title: Collision metastasis of breast and thyroid carcinoma to a single cervical lymph node: report of a case.
abstract: We herein report a rare case of collision lymph node metastases of breast and thyroid carcinomas. A 49-year-old female had undergone an extensively radical mastectomy of the right breast for inflammatory breast cancer at our hospital. Eleven months later, she presented with enlarged lymph nodes in her right lateral neck and multiple nodules in bilateral thyroid lobes. The patient underwent total thyroidectomy and radical dissection of the bilateral cervical lymph nodes. A histological examination showed multiple foci of papillary thyroid carcinoma (PTC) in the bilateral lobes. Surprisingly, concurrent metastases of breast carcinoma and PTC were shown in one of the lymph nodes from the right jugular region. This rare case of collision metastasis and the related literature are discussed.
authors.affiliation: Department of Pathology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China. zenghong9905@yahoo.com.cn
authors.forename: Hong
authors.initials: H
authors.lastname: Zeng
authors.forename: Chao
authors.initials: C
authors.lastname: Liu
authors.forename: Yun-jie
authors.initials: YJ
authors.lastname: Zeng
authors.forename: Lin
authors.initials: L
authors.lastname: Wang
authors.forename: Geng-biao
authors.initials: GB
authors.lastname: Chen
authors.forename: Xi-ming
authors.initials: XM
authors.lastname: Shen
mesh_terms: D000231:Adenocarcinoma, Papillary / Q000556:secondary* / Q000601:surgery; D018270:Carcinoma, Ductal, Breast / Q000556:secondary* / Q000628:therapy; D005260:Female; D006801:Humans; D058922:Inflammatory Breast Neoplasms / Q000556:secondary* / Q000628:therapy; D008198:Lymph Nodes / Q000473:pathology*; D008207:Lymphatic Metastasis; D015409:Mastectomy, Radical; D008875:Middle Aged; D009333:Neck; D009378:Neoplasms, Multiple Primary / Q000473:pathology*; D013964:Thyroid Neoplasms / Q000473:pathology* / Q000601:surgery; D013965:Thyroidectomy