title: Benign clear cell tumor ("sugar tumor") of the trachea.
abstract: A benign clear cell tumor occurring in the trachea of a 48-year-old woman is described. This is the first such case to be reported with location outside of the lung parenchyma. Symptoms consisted of dyspnea on exertion, nonproductive cough, and finally fairly brisk hemoptysis. Histology and electron microscopy confirmed the diagnosis.
mesh_terms: D003594:Cytoplasmic Granules / Q000648:ultrastructure; D005260:Female; D006003:Glycogen; D006801:Humans; D008875:Middle Aged; D014134:Tracheal Neoplasms / Q000473:pathology* / Q000648:ultrastructure
chemical_list: D006003:Glycogen