WordNet

not dangerous to health; not recurrent or progressive (especially of a tumor)
pleasant and beneficial in nature or influence; "a benign smile"; "the benign sky"; "the benign influence of pure air" (同)benignant
kindness of disposition or manner; "the benign ruler of millions"; "benign intentions"

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1. 小児および思春期における良性骨腫瘍：概要 benign bone tumors in children and adolescents an overview
2. 成人における膝関節腫瘍のX線評価 radiologic evaluation of knee tumors in adults
3. 骨肉腫：疫学、病因、臨床症状、診断、および組織学的検査 osteosarcoma epidemiology pathogenesis clinical presentation diagnosis and histology
4. 骨の巨大細胞腫瘍 giant cell tumor of bone
5. 脊髄腫瘍 spinal cord tumors

Wu CT, Chen AC, Wang CJ, Wang CW, Fu CJ, Wong YC.SourceDepartment of Medical Imaging and Intervention, Chang Gung Memorial Hospital, Taoyuan, Taiwan, ROC.
Pediatrics and neonatology.Pediatr Neonatol.2013 Aug;54(4):278-80. doi: 10.1016/j.pedneo.2012.11.017. Epub 2013 Jan 16.
Chondroblastoma is a relatively uncommon but benign bone tumor that is typically found in a long-bone epiphysis. Reports of this type of tumor in the carpals have been rare, and even fewer cases of such tumors in the triquetrum have been reported. Here, we present classical findings of a chondroblas
PMID 23597548

Hayashi K, Tsuchiya H, Yamamoto N, Shirai T, Nishida H, Takeuchi A, Kimura H, Miwa S, Inatani H, Okamoto H, Yamada S, Ikeda H, Sawada-Kitamura S, Nojima T, Ooi A, Otsuka T.SourceDepartment of Orthopaedic Surgery, Graduate School of Medical Sciences, Nagoya City University, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, 467-8601, Japan, hayashikatsu830@aol.com.
International journal of clinical oncology.Int J Clin Oncol.2013 Jul 24. [Epub ahead of print]
BACKGROUND: Low-grade osteosarcoma, including low-grade central osteosarcoma and parosteal osteosarcoma, is an extremely rare variant, and the diagnosis is occasionally difficult. In this article we present cases of low-grade osteosarcomas that should be reviewed by a clinical oncologist.PATIENTS AN
PMID 23881556

木原淳,荒井政和,牛島友則,郡司真理子,村田建一郎,福島純一,堀内啓
日本臨床細胞学会雑誌 52(3), 259-264, 2013
背景 : 軟骨芽細胞腫は若年者の長管骨骨端部に好発する良性骨腫瘍である. 側頭骨発生の軟骨芽細胞腫はまれで, 細胞像の報告例は限られている.症例 : 症例 1 は 50 歳男性. 1.5 cm 大の左側頭骨腫瘤に対して穿刺吸引細胞診および生検術が行われるも診断にいたらなかった. 部分切除術が行われ病理学的に軟骨芽細胞腫と診断された. 残存腫瘍の増大に対し再摘出術が行われ捺印細胞診を施行した. 穿刺 …
NAID 130004513182

坂本洋右,皆川康之,神津由直,笠松厚志,鵜澤一弘,丹沢秀樹
日本口腔外科学会雑誌 58(4), 242-246, 2012
… Chondroblastoma is a rare benign tumor of the head and neck. … We report a case of chondroblastoma of the mandibular condyle. … The biopsy diagnosis was a chondroblastoma. …
NAID 130004707896