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Hydatidosis
Tomás Franquet, MD, PhD
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KEY FACTS

  • Terminology

    • Imaging

      • Top Differential Diagnoses

        • Clinical Issues

          • Diagnostic Checklist

            TERMINOLOGY

            • Synonyms

              • Hydatid disease
              • Echinococcosis
            • Definitions

              • Parasitic disease caused by larvae of class Cestoda: E. granulosus & E. multilocularis
                • Pastoral form (E. granulosus): More common, wider distribution, endemic in sheep-raising areas (Australia, Mediterranean region, South America, Middle East, & New Zealand)
                  • Unilocular cystic hydatidosis
                • Sylvatic form (E. multilocularis): Associated with animals in wild ecosystems, especially foxes, wolves, mice
                  • Alveolar hydatidosis
              • Hydatidosis: Human infection by metacestodes
              • Echinococcosis: Term more appropriately used for infection of nonhuman carnivores by adult parasite

            IMAGING

            • Radiographic Findings

              • CT Findings

                DIFFERENTIAL DIAGNOSIS

                  PATHOLOGY

                  • Gross Pathologic & Surgical Features

                    CLINICAL ISSUES

                    • Presentation

                      • Natural History & Prognosis

                        DIAGNOSTIC CHECKLIST

                        • Consider

                          • Image Interpretation Pearls

                            Selected References

                            1. Martínez S et al: Thoracic manifestations of tropical parasitic infections: a pictorial review. Radiographics. 25(1):135-55, 2005
                            2. Pedrosa I et al: Hydatid disease: radiologic and pathologic features and complications. Radiographics. 20(3):795-817, 2000
                            Related Anatomy
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                            Related Differential Diagnoses
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                            References
                            Tables

                            Tables

                            KEY FACTS

                            • Terminology

                              • Imaging

                                • Top Differential Diagnoses

                                  • Clinical Issues

                                    • Diagnostic Checklist

                                      TERMINOLOGY

                                      • Synonyms

                                        • Hydatid disease
                                        • Echinococcosis
                                      • Definitions

                                        • Parasitic disease caused by larvae of class Cestoda: E. granulosus & E. multilocularis
                                          • Pastoral form (E. granulosus): More common, wider distribution, endemic in sheep-raising areas (Australia, Mediterranean region, South America, Middle East, & New Zealand)
                                            • Unilocular cystic hydatidosis
                                          • Sylvatic form (E. multilocularis): Associated with animals in wild ecosystems, especially foxes, wolves, mice
                                            • Alveolar hydatidosis
                                        • Hydatidosis: Human infection by metacestodes
                                        • Echinococcosis: Term more appropriately used for infection of nonhuman carnivores by adult parasite

                                      IMAGING

                                      • Radiographic Findings

                                        • CT Findings

                                          DIFFERENTIAL DIAGNOSIS

                                            PATHOLOGY

                                            • Gross Pathologic & Surgical Features

                                              CLINICAL ISSUES

                                              • Presentation

                                                • Natural History & Prognosis

                                                  DIAGNOSTIC CHECKLIST

                                                  • Consider

                                                    • Image Interpretation Pearls

                                                      Selected References

                                                      1. Martínez S et al: Thoracic manifestations of tropical parasitic infections: a pictorial review. Radiographics. 25(1):135-55, 2005
                                                      2. Pedrosa I et al: Hydatid disease: radiologic and pathologic features and complications. Radiographics. 20(3):795-817, 2000