Search

Your search keyword '"Michi, Yasuyuki"' showing total 29 results
Start Over Author "Michi, Yasuyuki" Search Limiters Full Text
29 results on '"Michi, Yasuyuki"'

5. Invasion of the bucco-mandibular space by oral squamous cell carcinoma: histopathological analysis of invasion pattern

Author

Kugimoto, Takuma, primary, Nishii, Naoto, additional, Oikawa, Yu, additional, Kuroshima, Takeshi, additional, Hirai, Hideaki, additional, Tomioka, Hirofumi, additional, Michi, Yasuyuki, additional, Kayamori, Kou, additional, Sakamoto, Junichiro, additional, Iwanaga, Joe, additional, Tubbs, R. Shane, additional, Ikeda, Tohru, additional, Miura, Masahiko, additional, and Harada, Hiroyuki, additional

Published
2023
Full Text
View/download PDF

7. Buccinator muscle invasion is a risk factor for cervical lymph node metastasis in squamous cell carcinoma of the buccal mucosa: A retrospective study

Author

Hirai, Hideaki, primary, Nishii, Naoto, additional, Oikawa, Yu, additional, Ohsako, Toshimitsu, additional, Kugimoto, Takuma, additional, Kuroshima, Takeshi, additional, Tomioka, Hirofumi, additional, Michi, Yasuyuki, additional, Kayamori, Kou, additional, Ikeda, Tohru, additional, and Harada, Hiroyuki, additional

Published
2023
Full Text
View/download PDF

8. Protocol for a multicentre, prospective observational study of elective neck dissection for clinically node-negative oral tongue squamous cell carcinoma (END-TC study)

Author

Yanamoto, Souichi, primary, Michi, Yasuyuki, additional, Otsuru, Mitsunobu, additional, Inomata, Toru, additional, Nakayama, Hideki, additional, Nomura, Takeshi, additional, Hasegawa, Takumi, additional, Yamamura, Yoshiko, additional, Yamada, Shin-ichi, additional, Kusukawa, Jingo, additional, Yamakawa, Nobuhiro, additional, Hasegawa, On, additional, Ueda, Michihiro, additional, Kitagawa, Yoshimasa, additional, Hiraki, Akimitsu, additional, Hasegawa, Toshihiro, additional, Ohiro, Yoichi, additional, Kobayashi, Wataru, additional, Asoda, Seiji, additional, Kobayashi, Takanori, additional, Iino, Mitsuyoshi, additional, Fukuda, Masayuki, additional, Ishibashi-Kanno, Naomi, additional, Kawaguchi, Koji, additional, Aijima, Reona, additional, Noguchi, Kazuma, additional, Okura, Masaya, additional, Tanaka, Akira, additional, Sugiura, Tsuyoshi, additional, Shintani, Yukari, additional, Yagihara, Kazuhiro, additional, Yamashiro, Masashi, additional, Ota, Yoshihide, additional, Miyazaki, Akihiro, additional, Takeshita, Akinori, additional, Kawamata, Hitoshi, additional, Hiroshi, Iwabuchi, additional, Uchida, Kenichiro, additional, Umeda, Masahiro, additional, Kurita, Hiroshi, additional, and Kirita, Tadaaki, additional

Published
2022
Full Text
View/download PDF

10. Comprehensive Genomic Profiling Reveals Clinical Associations in Response to Immune Therapy in Head and Neck Cancer

Author

Noji, Rika, primary, Tohyama, Kohki, additional, Kugimoto, Takuma, additional, Kuroshima, Takeshi, additional, Hirai, Hideaki, additional, Tomioka, Hirofumi, additional, Michi, Yasuyuki, additional, Tasaki, Akihisa, additional, Ohno, Kazuchika, additional, Ariizumi, Yosuke, additional, Onishi, Iichiroh, additional, Suenaga, Mitsukuni, additional, Mori, Takehiko, additional, Okamoto, Ryuichi, additional, Yoshimura, Ryoichi, additional, Miura, Masahiko, additional, Asakage, Takahiro, additional, Miyake, Satoshi, additional, Ikeda, Sadakatsu, additional, Harada, Hiroyuki, additional, and Kano, Yoshihito, additional

Published
2022
Full Text
View/download PDF

11. Protocol for a multicentre, prospective observational study of elective neck dissection for clinically node-negative oral tongue squamous cell carcinoma (END-TC study)

Author

Yanamoto, Souichi, Michi, Yasuyuki, Otsuru, Mitsunobu, Inomata, Toru, Nakayama, Hideki, Nomura, Takeshi, Hasegawa, Takumi, Yamamura, Yoshiko, Yamada, Shin-ichi, Kusukawa, Jingo, Yamakawa, Nobuhiro, Hasegawa, On, Ueda, Michihiro, Kitagawa, Yoshimasa, Hiraki, Akimitsu, Hasegawa, Toshihiro, Ohiro, Yoichi, Kobayashi, Wataru, Asoda, Seiji, Kobayashi, Takanori, Iino, Mitsuyoshi, Fukuda, Masayuki, Ishibashi-Kanno, Naomi, Kawaguchi, Koji, Aijima, Reona, Noguchi, Kazuma, Okura, Masaya, Tanaka, Akira, Sugiura, Tsuyoshi, Shintani, Yukari, Yagihara, Kazuhiro, Yamashiro, Masashi, Ota, Yoshihide, Miyazaki, Akihiro, Takeshita, Akinori, Kawamata, Hitoshi, Hiroshi, Iwabuchi, Uchida, Kenichiro, Umeda, Masahiro, Kurita, Hiroshi, Kirita, Tadaaki, Yanamoto, Souichi, Michi, Yasuyuki, Otsuru, Mitsunobu, Inomata, Toru, Nakayama, Hideki, Nomura, Takeshi, Hasegawa, Takumi, Yamamura, Yoshiko, Yamada, Shin-ichi, Kusukawa, Jingo, Yamakawa, Nobuhiro, Hasegawa, On, Ueda, Michihiro, Kitagawa, Yoshimasa, Hiraki, Akimitsu, Hasegawa, Toshihiro, Ohiro, Yoichi, Kobayashi, Wataru, Asoda, Seiji, Kobayashi, Takanori, Iino, Mitsuyoshi, Fukuda, Masayuki, Ishibashi-Kanno, Naomi, Kawaguchi, Koji, Aijima, Reona, Noguchi, Kazuma, Okura, Masaya, Tanaka, Akira, Sugiura, Tsuyoshi, Shintani, Yukari, Yagihara, Kazuhiro, Yamashiro, Masashi, Ota, Yoshihide, Miyazaki, Akihiro, Takeshita, Akinori, Kawamata, Hitoshi, Hiroshi, Iwabuchi, Uchida, Kenichiro, Umeda, Masahiro, Kurita, Hiroshi, and Kirita, Tadaaki

Abstract

Introduction In early-stage oral tongue squamous cell carcinoma (OTSCC), elective neck dissection (END) is recommended when occult lymph node metastasis is suspected; however, there is no unanimous consensus on the risks and benefits of END in such cases. The management of clinically node-negative (cN0) OTSCC remains controversial. This study, therefore, aimed to evaluate the efficacy of END and its impact on the quality of life (QoL) of patients with cN0 OTSCC. Methods and analysis This is a prospective, multicentre, nonrandomised observational study. The choice of whether to perform END at the same time as resection of the primary tumour is based on institutional policy and patient preference. The primary endpoint of this study is 3-year overall survival. The secondary endpoints are 3-year disease-specific survival, 3-year relapse-free survival and the impact on patient QoL. Propensity score-matching analysis will be performed to reduce selection bias. Ethics and dissemination This study was approved by the Clinical Research Review Board of the Nagasaki University. The protocol of this study was registered at the University Hospital Medical Information Network Clinical Trials Registry. The datasets generated during the current study will be available from the corresponding author on reasonable request. The results will be disseminated internationally, through scientific and professional conferences and in peer-reviewed medical journals., BMJ open, 12 (9), art. no. e059615; 2022

Published
2022

12. Epithelial-Myoepithelial Carcinoma of the Minor Salivary Glands: Case Series with Comprehensive Review

Author

Okuyama, Kohei, primary, Michi, Yasuyuki, additional, Kashima, Yoshihisa, additional, Tomioka, Hirofumi, additional, Hirai, Hideaki, additional, Yokokawa, Misaki, additional, Yamagata, Yuko, additional, Kuroshima, Takeshi, additional, Sato, Yuriko, additional, Tsuchiya, Maiko, additional, Kayamori, Kou, additional, Ikeda, Tohru, additional, and Harada, Hiroyuki, additional

Published
2021
Full Text
View/download PDF

15. Comparison of Clinicopathological Characteristics Between the Anterior and Posterior Type of Squamous Cell Carcinoma of the Floor of the Mouth: The Anterior Type Is a Risk Factor for Multiple Primary Cancer

Author

Oikawa, Yu, primary, Tanaka, Kae, additional, Ohsako, Toshimitsu, additional, Kugimoto, Takuma, additional, Kuroshima, Takeshi, additional, Hirai, Hideaki, additional, Tomioka, Hirofumi, additional, Shimamoto, Hiroaki, additional, Michi, Yasuyuki, additional, Sakamoto, Kei, additional, Ikeda, Tohru, additional, and Harada, Hiroyuki, additional

Published
2021
Full Text
View/download PDF

17. Case Report: Hidden Oral Squamous Cell Carcinoma in Oral Somatic Symptom Disorder

Author

Suga, Takayuki, primary, Tu, Trang Thi Huyen, additional, Takenoshita, Miho, additional, Mikuzuki, Lou, additional, Umezaki, Yojiro, additional, Shimamoto, Hiroaki, additional, Michi, Yasuyuki, additional, Hong, Chaoli, additional, Abiko, Yoshihiro, additional, Ikeda, Tohru, additional, Uzawa, Narikazu, additional, Harada, Hiroyuki, additional, and Toyofuku, Akira, additional

Published
2021
Full Text
View/download PDF

19. Secretory carcinoma around Stensen’s duct misdiagnosed as salivary duct cyst

Author

Shibata, Eri, Morita, Kei-ichi, Kayamori, Kou, Maruiwa, Mayuko, Michi, Yasuyuki, Sato, Yukiko, Takeuchi, Kengo, Ikeda, Tohru, Harada, Hiroyuki, and Yoda, Tetsuya

Subjects
stomatognathic system, Case Report
Abstract

Secretory carcinoma (SC) of the salivary gland was identified in 2010, and it is characterized by a specific ETV6 gene arrangement. The most common primary site for SC is the parotid gland; however, SC around the Stensen’s duct is rare. Here we describe a rare case of a SC around the Stensen’s duct that was initially misdiagnosed as a salivary duct cyst. A 59-year-old woman presented with a mass in the region of the left parotid papilla. Magnetic resonance imaging (MRI) revealed a well-circumscribed lesion and enhancement with a rim and an inner wall-like part that appeared in the late phase. Based on the initial clinical and imaging findings, a salivary duct cyst of the parotid gland was diagnosed. However, the lesion was histopathologically diagnosed as a SC based on immunohistochemical findings. The tumor cells showed diffuse positive staining for AE1/AE3, vimentin, and mammaglobin and focal positive staining for S-100 protein, SOX-10, and DOG-1. Fluorescence in-situ hybridization revealed ETV6 gene rearrangement in the tumor. In cases of cystic lesions around the Stensen’s duct, clinicians should bear in mind that the possibility that they could be minor salivary gland cancers, such as SC.

Published
2020

20. Detection of Second Primary Malignancies of the Esophagus and Hypophraynx in Oral Squamous Cell Carcinoma Patients

Author

Matsui, Toshihiro, Okada, Takuya, Kawada, Kenro, Okuda, Masahumi, Ogo, Taichi, Nakajima, Yutaka, Kume, Yuichiro, Ryotokuji, Tairo, Hoshino, Akihiro, Tokairin, Yutaka, Michi, Yasuyuki, Harada, Hiroyuki, Nakajima, Yasuaki, and Kawano, Tatsuyuki

Subjects
squamous cell carcinoma, stomatognathic diseases, Field cancerization, General Otolaryngology, head and neck cancer, esophageal cancer, oral cancer, hypopharyngeal cancer, Original Research
Abstract

Objective To assess the usefulness of modified esophagogastroduodenoscopy (EGD) for the detection of second primary malignancies of the esophagus or hypopharynx in patients with oral squamous cell carcinoma and determine the association between the oral lesion subsite and esophageal or hypopharyngeal lesion occurrence. Study Design Retrospective review. Methods In total, 166 patients with oral squamous cell carcinoma without any established symptoms of esophageal or hypopharyngeal squamous cell carcinoma underwent modified EGD based on the Valsalva maneuver and U‐turn method, image‐enhanced endoscopy, and chromoendoscopy using Lugol's iodine for diagnosis. All suspected lesions were biopsied to determine the clinical stages and duplication rates. Odds ratios for the occurrence of duplicate lesions according to the oral lesion subsite were determined. Results In total, 37 esophageal and 16 hypopharyngeal lesions were detected. According to the Union for International Cancer Control/American Joint Committee on Cancer classification (2009), 75.7% and 5.4% esophageal lesions were classified as stage IA and IB, respectively, and 50% and 18.8% hypopharyngeal lesions as stage II and stage I, respectively. Approximately 59.1% and 50% esophageal and hypopharyngeal lesions, respectively, were successfully treated by endoscopic resection. Oral lesions involving the floor of the mouth were more frequently accompanied by second primary malignancies of the esophagus or hypopharynx. Conclusions Modified EGD is an effective noninvasive technique for early diagnosis and treatment of second primary malignancies of the esophagus and hypopharynx in patients with oral squamous cell carcinoma. In particular, patients with floor of the mouth lesions need close monitoring for hypopharyngeal and esophageal lesions. Level of Evidence 3b.

Published
2018

21. Non-surgical treatment for periodontitis and peri-implantitis: longitudinal clinical and bacteriological findings—A case report with a 7-year follow-up evaluation

Author

Shiba, Takahiko, primary, Watanabe, Takayasu, additional, Komatsu, Keiji, additional, Koyanagi, Tatsuro, additional, Nemoto, Takashi, additional, Ohsugi, Yujin, additional, Michi, Yasuyuki, additional, Katagiri, Sayaka, additional, Takeuchi, Yasuo, additional, Ishihara, Kazuyuki, additional, and Iwata, Takanori, additional

Published
2021
Full Text
View/download PDF

29. Effective staining method with iodine for leukoplakia and lesions surrounding squamous cell carcinomas of the tongue assessed by colorimetric analysis.

Author

Maeda K, Yamashiro M, Michi Y, Suzuki T, Ohyama Y, Okada N, and Amagasa T

Subjects
Adult, Aged, Aged, 80 and over, Carcinoma, Squamous Cell pathology, Epithelium pathology, Female, Gentian Violet, Humans, Hyperplasia, Leukoplakia, Oral pathology, Male, Middle Aged, Precancerous Conditions diagnosis, Precancerous Conditions pathology, Staining and Labeling methods, Tongue Neoplasms pathology, Carcinoma, Squamous Cell diagnosis, Colorimetry methods, Coloring Agents administration & dosage, Iodides administration & dosage, Leukoplakia, Oral diagnosis, Tongue Neoplasms diagnosis
Abstract

To determine whether staining with iodine solution provides an efficient criterion for determining the area of resection for the lesions surrounding squamous cell carcinoma (SCC) and leukoplakia of the tongue, we determined the optimum density of iodine solution and staining procedure and analyzed the color of lightly stained lesions (LSLs) in relation to the histopathologic findings. Sixty-five patients with SCC or leukoplakia of the tongue were divided into two groups: lesions stained with 3% Lugol solution and restained with either 5% Lugol solution (n=38) or 10% iodine glycerin (n=27). Among the lesions stained with 5% Lugol solution, significant differences were found in all color values. Color difference values (DeltaE*ab) using 3% and 5% Lugol solutions were significantly different between epithelial hyperplasia/mild epithelial dysplasia and moderate to severe dysplasia (P < 0.05). According to the evaluations of five clinicians in 46 LSLs, a distinctive boundary was most often obtained using 5% Lugol solution. These results suggest that the most effective method for obtaining a clear boundary and distinguishing moderate to severe dysplasia from mild or no epithelial dysplasia according to the measured color value was to stain with 3% followed by 5% Lugol solution.

Published
2009

Catalog

Books, media, physical & digital resources
See catalog results