Ha, E., Suzuki, Y., Sarkaria, I.S. et al. Outcome Analysis of Cytoreductive Surgery and Hyperthermic Intrathoracic Chemoperfusion (HITHOC) for Pseudomyxoma Peritonei with Pleural Metastasis. Ann Surg Oncol 33, 3084–3090 (2026). https://doi.org/10.1245/s10434-025-18880-8 What is this study about? This study looked at a rare but challenging situation: when a condition called pseudomyxoma peritonei (PMP)—a cancer that usually starts in the abdomen—spreads to the chest (pleura).