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166 results on '"Munakata, Satoru"'

5. Clinical outcomes of sentinel node navigation surgery in patients with preoperative estimated stage IA endometrial cancer and evaluation of validity for continuing sentinel node navigation surgery based on dispersion of recurrence probability

Author

YAMASHITA, TSUYOSHI, primary, Itoh, Takahiro, additional, Asano, Takuya, additional, Suina, Asuka, additional, Nishimori, Mitsutaka, additional, Munakata, Satoru, additional, and Satoh, Hideki, additional

Published
2023
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7. Hybrid robot-assisted abdominoperineal resection supported by simultaneous trans-perineal approach for anal gland adenocarcinoma with vaginal invasion: a case report

Author

Imaizumi, Ken, primary, Kasajima, Hiroyuki, additional, Ito, Keiichiro, additional, Fukasawa, Takumu, additional, Odagiri, Makoto, additional, Yamana, Daisuke, additional, Tsuruga, Yosuke, additional, Umehara, Minoru, additional, Kurushima, Michihiro, additional, Munakata, Satoru, additional, Shimoyama, Norihiko, additional, and Nakanishi, Kazuaki, additional

Published
2023
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8. Enhanced immune reaction resulting from co-vaccination of WT1 helper peptide assessed on PET-CT

Author

Nakata, Jun, Isohashi, Kayako, Morimoto, Soyoko, Itou, Ryota, Kamiya, Takashi, Matsuura, Ai, Nakajima, Hiroko, Fujiki, Fumihiro, Nishida, Sumiyuki, Hasii, Yoshiko, Hasegawa, Kana, Nakatsuka, Shinichi, Hosen, Naoki, Tsuboi, Akihiro, Oka, Yoshihiro, Kumanogoh, Atsushi, Shibano, Masaru, Munakata, Satoru, Oji, Yusuke, Hatazawa, Jun, and Sugiyama, Haruo

Published
2020
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10. Anal Cancer with Pagetoid Spread—A Case Report—

Author

KOMATSU, Shigeki, primary, IMAIZUMI, Ken, additional, SATO, Aya, additional, YAMANA, Daisuke, additional, KASAJIMA, Hiroyuki, additional, MUNAKATA, Satoru, additional, SHIMOYAMA, Norihiko, additional, and NAKANISHI, Kazuaki, additional

Published
2023
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23. Detection ofMEAF6‐PHF1translocation in an endometrial stromal nodule

Author

Nomura, Yusuke, primary, Tamura, Daisuke, additional, Horie, Masafumi, additional, Sato, Masakazu, additional, Sasaki, Shinya, additional, Yamamoto, Yohei, additional, Kudo‐Asabe, Yukitsugu, additional, Umakoshi, Michinobu, additional, Koyama, Kei, additional, Makino, Kenichi, additional, Takashima, Shinogu, additional, Imai, Kazuhiro, additional, Minamiya, Yoshihiro, additional, Munakata, Satoru, additional, Yachida, Shinichi, additional, Terada, Yukihiro, additional, Goto, Akiteru, additional, and Maeda, Daichi, additional

Published
2020
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24. A Case of Epithelioid Angiomyolipoma of the Kidney with Tumor Thrombus Extending into the Renal Vein : Case Report

Author

Ito, Takuya, Shiba, Masahiro, Sekii, Yosuke, Takeda, Ken, Munakata, Satoru, and Takayama, Hitoshi

Subjects
Epithelioid angiomyolipoma, 494.9, Renal tumor, Tumor thrombus
Abstract

A 31-year-old man was referred to our hospital for macroscopic hematuria. An abdominal computed tomography (CT) scan showed a 36×30 mm enhancing left renal tumor with tumor thrombus extending into the left renal vein. Therefore, we diagnosed the tumor as a clinically classified cT3aN0M0 left renal cell carcinoma. Retroperitoneal laparoscopic radical left nephrectomy with renal vein thrombectomy was performed, with removal of the left kidney with the mass and tumor thrombus en bloc. The pathological diagnosis was epithelioid angiomyolipoma (EAML) of the left kidney. EAML is a rare tumor with malignant potential. In this case, although no signs of recurrence or metastasis have been observed for 9 months post-operation, we recommended a careful follow-up regimen.

Published
2017

27. Metastasis to the Tongue from Renal Cell Carcinoma 10 Years after Nephrectomy : A Case Report

Author

Wang, Cong, Takeda, Ken, Shiba, Masahiro, Takayama, Hitoshi, and Munakata, Satoru

Subjects
Tongue metastasis, 494.9, Renal cell carcinoma
Abstract

A 71-year-old woman underwent left radical nephrectomy for renal cell carcinoma (clear cell carcinoma, pT1bN0M0) ten years previously. She noticed a tumor on the tip of her tongue and was admitted for dental and oral surgery. The tumor was about 10 mm in size, and tumor resection was done. It was pathologically diagnosed as clear cell carcinoma, which was metastasis of renal cell carcinoma. Computer tomography scan during the same period revealed left hilar lymph node and bilateral lung metastases. We chose to use sunitinib as the treatment for the metastases. Computer tomography revealed a complete response (CR) after sunitinib treatment was given for 10 months, and we are still continuing the treatment to maintain the CR status.

Published
2016

28. A Case of Arteriovenous Malformation Located in Retroperitoneum

Author

Wang, Cong, Takeda, Ken, Shiba, Masahiro, Takayama, Hitoshi, and Munakata, Satoru

Subjects
Arteriovenous malformation, 494.9, Retroperitoneal tumor
Abstract

A 67-year-old woman was referred to our hospital for precise examination and treatment as an abdominal computed tomographic (CT) scan showed a retroperitoneal tumor located below the hilus of the rightkidney. The enhanced CT and magnetic resonance imaging (MRI) revealed contrastenhancementin both early and late phase, which confirmed that the tumor showed abundant blood perfusion and adhered to the duodenum. We performed open surgery in order to remove the tumor and make a precise diagnosis. The tumor was excised en bloc with a part of the gonadal vein because the right gonadal vein was adjacent to the tumor in the craniocaudal direction. The pathological diagnosis was arteriovenous malformation. Arteriovenous malformation located in the retroperitoneum is very rare.

Published
2016

29. Case Report of Atypical Juxtaglomerular Cell Tumor

Author

Munakata, Satoru, Tomiyama, Eisuke, and Takayama, Hitoshi

Subjects
Article Subject
Abstract

Juxtaglomerular cell tumor (JGCT) is a rare renal tumor, producing renin and behaving almost in a benign fashion. So far, only three cases have been reported as malignant. We report a rare case with atypical JGCT. A 74-year-old male was referred to our hospital due to hypertension, proteinuria, and hematuria. Abdominal CT revealed a mass measured in 9.7×7.0 cm in the lower portion of the right kidney. Right kidney was removed laparoscopically. Grossly, white to tan tumor with massive hemorrhage and necrosis occupied the lower portion of the right kidney. Microscopically, tumor grew in a solid fashion. Tumor cells were polygonal to ovoid cells with round nuclei and clear to eosinophilic cytoplasm. Mitosis was found in 5 per 10 HPF. Immunohistochemically, tumor cells were stained by vimentin and CD34. Some tumor cells were also positive for renin. Electron micrograph showed near rhomboid crystalline structure in the tumor cells. Because of massive necrosis and mitotic figures, diagnosis of atypical (potentially malignant) JGCT was rendered. Gene mutations for IDH1, PIK3CA, K-ras, N-ras, Braf, and EGFR were not found by MBP-QP system.

Published
2018
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31. Malignant Transformation of Mature Cystic Teratoma Diagnosed after a 10-Year Interval

Author

Jitsumori, Mariko, Munakata, Satoru, and Yamamoto, Toshiya

Subjects
Article Subject
Abstract

A 67-year-old uniparous woman had undergone surgery for acute perforated gastric ulcer 10 years prior to the current presentation. Although abdominal computed tomography (CT) performed at that point had revealed a mature cystic teratoma measuring 6 cm in diameter in the right ovary, it was left untreated. She visited the department of surgery at our hospital with chief complaints of appetite loss, nausea, and vomiting that had persisted for the prior two weeks. She was admitted with a diagnosis of ileus attributed to an abdominal incisional hernia. CT performed on admission revealed a tumor measuring 21 cm in diameter with mural nodules in the right ovary. Thus, surgery was performed under suspicion of malignant transformation of the previously detected ovarian mature cystic teratoma. While neither lymphadenopathy nor distant metastasis was detected by imaging studies, bilateral adnexectomy and repair of the abdominal incisional hernia were performed. Cytology of ascites was negative. The postoperative pathological diagnosis was squamous cell carcinoma arising from teratoma, and the postoperative clinical diagnosis was stage IA ovarian cancer. It was assumed that the mature cystic teratoma which had been detected in the right ovary 10 years earlier had undergone malignant transformation.

Published
2017
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34. Mature Cystic Teratoma in Douglas’ Pouch

Author

Ohshima, Kenji, Umeda, Anna, Hosoi, Ayako, Yamamoto, Toshiya, and Munakata, Satoru

Subjects
endocrine system, endocrine system diseases, Article Subject, urologic and male genital diseases, neoplasms, female genital diseases and pregnancy complications
Abstract

Mature cystic teratoma is one of the most common ovarian neoplasms, but extragonadal teratoma is rare. Teratoma in Douglas’ pouch is extremely rare, and only 12 cases have been reported since the first case was described in 1978. We report a 20-year-old woman with a multicystic mass in Douglas’ pouch that was treated via laparoscopic resection. The tumor consisted of cysts lined by stratified squamous epithelium with an accumulation of keratin debris and various mature tissues. No immature elements or malignancy was found in the tumor, confirming the pathologic diagnosis of a mature cystic teratoma. The teratoma contained no ovarian tissues and both of the ovaries were intact on laparoscopy. These findings suggest that the teratoma originated primarily in Douglas’ pouch rather than being caused by autoamputation of a previously existing ovarian teratoma. This is the first case that simultaneously showed normal ovaries and a teratoma in Douglas’ pouch on laparoscopy.

Published
2015
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