RT Book, Section A1 Ritter, Kathryn A1 Fitch, Robert Warne A2 Knoop, Kevin J. A2 Stack, Lawrence B. A2 Storrow, Alan B. A2 Thurman, R. Jason SR Print(0) ID 1181043558 T1 Palmar Space Infection T2 The Atlas of Emergency Medicine, 5e YR 2021 FD 2021 PB McGraw-Hill PP New York, NY SN 9781260134940 LK accessmedicine.mhmedical.com/content.aspx?aid=1181043558 RD 2024/03/29 AB Palmar space infections occur within the deep fascial spaces, commonly from puncture wounds or hematogenous spread. The palm loses its concavity; tenderness, erythema, warmth, and fluctuance are evident. A thenar space infection is characterized by swelling over the thenar eminence and pain with thumb movement. With a midpalmar space infection, motion is limited and painful for the middle and ring fingers. Cellulitis, local traumatic injury, fractures, and soft-tissue mass are included in the differential.