Tae In Yoon, Joon Jeong, Seokwon Lee, Jai Min Ryu, Young Joo Lee, Jee Yeon Lee, Ki-Tae Hwang, Hakyoung Kim, Seonok Kim, Sae Byul Lee, Beom Seok Ko, Jong Won Lee, Byung Ho Son, Otto Metzger, Hee Jeong Kim
IMPORTANCE: The disparate prognostic implications between invasive ductal carcinoma (IDC) and invasive lobular carcinoma (ILC) have been demonstrated. However, information on premenopausal patients remains insufficient. OBJECTIVE: To examine long-term survival outcomes of ILC and IDC in premenopausal patients using national databases. DESIGN, SETTING, AND PARTICIPANTS: This cohort study used the Surveillance, Epidemiology, and End Results (SEER), Korean Breast Cancer Registry (KBCR), and Asan Medical Center Research (AMCR) databases to identify premenopausal patients with stage I to III ILC or IDC between January 1, 1990, and December 31, 2015...
November 1, 2023: JAMA Network Open