Pathological Characteristics of Benign Tumors or Tumor-like Lesions of the Esophagus Tomio Arai 1 , Naoko Inoshita 1 , Keisuke Nonaka 1 , Mototsune Kakizaki 1 , Shoichiro Takakuma 1 , Akiko Komatsu 1 , Miho Matsukawa 2 , Satoko Uegaki 3 , Nobuo Kanazawa 4 , Kojiro Kuroiwa 4 , Junko Aida 5 , Toshiyuki Ishiwata 5 , Kaiyo Takubo 5 , Fukuo Kondo 6 , Satoshi Baba 7 , Akira Komiyama 8 1Departments of Pathology, Tokyo Metropolitan Geriatric Hospital, Tokyo 2Department of Endoscopy, Tokyo Metropolitan Geriatric Hospital, Tokyo 3Department of Gastroenterology, Tokyo Metropolitan Geriatric Hospital, Tokyo 4Department of Surgery, Tokyo Metropolitan Geriatric Hospital, Tokyo 5Research Team for Geriatric Pathology, Tokyo Metropolitan Institute of Gerontology, Tokyo 6Department of Pathology, Teikyo University Hospital, Tokyo 7Department of Pathology, Hamamatsu University Hospital, Hamamatsu, Japan 8Department of Diagnostic Pathology, Fujinomiya City General Hospital, Fujinomiya, Japan Keyword: 平滑筋腫 , 神経鞘腫 , 顆粒細胞腫 , pyogenic granuloma , giant fibrovascular polyp pp.237-246
Published Date 2020/3/25
DOI https://doi.org/10.11477/mf.1403201962
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 We present the clinicopathological features of benign esophageal tumors and tumor-like lesions and explain their characteristics by reviewing the literature. When these lesions are found clinically, due to a feeling of swallowing or difficulty in swallowing, it is crucial to differentiate benign lesions from malignant tumors.In contrast, there are also asymptomatic diseases, such as papillomas, that are incidentally found by endoscopy and do not require active treatment. Macroscopically, esophageal lesions are classified into three groups:submucosal tumors, lesions protruding into the lumen, and lesions present in the esophageal wall. Knowledge of the clinicopathological characteristics of each lesion could aid in differential diagnosis. Furthermore, some of these lesions are associated with malignant tumors or hereditary diseases ; hence, attention should be paid not only to the diagnosis of benign lesions but also to their relationship with other diseases.

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