A chronic expanding hematoma (CEH), a type of lesion that gradually develops after trauma or surgery, can appear in many locations, though occurrence in the head and neck region is uncommon. Here, we report the first known case of a CEH arising in the oral floor, which developed in a 16-year-old woman who exhibited a slowly expanding mass over a period of 2 months after dental treatment. (C) 2013 Asian AOMS, ASOMP, JSOP, JSOMS, JSOM, and JAMI. Published by Elsevier Ltd. All rights reserved.(star)
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Jichi Med Univ, Saitama Med Ctr, Dept Gen Thorac Surg, Shimotsuke, Tochigi 3290498, JapanJichi Med Univ, Saitama Med Ctr, Dept Gen Thorac Surg, Shimotsuke, Tochigi 3290498, Japan
Nakano, Tomoyuki
Endo, Shunsuke
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Jichi Med Univ, Saitama Med Ctr, Dept Gen Thorac Surg, Shimotsuke, Tochigi 3290498, JapanJichi Med Univ, Saitama Med Ctr, Dept Gen Thorac Surg, Shimotsuke, Tochigi 3290498, Japan
Endo, Shunsuke
Nokubi, Mitsuhiro
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Jichi Med Univ, Saitama Med Ctr, Dept Gen Thorac Surg, Shimotsuke, Tochigi 3290498, JapanJichi Med Univ, Saitama Med Ctr, Dept Gen Thorac Surg, Shimotsuke, Tochigi 3290498, Japan
Nokubi, Mitsuhiro
Tsubochi, Hiroyoshi
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Jichi Med Univ, Saitama Med Ctr, Dept Gen Thorac Surg, Shimotsuke, Tochigi 3290498, JapanJichi Med Univ, Saitama Med Ctr, Dept Gen Thorac Surg, Shimotsuke, Tochigi 3290498, Japan