Illustrative CasesLuc's Abscess and Temporomandibular Joint Septic Arthritis Two Rare Sequelae of Acute Otitis MediaTsai, Carmelle MD*; Deramo, Jennifer MD†; Shen, Xiaofan MD‡; Vandiver, Kathleen MD†; Mittal, Vineeta MD, MBA†Author Information From the *Division of Emergency Medicine, Department of Pediatrics, The Children's Hospital of Philadelphia and The University of Pennsylvania, Philadelphia, PA †Department of Pediatrics, University of Texas Southwestern Medical Center and Children's Health System Dallas, TX ‡Division of Hematology and Oncology, Department of Pediatrics, Children's Hospital of Los Angeles and University of Southern California, Los Angeles, CA. Disclosure: The authors declare no conflict of interest. This case was seen while Carmelle Tsai, Jennifer Deramo, and Xiaofan Shen were resident physicians at Children's Health Children's Medical Center of Dallas and University of Texas Southwestern Medical Center. Reprints: Carmelle Tsai, MD, Division of Emergency Medicine, Department of Pediatrics, The Children's Hospital of Philadelphia and The University of Pennsylvania, 3501 Civic Center Boulevard, CTRB 9th Floor, Philadelphia, PA 19104 (e-mail: email@example.com). Online date: November 21, 2017 Pediatric Emergency Care: May 2020 - Volume 36 - Issue 5 - p e285-e287 doi: 10.1097/PEC.0000000000001348 Buy Metrics Abstract A 5-year-old previously healthy child presented with right-sided otalgia, right facial and temporal swelling, and right jaw pain in the setting of 6 days of low-grade fever. The child had no trauma, vomiting, or prior dental treatments. On physical examination, the patient had facial swelling, erythema, and tenderness over the right temporal region along with trismus, as well as pain on palpation of the right temporomandibular joint (TMJ). A computed tomography scan revealed otitis media, Luc's abscess, and TMJ septic arthritis requiring surgical drainage and intravenous antibiotics. The patient responded well to treatment and recovered without sequelae. Dr. Cardwell Luc first described Luc's abscess in 1913 as a rare complication of middle ear infection leading to an abscess in the infratemporal space. To our knowledge, our case is the first documented case of concurrent Luc's abscess and TMJ septic arthritis in a previously healthy child as complications of acute otitis media. This case highlights 2 rare complications of a common medical condition that pediatric emergency care providers should recognize due to the need for surgical intervention, without which there may be longstanding sequelae. Copyright © 2020 Wolters Kluwer Health, Inc. All rights reserved.