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Yoshida H, Kikuchi A, Tsuda H, Sakamoto A, Fukunaga M, Kaku T, Yoshida M, Shikama A, Kogata Y, Terao Y, Tanikawa M, Yasuoka T, Chiyoda T, Miyamoto T, Okadome M, Nakamura T, Enomoto T, Konno Y, Yahata H, Hirata Y, Aoki Y, Tokunaga H, Usui H, Yaegashi N. Discrepancies in pathological diagnosis of endometrial stromal sarcoma: a multi-institutional retrospective study from the Japanese Clinical Oncology Group. Hum Pathol 2022; 124:24-35. [PMID: 35339567 DOI: 10.1016/j.humpath.2022.03.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Revised: 03/14/2022] [Accepted: 03/16/2022] [Indexed: 11/04/2022]
Abstract
Endometrial stromal sarcoma (ESS) is a rare uterine malignancy that requires accurate pathological diagnosis for proper treatment. This study aimed to clarify the discrepancies in the pathological diagnosis of ESS and obtain practical clues to improve diagnostic accuracy. Between 2002 and 2015, 148 patients with low-grade ESS (LGESS), high-grade ESS (HGESS), undifferentiated endometrial sarcoma (UES), or undifferentiated uterine sarcoma (UUS) diagnosed at 31 institutions were included. We performed immunohistochemistry, real-time polymerase chain reaction for JAZF1-SUZ12 and YWHAE-NUTM2A/B, and break-apart fluorescent in situ hybridization for JAZF1, PHF1, and YWHAE. Central pathology review (CPR) was performed by six pathologists. After CPR, LGESS, HGESS, UES/UUS, and other diagnoses were confirmed in 72, 25, 16, and 31 cases, respectively. Diagnostic discrepancies were observed in 19.6% (18/92) of LGESS and 34% (18/53) of HGESS or UUS/UES. Adenosarcomas, endometrial carcinomas, carcinosarcomas, and leiomyosarcomas were common diagnostic pitfalls. JAZF1-SUZ12 transcript, PHF1 split signal, and YWHAE-NUTM2A/B transcript were mutually exclusively detected in 23 LGESS, 3 LGESS, and 1 LGESS plus 3 HGESS, respectively. JAZF1-SUZ12 and YWHAE-NUTM2A/B transcripts were detected only in cases with CPR diagnosis of LGESS or HGESS. The CPR diagnosis of LGESS, HGESS, and UUS was a significant prognosticator, and patients with LGESS depicted a favorable prognosis, while those with UUS showed the worst prognosis. Pathological diagnosis of ESS is often challenging and certain tumors should be carefully considered. The accurate pathological diagnosis with the aid of molecular testing is essential for prognostic prediction and treatment selection.
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Affiliation(s)
- Hiroshi Yoshida
- Department of Diagnostic Pathology, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, Japan.
| | - Akira Kikuchi
- Department of Gynecology, Niigata Cancer Center Hospital, 2-15-3, Chuo-ku, Kawagishicho Niigata, 951-8566, Japan
| | - Hitoshi Tsuda
- Department of Basic Pathology, National Defense Medical College, Tokorozawa, Saitama, 359-8513, Japan
| | - Atsuhiko Sakamoto
- Department of Pathology and Laboratory Medicine, Omori Red Cross Hospital, Tokyo, 143-8527, Japan
| | - Masaharu Fukunaga
- Department of Pathology, Shin-Yurigaoka General Hospital, kawasaki, Kanagawa, 215-0026, Japan
| | - Tsunehisa Kaku
- Center for Preventive Medicine, Fukuoka Sanno Hospital, Fukuoka, 814-0001, Japan
| | - Masayuki Yoshida
- Department of Diagnostic Pathology, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, Japan
| | - Ayumi Shikama
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, 569-8686, Japan
| | - Yuhei Kogata
- Department of Obstetrics and Gynecology, Osaka Medical and Pharmaceutical University, Tsukuba, Osaka, 569-8686, Japan
| | - Yasuhisa Terao
- Department of Obstetrics and Gynecology, Juntendo University Faculty of Medicine, Tokyo, 113-8431, Japan
| | - Michihiro Tanikawa
- Department of Obstetrics and Gynecology, Faculty of Medicine, The University of Tokyo, Tokyo, 113-8655, Japan
| | - Toshiaki Yasuoka
- Department of Obstetrics and Gynecology, Ehime University, Graduate School of Medicine, Toon, Ehime, 791-0295, Japan
| | - Tatsuyuki Chiyoda
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Tokyo, 160-0016, Japan
| | - Tsutomu Miyamoto
- Department of Obstetrics and Gynecology, Shinshu University School of Medicine, Matsumoto, 390-8621, Japan
| | - Masao Okadome
- Gynecology Service, National Hospital Organization Kyushu Cancer Center, Fukuoka, 811-1395, Japan
| | - Toshiaki Nakamura
- Department of Obstetrics and Gynecology, Perinatal Medical Center, Kagoshima City Hospital, Kagoshima, 890-8760, Japan
| | - Takayuki Enomoto
- Department of Obstetrics and Gynecology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, 951-8510, Japan
| | - Yosuke Konno
- Department of Gynecology, Hokkaido University Hospital, Sapporo, Hokkaido, 060-8638, Japan
| | - Hideaki Yahata
- Department of Obstetrics and Gynecology, Faculty of Medicine, Kyushu University, Fukuoka, 812-8582, Japan
| | - Yukihiro Hirata
- Department of Obstetrics and Gynecology, The Jikei University School of Medicine, Tokyo, 105-8461, Japan
| | - Yoichi Aoki
- Department of Obstetrics and Gynecology, Graduate School of Medicine, University of the Ryukyus, Uehara Nishihara, Okinawa, 903-0125 207, Japan
| | - Hideki Tokunaga
- Department of Obstetrics and Gynecology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, 980-8575, Japan
| | - Hirokazu Usui
- Department of Reproductive Medicine, Chiba University Graduate School of Medicine, Chiba, 260-8670, Japan
| | - Nobuo Yaegashi
- Department of Obstetrics and Gynecology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, 980-8575, Japan
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