Male metaplastic breast cancer with poor prognosis:A case report  

作　　者：Hyun Yul Kim Seungju Lee Dong-il Kim Chang Shin Jung Jee Yeon Kim Kyung Jin Nam Ki Seok Choo Youn Joo Jung 

机构地区：[1]Department of Surgery,Pusan National University Yangsan Hospital,Pusan National University School of Medicine,Gyeongnam 50612,South Korea [2]Department of Pathology,Pusan National University Yangsan Hospital,Pusan National University School of Medicine,Gyeongnam 50612,South Korea [3]Department of Radiology,Pusan National University Yangsan Hospital,Pusan National University School of Medicine,Gyeongnam 50612,South Korea

出　　处：《World Journal of Clinical Cases》2022年第15期4964-4970,共7页世界临床病例杂志

基　　金：Supported by the 2020 research grant from Pusan National University Yangsan Hospital,No.2020-193.

摘　　要：BACKGROUND Metaplastic breast cancer(MBC)is a rare subtype of breast cancer.They constitute less than 1%of breast cancer cases and are much rarer in males.There are few reports of MBC because of its rarity.MBC,an aggressive type of cancer,is refractory to common treatment modalities of breast cancer and has a poor prognosis.CASE SUMMARY We report a case of MBC in a 78-year-old man.He visited our clinic with a palpable mass on the left breast with no masses in the axillary areas.He had previously undergone robot-assisted laparoscopic radical prostatectomy for prostate cancer,but there was no family history of malignancy.The breast mass was visible on ultrasonography,mammography,and magnetic resonance imaging,and chest computed tomography revealed a lung mass in the posterior basal segment of the right lower lobe.The patient was diagnosed with metaplastic carcinoma on core needle biopsy with lung metastasis.Total mastectomy with sentinel lymph node biopsy and video-assisted segmentectomy of the right lung was performed.However,multiple metastases appeared 3 mo after surgery in the brain,chest,and abdomen,and the patient died 5 mo after the initial diagnosis.CONCLUSION MBC is an aggressive and extremely rare breast cancer type.Further case reports are needed to determine the optimal treatment.

关 键 词：Breast neoplasm MALE Triple-negative breast cancer Metaplastic breast cancer Adjuvant treatment Case report 

分 类 号：R737.9[医药卫生—肿瘤]