RESUMO
Carcinomas are malignant neoplasms composed of epithelial cells and epithelial cancers are rare in the young. When it comes to colorectal carcinoma, the incidence of the large bowel has been noted with increasing frequency in the younger population, but this disease has remained very rare in children. Only 1% of all malignant growths of the large intestine arise in persons under 20 years of age. Inspite of these facts, the colon is the most common site of gastrointestinal carcinoma in children. While the prognosis is relatively acceptable in adults, it is very gloomy in children. Of all the histologic categories of colorectal cancer, the mucinous variety, which accounts for approximately 15% of adult colorectal carcinoma, is the predominant histologic variety in patients younger than 20 years of age at the time of diagnosis. Now, only two cases of carcinoma of the colon in children under 15 years of age have been reported in Korea. We report a case of mucinous adenocarcinoma of the colon in a 14-year-old boy with a brief review of the cases on record.