title: Cytologic Diagnosis of "CASTLE" of thyroid gland: report of a case with histologic correlation.
abstract: We report on the cytologic and histologic features of a rare form of lymphoepithelioma-like carcinoma of the thyroid i.e., carcinoma showing thymus-like element (CASTLE). Sixteen cases of cervical lymph node aspirates with metastatic nasopharyngeal carcinoma are also reviewed. While it is important to recognize CASTLE of the thyroid because of its distinctly good prognosis, its cytologic features closely resemble those in metastatic nasopharyngeal carcinoma.
authors.affiliation: Department of Pathology, University of Hong Kong, Queen Mary Hospital, Hong Kong.
authors.forename: W K
authors.initials: WK
authors.lastname: Ng
authors.forename: R J
authors.initials: RJ
authors.lastname: Collins
authors.forename: W H
authors.initials: WH
authors.lastname: Shek
authors.forename: I O
authors.initials: IO
authors.lastname: Ng
mesh_terms: D000328:Adult; D001707:Biopsy, Needle; D002294:Carcinoma, Squamous Cell / Q000473:pathology*; D003581:Cytodiagnosis; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D009303:Nasopharyngeal Neoplasms / Q000473:pathology; D013945:Thymoma / Q000473:pathology*; D013953:Thymus Neoplasms / Q000473:pathology*; D013961:Thyroid Gland; D013964:Thyroid Neoplasms / Q000473:pathology*