
No new safety signals were observed with the daratumumab regimen after an additional 3 years of follow-up in the phase 3 PERSEUS study.
A 27-year-old man is found to have an anterior mediastinal mass. A biopsy of the mass is performed. What is your diagnosis?
A 27-year-old man is found to have an anterior mediastinal mass. A biopsy of the mass is performed, and the histology image is shown below.
What is your diagnosis?






![“[W]e should strive to increase the [number] of patients…who enjoy long-term disease-free survival and possibly cure,” said Meletios Dimopoulos, MD.](https://cdn.sanity.io/images/0vv8moc6/cancernetwork/c7abebf9344f9b1be9aee80d9879d139c1655bcc-1200x1197.jpg?w=350&fit=crop&auto=format)