Subsegmental pulmonary embolism (SSPE) is a controversial entity as they have uncertain clinical significance. As a result, the Chest Guidelines  and ACEP guidelines state that a very select group of patients with isolated SSPE and no deep vein thrombosis may be managed with surveillance rather than anticoagulation. In this podcast we review SSPE and a new prospective study by Le Gal and colleagues. Show notes and references: FOAMcast.org Thanks for listening! Lauren Westafer