
This cross-sectional study evaluated the genetic landscape of a cohort of patients with metastatic prostate cancer who were treated at a referral center in Mexico City, Mexico.

This cross-sectional study evaluated the genetic landscape of a cohort of patients with metastatic prostate cancer who were treated at a referral center in Mexico City, Mexico.

This clinical quandary details a Mexican man, aged 77 years, who presented to the oncology clinic with a sternal mass. Based on the results, the patient fulfilled the 2016 American College of Rheumatology/European League Against Rheumatism classification criteria for Sjögren syndrome, thus the diagnosis triggered by immune checkpoint inhibitors was definitively established.