title: Two Cases of Diagnosis and Removal of Endobronchial Hamartoma by Cryotherapy via Flexible Bronchoscopy.
abstract: Although endobronchial hamartoma is a rare benign tumor, most patients with endobronchial hamartoma have respiratory symptoms such as obstructive pneumonia, hemoptysis, cough, or dyspnea due to bronchial obstruction. It can cause irreversible post-obstructive pulmonary destruction, thus early diagnosis and treatment is very important. Recently, there have been cases of neodymium-doped yttrium aluminum garnet (Nd:YAG) laser and electrocautery procedures for bronchoscopic treatment of malignant or benign central airway obstruction with comparable therapeutic efficacy and few complications. Bronchoscopic cryotherapy is a newly developed technique for management of central airway obstruction. Moreover, it provides diagnostic methods with improving diagnostic yield and safety. We report two cases of endobronchial hamartoma, each diagnosed and definitively treated with bronchoscopic techniques. Endobronchial biopsy and removal was successfully performed by cryotherapy via flexible bronchoscopy without notable complications. Follow-up bronchoscopic examinations excluded residual or recurrent disease.
authors.affiliation: Division of Respiratory and Critical Care Medicine, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea.
authors.forename: Jae Kyeom
authors.initials: JK
authors.lastname: Sim
authors.affiliation: Division of Respiratory and Critical Care Medicine, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea.
authors.forename: Jong Hyun
authors.initials: JH
authors.lastname: Choi
authors.affiliation: Division of Respiratory and Critical Care Medicine, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea.
authors.forename: Jee Youn
authors.initials: JY
authors.lastname: Oh
authors.affiliation: Division of Respiratory and Critical Care Medicine, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea.
authors.forename: Jae Young
authors.initials: JY
authors.lastname: Cho
authors.affiliation: Division of Respiratory and Critical Care Medicine, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea.
authors.forename: Eul Sun
authors.initials: ES
authors.lastname: Moon
authors.affiliation: Division of Respiratory and Critical Care Medicine, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea.
authors.forename: Hye Sook
authors.initials: HS
authors.lastname: Min
authors.affiliation: Division of Respiratory and Critical Care Medicine, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea.
authors.forename: Byung Hyun
authors.initials: BH
authors.lastname: Lee
authors.affiliation: Division of Respiratory and Critical Care Medicine, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea.
authors.forename: Min Seon
authors.initials: MS
authors.lastname: Park
authors.affiliation: Division of Respiratory and Critical Care Medicine, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea.
authors.forename: Gyu Young
authors.initials: GY
authors.lastname: Hur
authors.affiliation: Division of Respiratory and Critical Care Medicine, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea.
authors.forename: Sung Yong
authors.initials: SY
authors.lastname: Lee
authors.affiliation: Division of Respiratory and Critical Care Medicine, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea.
authors.forename: Jae Jeong
authors.initials: JJ
authors.lastname: Shim
authors.affiliation: Division of Respiratory and Critical Care Medicine, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea.
authors.forename: Kyung Ho
authors.initials: KH
authors.lastname: Kang
authors.affiliation: Division of Respiratory and Critical Care Medicine, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea.
authors.forename: Kyung Hoon
authors.initials: KH
authors.lastname: Min
keywords: Bronchial Neoplasms; Bronchoscopy; Cryotherapy; Hamartoma
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