A case of intrathoracic desmoid tumor with pulmonary Mycobacterium abscessus disease

by Takuma Katano, Eri Hagiwara, Hiromasa Arai, Midori Sato, Takafumi Yamaya, Michihiko Tajiri, Takashi Ogura
Published 2020-01-01

Alveolar soft-part sarcoma of the mediastinum: A case report

by Yohei Kameda, Teppei Nishii, Masahiro Tsuboi, Hiromasa Arai, Kenji Inui, Takeshi Kaneko, Noriko Kimura, Mitsuhide Naruse, Munetaka Masuda
Published 2017-02-01

Well-Differentiated Extraskeletal Osteosarcoma Arising from the Retroperitoneum That Recurred as Anaplastic Spindle Cell Sarcoma

by Hiromasa Arai, Yasushi Rino, Teppei Nishii, Norio Yukawa, Nobuyuki Wada, Hisashi Oshiro, Tsuyoshi Ishida, Noboru Nakaigawa, Munetaka Masuda
Published 2010-01-01

A Histopathological Feature of EGFR-Mutated Lung Adenocarcinomas with Highly Malignant Potential - An Implication of Micropapillary Element.

by Mai Matsumura, Koji Okudela, Yoko Kojima, Shigeaki Umeda, Yoko Tateishi, Akimasa Sekine, Hiromasa Arai, Tetsukan Woo, Michihiko Tajiri, Kenichi Ohashi
Published 2016-01-01

Specific expression of MUC21 in micropapillary elements of lung adenocarcinomas - Implications for the progression of EGFR-mutated lung adenocarcinomas.

by Mai Matsumura, Koji Okudela, Yu Nakashima, Hideaki Mitsui, Kaori Denda-Nagai, Takehisa Suzuki, Hiromasa Arai, Shigeaki Umeda, Yoko Tateishi, Chihiro Koike, Toshiaki Kataoka, Tatsuro Irimura, Kenichi Ohashi
Published 2019-01-01

Anterior Mediastinal Amyloidosis Mimics Thymic Carcinoma

by Satoshi Ikeda, MD, PhD, Hiromasa Arai, MD, PhD, Akimasa Sekine, MD, PhD, Koji Okudela, MD, PhD, Tae Iwasawa, MD, PhD, Takashi Ogura, MD
Published 2020-09-01