title: True thymic hyperplasia in an infant.
abstract: True thymic hyperplasia is a very rare entity. We present an instance of idiopathic true massive thymic hyperplasia in a 9-month-old girl with a very large left-sided mediastinal mass noted on diagnostic imaging. Percutaneous biopsy revealed normal thymic tissue. Steroids were administered with no response. Surgery may be required in patients with respiratory distress unresponsive to steroids.
authors: Department of Cardiac and Thoracic surgery, The Affiliated Children's Hospital of Zhejiang University, Hangzhou, Zhejiang 310003, China.
authors: Zheng
authors: Z
authors: Tan
authors: Li-Yang
authors: LY
authors: Ying
authors: Ze-Wei
authors: ZW
authors: Zhang
authors: Jian-Hua
authors: JH
authors: Li
authors: Zhan
authors: Z
authors: Gao
authors: Jian-Chuan
authors: JC
authors: Qi
mesh_terms: D001706:Biopsy; D005260:Female; D006801:Humans; D007223:Infant; D008279:Magnetic Resonance Imaging; D013902:Radiography, Thoracic; D013950:Thymus Gland / Q000000981:diagnostic imaging / Q000473:pathology; D013952:Thymus Hyperplasia / Q000000981:diagnostic imaging / Q000473:pathology*; D014057:Tomography, X-Ray Computed