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Intraparotid metastasis from lung adenocarcinoma diagnosed by FNAC —Report of a rare case
Author(s) -
Stephen Norton,
Raman Arthy,
Kumari Sinku,
Dineshbabu Sekar,
Gochhait Debasis,
Siddaraju Neelaiah
Publication year - 2020
Publication title -
diagnostic cytopathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.417
H-Index - 65
eISSN - 1097-0339
pISSN - 8755-1039
DOI - 10.1002/dc.24428
Subject(s) - medicine , parotid gland , lung , metastasis , adenocarcinoma , pathology , prostate , immunohistochemistry , adenocarcinoma of the lung , head and neck , radiology , surgery , cancer
Metastasis to the parotid gland accounts for 10%‐16% of parotid malignancies. Head and neck malignancies constitute the major bulk of metastatic lesions to the parotid. The other common primaries include the breast, kidney, lung, and prostate. Metastasis from the lung to the parotid is a relatively rare occurrence whose exact percentage is not known. Though intralymphatic spread into the parotid is known, intraparenchymal spread through hematogenous route is rare. The presence of intraparenchymal spread of lung Adenocarcinoma to the contralateral parotid diagnosed on fine needle aspiration (FNA) makes it a case worth reporting, highlighting the utility of cell block preparation and immunohistochemistry for a precise and early diagnosis.