High-grade cervical lesions with glandular involvement are not invasive carcinoma of the cervix. High-grade cervical lesions are now called precancerous cervical lesions. High-grade cervical lesions should be treated because if left untreated, they may progress to invasive cancer. Severe heterogeneous hyperplasia is a precancerous lesion, but it is not a cancer, and it is not an invasive carcinoma. Progression of grade III intraepithelial neoplasia then becomes early invasive carcinoma. Early invasive carcinoma is one that breaks through the basal layer to a depth of <5 mm and a width of >7 mm.Early invasive carcinoma progresses to become invasive carcinoma to a depth of >5 mm or a width of >7 mm. Therefore, high grade cervical lesions with glandular involvement are not invasive carcinoma of the cervix.