&NA;Operative morbidity, including osteomyelitis and meningeal and cerebral sepsis, remains high among patients undergoing the composite (bony and overlying soft tissue) resection of malignant skull base tumors. This is in part because of the poor wound healing afforded by free skin grafts and the poorly vascularized pericranial flaps routinely used to resurface the operative defect. In an effort to reduce the operative morbidity, single stage resection and reconstruction with distant vascularized flap tissue was performed in five consecutive patients who presented with malignant skull base tumors. We think that immediate flap reconstruction will allow skull base lesions previously considered unresectable or associated with a prohibitive complication rate to be safely resected. Case presentations illustrate operative techniques. The potential disadvantage of masking a tumor recurrence with immediate flap coverage is discussed. (Neurosurgery18:7‐11, 1986)