pertinent features of this bleeding complication include : high prevalence involving the pediatric population , presentation with non-specific symptoms ( e.g. , sore throat , dysphagia ) early in the course of the bleeding episode , progression to complete upper respiratory obstruction if not recognized and treated , and the need for relatively high levels of the deficient coagulation factor for a period of at least 7 days to ensure resolution of the hematoma .
C0019080
bleeding
C0018944
hematoma