, that is much harder than a fecal impaction due to coprostasis.
Symptoms are nonspecific and include constipation, abdominal pain, anorexia, nausea or vomiting, overflow diarrhea, fecal incontinence and urinary symptoms from pressure.
Usually, the fecal matter accumulates in the intestine, then stagnates and increases in volume until the intestine becomes deformed and acquires characteristics similar to those of a tumor.
A faecaloma should be considered when there is evidence of focal fecal material of equal or greater diameter than the colon.
There are several causes of faecaloma and have been described in association with
- Hirschsprung's disease
- psychiatric patients
- Chagas disease
- both inflammatory and neoplastic conditions
- patients suffering from chronic constipation
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