%0 Case Reports %T High-Grade Osteosarcoma of the Maxillary Sinus. %A Linxweiler M %A Wagner M %J Dtsch Arztebl Int %V 121 %N 6 %D 2024 Mar 22 %M 38666680 %F 8.251 %R 10.3238/arztebl.m2023.0088