title: Unusual Granular Cell Tumor of the Trachea Coexisting With Papillary Thyroid Carcinoma and Masquerading as Tracheal Invasion of Recurred Thyroid Carcinoma: A Case Report.
abstract: This was an extremely rare case of unusual granular cell tumor of the trachea coexisting with recurrent papillary thyroid carcinoma. We initially misdiagnosed this patient as having tracheal invasion from recurrent thyroid carcinoma even after a computed tomography scan and fine-needle aspiration cytology.Clinicians should be aware of the possibility of granular cell tumor of the trachea occurring simultaneously with papillary thyroid carcinoma.
authors.affiliation: From the Department of Otolaryngology-Head and Neck Surgery, Chonnam National University Medical School & Chonnam National University Hwasun Hospital, Hwasun, Korea.
authors.forename: Dong Hoon
authors.initials: DH
authors.lastname: Lee
authors.forename: Tae Mi
authors.initials: TM
authors.lastname: Yoon
authors.forename: Joon Kyoo
authors.initials: JK
authors.lastname: Lee
authors.forename: Sang Chul
authors.initials: SC
authors.lastname: Lim
mesh_terms: D002277:Carcinoma / Q000473:pathology*; D002291:Carcinoma, Papillary; D005260:Female; D006801:Humans; D008875:Middle Aged; D009378:Neoplasms, Multiple Primary / Q000175:diagnosis / Q000473:pathology*; D000077273:Thyroid Cancer, Papillary; D013961:Thyroid Gland / Q000473:pathology; D013964:Thyroid Neoplasms / Q000473:pathology*; D014132:Trachea / Q000473:pathology; D014134:Tracheal Neoplasms / Q000175:diagnosis / Q000473:pathology* / Q000556:secondary