The patient was a 69-year-old multiparous female (gravida/para, 3/3) who had hypertension and arrhythmia. Her history included cerebral infarction treated with conservative therapy. She visited our hospital for atypical genital bleeding. She was diagnosed with atypical glandular cells (AGC) based on cervical cytology, atypical cells in endometrial cytology, and atypical endometrial hyperplasia on preoperative endometrial biopsy, and underwent total laparoscopic hysterectomy. However, in a postoperative pathologic examination, she was diagnosed with stage IB1 cervical adenocarcinoma without endometrial abnormality. AGC appeared in cervical cytology before surgery, but a surgical plan was not made with consideration of cervical adenocarcinoma.