Low-grade tubular adenoma of the sigmoid colon refers to tubular adenoma of the sigmoid colon with low-grade intraepithelial neoplasia, which is a benign tumor and a precancerous lesion.
Adenomas are common benign tumors of the gastrointestinal tract, but they have a certain risk of malignancy and can be classified into tubular adenomas, choriocapillaris adenomas, and chorioallantoic tubular adenomas, among which tubular adenomas have a lower risk of malignancy.
Intraepithelial neoplasia is a precancerous lesion used to describe the process of intraepithelial neoplasia to carcinoma in situ. Low-grade intraepithelial neoplasia consists of mild to moderate heteroproliferative hyperplasia, which refers to localized lesions with heteroproliferative cells involving <2/3 of the mucosal layers.
Generally low-grade tubular adenomas of the sigmoid colon require endoscopic treatment with mucosal resection or stripping, and patients are advised to consult with their specialists, choose the appropriate treatment according to their condition, and actively comply with medical advice.