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Soft Tissue Abscess
A. Carlson Merrow, Jr., MD, FAAP
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KEY FACTS

  • Terminology

    • Imaging

      • Top Differential Diagnoses

        • Pathology

          • Clinical Issues

            TERMINOLOGY

            • Synonyms

              • Pyomyositis, suppurative lymphadenitis
            • Definitions

              • Abscess: Walled-off liquefied collection of necrotic tissue, inflammatory cells, & bacteria
              • Phlegmon: Poorly defined focus of necrotic & inflammatory tissue ± components of liquefaction
              • Cellulitis: Poorly defined inflammatory changes of superficial soft tissue infections
              • Suppurative or purulent: Pus forming/containing

            IMAGING

            • General Features

              • Radiographic Findings

                • CT Findings

                  • Ultrasonographic Findings

                    • MR Findings

                      • Imaging Recommendations

                        DIFFERENTIAL DIAGNOSIS

                          PATHOLOGY

                          • General Features

                            CLINICAL ISSUES

                            • Presentation

                              • Demographics

                                • Treatment

                                  Selected References

                                  1. Song KS et al: Key role of magnetic resonance imaging in the diagnosis of infections around the hip and pelvic girdle mimicking septic arthritis of the hip in children. J Pediatr Orthop B. 25(3):234-40, 2016
                                  2. Verma S: Pyomyositis in children. Curr Infect Dis Rep. 18(4):12, 2016
                                  3. Penn EB Jr et al: Pediatric inflammatory adenopathy. Otolaryngol Clin North Am. 48(1):137-51, 2015
                                  4. Pattamapaspong N et al: Pitfalls in imaging of musculoskeletal infections. Semin Musculoskelet Radiol. 18(1):86-100, 2014
                                  5. Soldatos T et al: Magnetic resonance imaging of musculoskeletal infections: systematic diagnostic assessment and key points. Acad Radiol. 19(11):1434-43, 2012
                                  6. Ranson M: Imaging of pediatric musculoskeletal infection. Semin Musculoskelet Radiol. 13(3):277-99, 2009
                                  Related Anatomy
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                                  Related Differential Diagnoses
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                                  References
                                  Tables

                                  Tables

                                  KEY FACTS

                                  • Terminology

                                    • Imaging

                                      • Top Differential Diagnoses

                                        • Pathology

                                          • Clinical Issues

                                            TERMINOLOGY

                                            • Synonyms

                                              • Pyomyositis, suppurative lymphadenitis
                                            • Definitions

                                              • Abscess: Walled-off liquefied collection of necrotic tissue, inflammatory cells, & bacteria
                                              • Phlegmon: Poorly defined focus of necrotic & inflammatory tissue ± components of liquefaction
                                              • Cellulitis: Poorly defined inflammatory changes of superficial soft tissue infections
                                              • Suppurative or purulent: Pus forming/containing

                                            IMAGING

                                            • General Features

                                              • Radiographic Findings

                                                • CT Findings

                                                  • Ultrasonographic Findings

                                                    • MR Findings

                                                      • Imaging Recommendations

                                                        DIFFERENTIAL DIAGNOSIS

                                                          PATHOLOGY

                                                          • General Features

                                                            CLINICAL ISSUES

                                                            • Presentation

                                                              • Demographics

                                                                • Treatment

                                                                  Selected References

                                                                  1. Song KS et al: Key role of magnetic resonance imaging in the diagnosis of infections around the hip and pelvic girdle mimicking septic arthritis of the hip in children. J Pediatr Orthop B. 25(3):234-40, 2016
                                                                  2. Verma S: Pyomyositis in children. Curr Infect Dis Rep. 18(4):12, 2016
                                                                  3. Penn EB Jr et al: Pediatric inflammatory adenopathy. Otolaryngol Clin North Am. 48(1):137-51, 2015
                                                                  4. Pattamapaspong N et al: Pitfalls in imaging of musculoskeletal infections. Semin Musculoskelet Radiol. 18(1):86-100, 2014
                                                                  5. Soldatos T et al: Magnetic resonance imaging of musculoskeletal infections: systematic diagnostic assessment and key points. Acad Radiol. 19(11):1434-43, 2012
                                                                  6. Ranson M: Imaging of pediatric musculoskeletal infection. Semin Musculoskelet Radiol. 13(3):277-99, 2009