Search

Your search keyword '"Michi, Yasuyuki"' showing total 194 results
Start Over Author "Michi, Yasuyuki" Publication Year Range Last 50 years
194 results on '"Michi, Yasuyuki"'

11. 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

13. 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

15. High expression of Sam68 contributes to metastasis by regulating vimentin expression and a motile phenotype in oral squamous cell carcinoma

Author

Komiyama, Takuya, primary, Kuroshima, Takeshi, additional, Sugasawa, Takehito, additional, Fujita, Shin-Ichiro, additional, Ikami, Yuta, additional, Hirai, Hideaki, additional, Tsushima, Fumihiko, additional, Michi, Yasuyuki, additional, Kayamori, Kou, additional, Higashino, Fumihiro, additional, and Harada, Hiroyuki, additional

Published
2022
Full Text
View/download PDF

16. 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

19. 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

20. 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

21. 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

26. 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

27. Epithelial-Myoepithelial Carcinoma of The Minor Salivary Glands: Report of Two Cases with Literature Review

Author

Okuyama, Kohei, primary, Michi, Yasuyuki, additional, Kashima, Yoshihisa, additional, Tomioka, Hirofumi, additional, Hiral, 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

30. 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

32. 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

33. 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

35. Clinical Investigation of Diffuse Large B-cell Lymphoma Exhibiting Initial Symptoms in the Maxilla and Mandible

Author

Michi, Yasuyuki, primary, Harada, Hiroyuki, additional, Oikawa, Yu, additional, Okuyama, Kohei, additional, Kugumoto, Takuma, additional, Kuroshima, Takeshi, additional, Hirai, Hideaki, additional, Mochizuki, Yumi, additional, Simamoto, Hiroaki, additional, Tomioka, Hirofumi, additional, Kachi, Hirokazu, additional, Sakamoto, Junichiro, additional, Kayamaori, Kou, additional, and Yoda, Tetsuya, additional

Published
2021
Full Text
View/download PDF

36. The clinical utility of comprehensive genomic profiling for recurrent / metastatic head and neck cancer

Author

Tohyama, Kohki, primary, Kano, Yoshihito, additional, Noji, Rika, additional, Aoyagi, Yasuko, additional, Matsudera, Shotaro, additional, Ohno, Kazuchika, additional, Ariizumi, Yosuke, additional, Michi, Yasuyuki, additional, Tomioka, Hirofumi, additional, Shimamoto, Hiroaki, additional, Yoshimura, Ryoichi, additional, Asakage, Takahiro, additional, Harada, Hiroyuki, additional, Miyake, Satoshi, additional, Miura, Masahiko, additional, and Ikeda, Sadakatsu, additional

Published
2021
Full Text
View/download PDF

37. 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

39. Homeobox transcription factor engrailed homeobox 1 is a possible diagnostic marker for adenoid cystic carcinoma and polymorphous adenocarcinoma

Author

Baba, Shunichi, primary, Akashi, Takumi, additional, Kayamori, Kou, additional, Ohuchi, Tomoyuki, additional, Ogawa, Ikuko, additional, Kubota, Nobuhisa, additional, Nakano, Keisuke, additional, Nagatsuka, Hitoshi, additional, Hasegawa, Hiromasa, additional, Matsuzaka, Kenichi, additional, Tomii, Shohei, additional, Uchida, Keisuke, additional, Katsuta, Noriko, additional, Sekiya, Takahiro, additional, Ando, Noboru, additional, Miura, Keiko, additional, Ishibashi, Hironori, additional, Ariizumi, Yousuke, additional, Asakage, Takahiro, additional, Michi, Yasuyuki, additional, Harada, Hiroyuki, additional, Sakamoto, Kei, additional, Eishi, Yoshinobu, additional, Okubo, Kenichi, additional, and Ikeda, Tohru, additional

Published
2020
Full Text
View/download PDF

49. Homeobox transcription factor engrailed homeobox 1 is a possible diagnostic marker for adenoid cystic carcinoma and polymorphous adenocarcinoma.

Author

Baba, Shunichi, Akashi, Takumi, Kayamori, Kou, Ohuchi, Tomoyuki, Ogawa, Ikuko, Kubota, Nobuhisa, Nakano, Keisuke, Nagatsuka, Hitoshi, Hasegawa, Hiromasa, Matsuzaka, Kenichi, Tomii, Shohei, Uchida, Keisuke, Katsuta, Noriko, Sekiya, Takahiro, Ando, Noboru, Miura, Keiko, Ishibashi, Hironori, Ariizumi, Yousuke, Asakage, Takahiro, and Michi, Yasuyuki

Subjects
ADENOID cystic carcinoma, TRANSCRIPTION factors, SALIVARY glands, ADENOCARCINOMA, TUMORS
Abstract

Diagnostic utility of a homeobox transcription factor, engrailed homeobox 1 (En1) in the histopathology of salivary gland neoplasms was studied. The expression of En1 was immunohistochemically examined in 51 cases of adenoid cystic carcinoma (AdCC) and 143 cases of other salivary gland neoplasms. In all 51 AdCCs, En1 was expressed in 30–100% of tumor cells. In eight of nine polymorphous adenocarcinomas (PACs), En1 was expressed in 40–100% of tumor cells. Less than 5% of tumor cells expressed En1 in three of 12 epithelial–myoepithelial carcinomas, one of 17 basal cell adenomas (BCAs), and one of 34 pleomorphic adenomas (PAs). Among 55 other carcinoma cases, 1–30% of tumor cells expressed En1 in three salivary duct carcinomas (SDCs) ex PA. None of the myoepitheliomas and Warthin tumors expressed En1. When the cut‐off value of the percentage of En1‐expressing cells was set to 25%, all 51 AdCCs, eight of nine PACs and one SDC ex PA were En1‐positive and the others were En1‐negative. En1 is expressed consistently in AdCCs, frequently in PACs, but rarely in other salivary gland neoplasms. En1 is a possible diagnostic marker for AdCC and PAC in the histopathology of salivary gland neoplasms. [ABSTRACT FROM AUTHOR]

Published
2021
Full Text
View/download PDF

50. Primordial odontogenic tumor occurred in the maxilla with unique calcifications and its crucial points for differential diagnosis.

Author

Kayamori, Kou, Tsuchiya, Maiko, Michi, Yasuyuki, Kuribayashi, Ami, Mikami, Toshinari, Sakamoto, Kei, Yoda, Tetsuya, and Ikeda, Tohru

Subjects
ODONTOGENIC tumors, DIFFERENTIAL diagnosis, EXTRACELLULAR matrix proteins, CALCIFICATION, MAXILLA, CONNECTIVE tissues, AMELOBLASTS
Abstract

Primordial odontogenic tumor (POT) is a newly classified, mixed epithelial and mesenchymal odontogenic tumor, with only 17 reported cases to date. Herein, we report a case of POT that occurred in the right maxilla of a 10‐year‐old boy and reveal unique features in comparison with those previously reported. Radiologically, the lesion presented as a well‐defined, unilocular radiolucency with notable radiopaque foci on the periphery. Microscopically, the tumor was mainly composed of dental papilla‐like myxoid fibrous connective tissue, largely surrounded by non‐keratinized squamous epithelium with numerous calcified particles, and partly enclosed by inner enamel epithelium‐like columnar cells and enamel organ‐like structures accompanied with cuboidal and/or stellate reticulum‐like cells. Immunohistochemically, the epithelium tested positive for cytokeratin 14 and 19. Moreover, amelogenin and ameloblastin, matrix proteins relating to enamel formation, were positive in the covering epithelium. The tumor was enucleated as a whole, and no recurrence was recorded thereafter. Although the presence of numerous calcified particles was unique, we diagnosed this lesion as POT based on the above‐described features. Furthermore, we emphasize the importance of the differential diagnosis of POT and other odontogenic tumors that resemble corresponding tooth germ components. [ABSTRACT FROM AUTHOR]

Published
2021
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results