title: Letter:Acute calf swelling.
mesh_terms: D001168:Arthritis / Q000150:complications; D003937:Diagnosis, Differential; D006406:Hematoma / Q000175:diagnosis*; D006801:Humans; D007866:Leg; D013583:Synovial Membrane / Q000293:injuries; D013924:Thrombophlebitis / Q000175:diagnosis