TY - CHAP M1 - Book, Section TI - Complex Regional Pain Syndrome (Reflex Sympathetic Dystrophy) & Posttraumatic Neuralgia A1 - Oaklander, Anne Louise A2 - Stone, John H. Y1 - 2021 N1 - T2 - Current Diagnosis & Treatment: Rheumatology, 4e AB - ESSENTIALS OF DIAGNOSISConsider posttraumatic neuralgia (PTN) when an injury causes unexpectedly severe or prolonged distal pain.Injuries that appear minor, eg, phlebotomy, sometimes injure nerves disproportionately.Symptoms can be mild and transient, moderate, or severe and prolonged. Children almost always recover.The complex regional pain syndrome (CRPS) diagnosis requires additional symptoms: eg, asymmetric edema, alterations of cutaneous blood flow or sweating patterns, or movement difficulties.Full CRPS develops only in the limbs.Rare cases that are prolonged, bilateral, or not associated with trauma may be related to internal structural causes, underlying systemic inflammation, immune dysregulation, or to small-fiber polyneuropathy. These cases require additional diagnostic approaches and often have specific treatments. SN - PB - McGraw Hill CY - New York, NY Y2 - 2024/04/19 UR - accessmedicine.mhmedical.com/content.aspx?aid=1180195817 ER -