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185 results on '"Yano, Mitsutake"'

18. Extragonadal recurrence of benign mature teratoma in the pouch of Douglas.

Author

Sato, Miho, Nasu, Kaei, Matsumoto, Harunobu, Konishi, Kota, Yasumi, Shunsuke, Sato, Yusuke, Yano, Mitsutake, and Kobayashi, Eiji

Subjects
TERATOMA, TRANSVAGINAL ultrasonography, RESTORATIVE proctocolectomy, GONADAL dysgenesis, MAGNETIC resonance imaging, BENIGN tumors, JAPANESE women, ANTI-NMDA receptor encephalitis
Abstract

Laparoscopic cystectomy for mature teratomas is associated with a high incidence of intraperitoneal spillage and tumor spread; however, extragonadal recurrence of this benign tumor is rare. We hereby present an additional case of extragonadal mature teratoma that recurred in the pouch of Douglas after ovarian cystectomy. A 43‐year‐old Japanese woman presented with atypical genital bleeding. A 7 cm mature teratoma was detected using transvaginal ultrasonography and magnetic resonance imaging. At 26 years old, she underwent bilateral cystectomy for bilateral mature teratoma of the ovary. During laparoscopic surgery, a cystic tumor appeared in the pouch of Douglas and was firmly adhered to the surrounding tissues. Both ovaries were normal. The resected tumor was diagnosed as extragonadal, benign, mature teratoma. To avoid the extragonadal recurrence of mature teratoma, removal of tumor contents from intraperitoneal spillage by lavage should be performed at the end of surgery. [ABSTRACT FROM AUTHOR]

Published
2024
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25. HER2-negative or low expression as an unfavorable prognostic factor in patients with stage I/II uterine carcinosarcoma

Author

Mizoguchi, Chiharu, primary, Nishikawa, Tadaaki, additional, Yoshida, Hiroshi, additional, Yamamoto, Kasumi, additional, Kitadai, Rui, additional, Sudo, Kazuki, additional, Shimoi, Tatsunori, additional, Miwa, Maiko, additional, Sato, Sho, additional, Shintani, Daisuke, additional, Kato, Tomomi, additional, Yano, Mitsutake, additional, Yasuda, Masanori, additional, Hirakawa, Akihiro, additional, Kato, Tomoyasu, additional, Hasegawa, Kosei, additional, and Yonemori, Kan, additional

Published
2022
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32. Clinicopathological features and programmed death-ligand 1 immunohistochemical expression in a multicenter cohort of uterine and ovarian melanomas: a retrospective study in Japan (KCOG-G1701s)

Author

Yano, Mitsutake, primary, Nasu, Kaei, additional, Yasuda, Masanori, additional, Katoh, Tomomi, additional, Kagabu, Masahiro, additional, Kobara, Hisanori, additional, Matsuura, Motoki, additional, Tokuyama, Osamu, additional, Yamawaki, Takaharu, additional, Wakahashi, Senn, additional, Noguchi, Tomoko, additional, Mizuno, Kaoruko, additional, Shitsukawa, Keiji, additional, Onohara, Yoshimasa, additional, Nakabori, Takashi, additional, Miyasaka, Aki, additional, Nakao, Takehiro, additional, Matsunaga, Tatsuya, additional, Kunimi, Yusuke, additional, Sakurai, Manabu, additional, Uchiyama, Aya, additional, Itoh, Ryoji, additional, Ohike, Nobuyuki, additional, Hirakawa, Takashi, additional, Watanabe, Tadashi, additional, Nishino, Koji, additional, Motohashi, Takashi, additional, and Ito, Kimihiko, additional

Published
2022
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35. A multi‐ethnic analysis of immune‐related gene expression signatures in patients with ovarian clear cell carcinoma

Author

Heong, Valerie, primary, Tan, Tuan Z, additional, Miwa, Maiko, additional, Ye, Jieru, additional, Lim, Diana, additional, Herrington, C Simon, additional, Iida, Yasushi, additional, Yano, Mitsutake, additional, Yasuda, Masanori, additional, Ngoi, Natalie YL, additional, Wong, SB Justin, additional, Okamoto, Aikou, additional, Gourley, Charlie, additional, Hasegawa, Kosei, additional, Tan, David SP, additional, and Huang, Ruby YJ, additional

Published
2021
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42. Correlation of World Health Organization 2010 Classification for Gastroenteropancreatic Neuroendocrine Neoplasms with the Prognosis of Ovarian Neuroendocrine Neoplasms: Kansai Clinical Oncology Group-Protocol Review Committee/Intergroup Study

Author

Kai, Kentaro, primary, Nasu, Kaei, additional, Nishida, Haruto, additional, Daa, Tsutomu, additional, Shikama, Ayumi, additional, Shiozaki, Takaya, additional, Kurakazu, Masamitsu, additional, Yano, Mitsutake, additional, Imamura, Yuko, additional, Tokunaga, Hideki, additional, Tasaki, Kazuto, additional, Iida, Yasushi, additional, Yamada, Yuki, additional, Morisawa, Hiroyuki, additional, Nakagawa, Satoshi, additional, Fujimoto, Etsuko, additional, Tsuruta, Tomohiko, additional, Matsumoto, Harunobu, additional, Arakawa, Atsushi, additional, Nonaka, Michiko, additional, Takano, Hirokuni, additional, Ushiwaka, Takashi, additional, Mori, Taisuke, additional, Ito, Kimihiko, additional, Motohashi, Takashi, additional, Teramoto, Norihiro, additional, and Yamada, Takashi, additional

Published
2020
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44. An Unusual Ovarian Mucinous Borderline Tumor with a Large Solid Component

Author

Kozawa, Eito, Inoue, Kaiji, Yano, Mitsutake, Yasuda, Masanori, Hasegawa, Kosei, Tanaka, Junji, Ichikawa, Tomoaki, and Niitsu, Mamoru

Subjects
Article Subject
Abstract

Herein, we report magnetic resonance imaging (MRI) findings of a mucinous borderline tumor of the ovary, which we observed as a mainly solid tumor with large solid components in the lower pelvic cavity. The appearance of ovarian epithelial tumors on imaging is often complex. Cystic to solid appearing masses may be observed, and they often resemble epithelial carcinoma. Due to mucinous or hemorrhage components of packed small or microcystic components, MRI depicts slightly high signal intensity on T1-weighted images and low signal intensity on T2-weighted images. Mucinous borderline tumor of the ovary with a large solid component is very rare, but it is clinically important to recognize the possibility of mucinous borderline tumor to avoid unnecessary surgical intervention.

Published
2019
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46. Clinicopathologic features, treatment, prognosis and prognostic factors of neuroendocrine carcinoma of the endometrium: a retrospective analysis of 42 cases from the Kansai Clinical Oncology Group/Intergroup study in Japan

Author

Matsumoto, Harunobu, primary, Shimokawa, Mototsugu, additional, Nasu, Kaei, additional, Shikama, Ayumi, additional, Shiozaki, Takaya, additional, Futagami, Masayuki, additional, Kai, Kentaro, additional, Nagano, Hiroaki, additional, Mori, Taisuke, additional, Yano, Mitsutake, additional, Sugino, Norihiro, additional, Fujimoto, Etsuko, additional, Yoshioka, Norihito, additional, Nakagawa, Satoshi, additional, Shimada, Muneaki, additional, Tokunaga, Hideki, additional, Yamada, Yuki, additional, Tsuruta, Tomohiko, additional, Tasaki, Kazuto, additional, Nishikawa, Ryutaro, additional, Kuji, Shiho, additional, Motohashi, Takashi, additional, Ito, Kimihiko, additional, Yamada, Takashi, additional, and Teramoto, Norihiro, additional

Published
2019
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47. Correlation of World Health Organization 2010 Classification for Gastroenteropancreatic Neuroendocrine Neoplasms with the Prognosis of Ovarian Neuroendocrine Neoplasms: Kansai Clinical Oncology Group-Protocol Review Committee/Intergroup Study.

Author

Kai, Kentaro, Nasu, Kaei, Nishida, Haruto, Daa, Tsutomu, Shikama, Ayumi, Shiozaki, Takaya, Kurakazu, Masamitsu, Yano, Mitsutake, Imamura, Yuko, Tokunaga, Hideki, Tasaki, Kazuto, Iida, Yasushi, Yamada, Yuki, Morisawa, Hiroyuki, Nakagawa, Satoshi, Fujimoto, Etsuko, Tsuruta, Tomohiko, Matsumoto, Harunobu, Arakawa, Atsushi, and Nonaka, Michiko

Subjects
OVARIAN tumors, PROGNOSIS, PARAGANGLIOMA, SMALL cell carcinoma, WORLD health, REVIEW committees
Abstract

Background: In 2014, the World Health Organization (WHO) released a classification system introducing neuroendocrine neoplasms (NENs) of the female reproductive tract, excluding the ovaries. This study aimed to evaluate whether retrospective adaption of the gastroenteropancreatic (GEP)-NEN classification is feasible for ovarian NENs (O-NENs) and correlates with prognosis. Methods: Sixty-eight patients diagnosed with carcinoid, small cell carcinoma (pulmonary type), paraganglioma, non-small/large cell neuroendocrine carcinoma (NEC), mixed NEC, or undifferentiated carcinomas at 20 institutions in Japan were included in this retrospective cross-sectional study. We identified O-NENs through central pathological review using a common slide set, followed by reclassification according to WHO 2010 guidelines for GEP-NENs. A proportional hazards model was used to assess the association of prognostic factors (age, stage, performance status, histology, and residual disease) with overall survival (OS) and progression-free survival (PFS). Results: Of the 68 enrolled patients, 48 were eligible for analysis. All carcinoids (n = 32) were reclassified as NET G1/G2, whereas 14 of 16 carcinomas were reclassified as NEC/mixed adeno-NEC (MANEC) (Fisher's exact test; p < 0.01). The OS/PFS was 49.0/42.5 months and 6.5/3.9 months for NET G1/G2 and NEC/MANEC, respectively. Histology revealed that NEC/MANEC was associated with increased risk of death (HR = 48.0; 95% CI, 3.93–586; p < 0.01) and disease progression (HR = 51.6; 95% CI, 5.54–480; p < 0.01). Conclusion: Retrospective adaption of GEP-NEN classification to O-NENs is feasible and correlates well with the prognosis of O-NENs. This classification could be introduced for ovarian tumors. [ABSTRACT FROM AUTHOR]

Published
2021
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