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－25－

Yamagata Med J（ISSN 0288-030X）2022；40

伊藤，小島原，髙橋，福長，手塚

（1）

：21-26

DOI 10.15022/00005303

Endometrioid carcinoma grade 1 with endometrial localization

and solitary recurrence in the para-aortic lymph node

3.5 years after surgery: A case report

Yasufumi Ito＊，＊＊， Takanobu Kojimahara＊， Kanako Takahashi＊，

Takeshi Fukunaga＊， Naohiro Tezuka＊

Department of Obstetrics and Gynecology, Okitama General Hospital

＊＊

Department of Obstetrics and Gynecology, Yamagata University Faculty of Medicine

ABSTRACT

Cases of uterine body cancer are increasing every year, with more than half of the cases being

those of stage I cancer. Lymph node dissection may be omitted in some cases, especially in patients

with stage IA cancer, who are presumed to be at low risk for recurrence. Herein, we report the case

of a 60-year-old woman who presented with the chief complaint of irregular genital bleeding and was

diagnosed with grade 1 endometrial carcinoma（uterine cancer with <50% myometrial invasion）

The initial surgery was performed without lymph node dissection. As the patient was in the lowrisk group for recurrence, no postoperative adjuvant therapy was administered. However, 3.5 years

postoperatively, she experienced a solitary recurrence in a paraaortic lymph node and underwent

nodal excision. The patient completed docetaxel and cyclophosphamide therapy and has remained

recurrence-free for 2.5 years. According to the literature, the estimated recurrence rate of grade 1

endometrial carcinoma is approximately 1%. The decision to perform lymph node dissection in such

cases should be based not only on therapeutic value but also on the risk of adverse events. This case

serves as a reminder that the recurrence rate is not zero even in the low-risk group.

Keywords: endometrial cancer, solitary recurrence in the para-aortic lymph node, risk for recurrence,

lymph node dissection

－26－

...