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Soft Tissue Infection
Esther H. Y. Hung, MBChB, FRCR, FHKCR, FHKAM (Radiology); James F. Griffith, MD, MRCP, FRCR
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KEY FACTS

  • Terminology

    • Imaging

      TERMINOLOGY

      • Definitions

        • Cellulitis: Localized or diffuse soft tissue inflammation of skin and subcutaneous tissues
        • Infective fasciitis: Infection of superficial &/or deep fascia
        • Necrotizing fasciitis: Rapidly progressive infection of superficial and deep fascia associating with vascular occlusion and necrosis
        • Pyomyositis: Infective myositis = suppurative bacterial infection of muscle
        • Phlegmon: Localized, intense inflammation prior to development of abscess or ulceration
        • Abscess: Localized collection of pus

      IMAGING

      • General Features

        • Radiographic Findings

          • CT Findings

            • MR Findings

              • Ultrasonographic Findings

                • Imaging Recommendations

                  DIFFERENTIAL DIAGNOSIS

                    PATHOLOGY

                    • General Features

                      • Gross Pathologic & Surgical Features

                        • Microscopic Features

                          CLINICAL ISSUES

                          • Presentation

                            • Demographics

                              • Natural History & Prognosis

                                • Treatment

                                  Selected References

                                  1. Hayeri MR et al: Soft-tissue infections and their imaging mimics: from cellulitis to necrotizing fasciitis. Radiographics. 36(6):1888-1910, 2016
                                  2. Park M et al: Sonographic findings of common musculoskeletal diseases in patients with diabetes mellitus. Korean J Radiol. 17(2):245-54, 2016
                                  Related Anatomy
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                                  Related Differential Diagnoses
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                                  References
                                  Tables

                                  Tables

                                  KEY FACTS

                                  • Terminology

                                    • Imaging

                                      TERMINOLOGY

                                      • Definitions

                                        • Cellulitis: Localized or diffuse soft tissue inflammation of skin and subcutaneous tissues
                                        • Infective fasciitis: Infection of superficial &/or deep fascia
                                        • Necrotizing fasciitis: Rapidly progressive infection of superficial and deep fascia associating with vascular occlusion and necrosis
                                        • Pyomyositis: Infective myositis = suppurative bacterial infection of muscle
                                        • Phlegmon: Localized, intense inflammation prior to development of abscess or ulceration
                                        • Abscess: Localized collection of pus

                                      IMAGING

                                      • General Features

                                        • Radiographic Findings

                                          • CT Findings

                                            • MR Findings

                                              • Ultrasonographic Findings

                                                • Imaging Recommendations

                                                  DIFFERENTIAL DIAGNOSIS

                                                    PATHOLOGY

                                                    • General Features

                                                      • Gross Pathologic & Surgical Features

                                                        • Microscopic Features

                                                          CLINICAL ISSUES

                                                          • Presentation

                                                            • Demographics

                                                              • Natural History & Prognosis

                                                                • Treatment

                                                                  Selected References

                                                                  1. Hayeri MR et al: Soft-tissue infections and their imaging mimics: from cellulitis to necrotizing fasciitis. Radiographics. 36(6):1888-1910, 2016
                                                                  2. Park M et al: Sonographic findings of common musculoskeletal diseases in patients with diabetes mellitus. Korean J Radiol. 17(2):245-54, 2016