An unusual case of proximal humeral simple bone cyst in an adult from secondary cystic change. - Rosario, Mamer S.; Norio Yamamoto; Katsuhiro Hayashi; Akihiko Takeuchi; Hiroaki Kimura; Shinji Miwa; Takashi Higuchi; Hiroyuki Inatani; Kensaku Abe; Yuta Taniguchi; Hisaki Aiba; Hiroyuki Tsuchiya (World Journal of Surgical Oncology, 2017)