PIK3CA mutation detection by circulating tumor cell sequencing guides the effective PI3K inhibitor treatment of a patient with hormone receptor-positive breast cancer transformed into triple-negative breast cancer: A case report.

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Title: PIK3CA mutation detection by circulating tumor cell sequencing guides the effective PI3K inhibitor treatment of a patient with hormone receptor-positive breast cancer transformed into triple-negative breast cancer: A case report.
Authors: Zhang J; Department of Breast Surgery, Xuzhou Hospital Affiliated to Jiangsu University (Xuzhou Cancer Hospital), Xuzhou, Jiangsu, People's Republic of China., Pei J; Department of Breast Surgery, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, People's Republic of China., Hao G; Department of Breast Surgery, Xuzhou Hospital Affiliated to Jiangsu University (Xuzhou Cancer Hospital), Xuzhou, Jiangsu, People's Republic of China., Meng Y; Department of Breast Surgery, Xuzhou Hospital Affiliated to Jiangsu University (Xuzhou Cancer Hospital), Xuzhou, Jiangsu, People's Republic of China., Li F; Department of Breast Surgery, Xuzhou Hospital Affiliated to Jiangsu University (Xuzhou Cancer Hospital), Xuzhou, Jiangsu, People's Republic of China., Xu H; Nanjing RontiMed Laboratory Co., Ltd, Nanjing, Jiangsu, People's Republic of China., Liu H; The Second Department of Breast Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin, China.
Source: Medicine [Medicine (Baltimore)] 2026 May 15; Vol. 105 (20), pp. e48622.
Publication Type: Journal Article; Case Reports
Journal Info: Publisher: Lippincott Williams & Wilkins Country of Publication: United States NLM ID: 2985248R Publication Model: Print Cited Medium: Internet ISSN: 1536-5964 (Electronic) Linking ISSN: 00257974 NLM ISO Abbreviation: Medicine (Baltimore) Subsets: MEDLINE
Database: MEDLINE Ultimate
Description
ISSN:1536-5964
DOI:10.1097/MD.0000000000048622