title: Mucinous carcinoma (colloid carcinoma) of the lung diagnosed by fine needle aspiration cytology: a case report.
abstract: Mucinous carcinoma of the lung, also known as colloid carcinoma, is an uncommon tumour that is rarely encountered in fine needle aspiration (FNA) cytological practice. A 64-year-old Chinese male presenting with blood stained sputum and hoarseness of voice was discovered to have a 3 cm sized mass in the left lung. Neither bronchial washings nor transthoracic FNA yielded positive results at this stage. Six months later the patient returned to the hospital with a larger tumour and mediastinal lymphadenopathy. Transbronchial lymph node FNA, reported as negative for malignancy showed normal, hyperplastic and mildly atypical bronchial epithelial cells as well as a few single cells and extracellular mucin. Transthoracic FNA of the lung lesion performed under computed tomographic guidance showed characteristic cytological features of this tumour, establishing the diagnosis.
authors.affiliation: Department of Pathology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia.
authors.forename: Gita
authors.initials: G
authors.lastname: Jayaram
authors.forename: Roshidah
authors.initials: R
authors.lastname: Yaccob
authors.forename: Chong Kin
authors.initials: CK
authors.lastname: Liam
mesh_terms: D002288:Adenocarcinoma, Mucinous / Q000473:pathology* / Q000601:surgery; D044963:Biopsy, Fine-Needle; D006801:Humans; D008175:Lung Neoplasms / Q000473:pathology* / Q000601:surgery; D008297:Male; D008875:Middle Aged; D009077:Mucins / Q000378:metabolism
chemical_list: D009077:Mucins