Delayed‐onset heparin‐induced thrombocytopenia complicated with saddle embolus

Delayed‐onset heparin‐induced thrombocytopenia is a rare complication of heparin in which thrombocytopenia and thrombosis occur several days after heparin cessation. We describe a 47‐year‐old female patient with a history of melanoma and multiple surgeries presented to the emergency department with acute dyspnea and chest pain on the eighth day after discharge. Delayed‐onset heparin‐induced thrombocytopenia should be considered whenever a patient presents with thrombosis with a history of hospitalization even after several days. A history of probable heparin exposure should be searched more precisely.