title: Metastatic carotid body paraganglioma of lungs and lymph nodes: Unsuspected diagnosis on EBUS-TBNA.
abstract: Paragangliomas are tumors that originate from the extra-adrenal chromaffin and nonchromaffin cells of neural crest origin. Lymph node metastases are common, while distant metastases to lung, liver, and bone are rare events and usually occur in the presence of a long standing clinically evident primary tumor. Primary diagnosis of paraganglioma at a metastatic site without a known primary is a diagnostic challenge. We report a case of an adult woman with incidentally detected metastasis to bilateral lungs from an occult carotid body paraganglioma, which presented a cytopathological diagnostic dilemma on EBUS-TBNA from paratracheal lymph nodes. Diagn. Cytopathol. 2017;45:327-332. © 2016 Wiley Periodicals, Inc.
authors.affiliation: Department of Pathology, All India Institute of Medical Sciences, New Delhi, India.
authors.forename: Kalpana
authors.initials: K
authors.lastname: Kumari
authors.affiliation: Department of Pathology, All India Institute of Medical Sciences, New Delhi, India.
authors.forename: Deepali
authors.initials: D
authors.lastname: Jain
authors.affiliation: Department of Pulmonary medicine and sleep disorders, All India Institute of Medical Sciences, New Delhi, India.
authors.forename: Rohit
authors.initials: R
authors.lastname: Kumar
authors.affiliation: Department of Pulmonary medicine and sleep disorders, All India Institute of Medical Sciences, New Delhi, India.
authors.forename: Anant
authors.initials: A
authors.lastname: Mohan
authors.affiliation: Department of Nuclear medicine, All India Institute of Medical Sciences, New Delhi, India.
authors.forename: Rakesh
authors.initials: R
authors.lastname: Kumar
mesh_terms: D001707:Biopsy, Needle; D002345:Carotid Body Tumor / Q000000981:diagnostic imaging* / Q000473:pathology; D005260:Female; D006801:Humans; D008168:Lung / Q000000981:diagnostic imaging / Q000473:pathology; D008175:Lung Neoplasms / Q000000981:diagnostic imaging* / Q000556:secondary; D008198:Lymph Nodes / Q000473:pathology; D008207:Lymphatic Metastasis; D008875:Middle Aged; D010235:Paraganglioma / Q000000981:diagnostic imaging* / Q000556:secondary
keywords: EBUS; cytology; metastasis; paraganglioma