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Neutropenia
Carol C. Wu, MD
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KEY FACTS

  • Terminology

    • Imaging

      • Top Differential Diagnoses

        • Clinical Issues

          • Diagnostic Checklist

            TERMINOLOGY

            • Definitions

              • Neutrophil: Type of white blood cell that kills & digests microorganisms via phagocytosis
              • Neutropenia
                • Abnormally low level of neutrophils in blood
                • Absolute neutrophil count (ANC) of < 1,500/microliter of blood

            IMAGING

            • General Concepts

              • Radiographic Findings

                • CT Findings

                  • MR Findings

                    • Imaging Recommendations

                      • Image-Guided Biopsy

                        DIFFERENTIAL DIAGNOSIS

                          PATHOLOGY

                          • General Features

                            CLINICAL ISSUES

                            • Presentation

                              • Demographics

                                • Natural History & Prognosis

                                  • Treatment

                                    DIAGNOSTIC CHECKLIST

                                    • Consider

                                      Selected References

                                      1. Shiley KT et al: Chest CT features of community-acquired respiratory viral infections in adult inpatients with lower respiratory tract infections. J Thorac Imaging. 25(1):68-75, 2010
                                      2. Greene RE et al: Imaging findings in acute invasive pulmonary aspergillosis: clinical significance of the halo sign. Clin Infect Dis. 44(3):373-9, 2007
                                      3. Brodoefel H et al: Long-term CT follow-up in 40 non-HIV immunocompromised patients with invasive pulmonary aspergillosis: kinetics of CT morphology and correlation with clinical findings and outcome. AJR Am J Roentgenol. 187(2):404-13, 2006
                                      4. Horger M et al: Invasive pulmonary aspergillosis: frequency and meaning of the "hypodense sign" on unenhanced CT. Br J Radiol. 78(932):697-703, 2005
                                      5. Sonnet S et al: Direct detection of angioinvasive pulmonary aspergillosis in immunosuppressed patients: preliminary results with high-resolution 16-MDCT angiography. AJR Am J Roentgenol. 184(3):746-51, 2005
                                      6. Heussel CP et al: Pneumonia in neutropenic patients. Eur Radiol. 14(2):256-71, 2004
                                      7. Maschmeyer G: Pneumonia in febrile neutropenic patients: radiologic diagnosis. Curr Opin Oncol. 13(4):229-35, 2001
                                      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

                                                • Definitions

                                                  • Neutrophil: Type of white blood cell that kills & digests microorganisms via phagocytosis
                                                  • Neutropenia
                                                    • Abnormally low level of neutrophils in blood
                                                    • Absolute neutrophil count (ANC) of < 1,500/microliter of blood

                                                IMAGING

                                                • General Concepts

                                                  • Radiographic Findings

                                                    • CT Findings

                                                      • MR Findings

                                                        • Imaging Recommendations

                                                          • Image-Guided Biopsy

                                                            DIFFERENTIAL DIAGNOSIS

                                                              PATHOLOGY

                                                              • General Features

                                                                CLINICAL ISSUES

                                                                • Presentation

                                                                  • Demographics

                                                                    • Natural History & Prognosis

                                                                      • Treatment

                                                                        DIAGNOSTIC CHECKLIST

                                                                        • Consider

                                                                          Selected References

                                                                          1. Shiley KT et al: Chest CT features of community-acquired respiratory viral infections in adult inpatients with lower respiratory tract infections. J Thorac Imaging. 25(1):68-75, 2010
                                                                          2. Greene RE et al: Imaging findings in acute invasive pulmonary aspergillosis: clinical significance of the halo sign. Clin Infect Dis. 44(3):373-9, 2007
                                                                          3. Brodoefel H et al: Long-term CT follow-up in 40 non-HIV immunocompromised patients with invasive pulmonary aspergillosis: kinetics of CT morphology and correlation with clinical findings and outcome. AJR Am J Roentgenol. 187(2):404-13, 2006
                                                                          4. Horger M et al: Invasive pulmonary aspergillosis: frequency and meaning of the "hypodense sign" on unenhanced CT. Br J Radiol. 78(932):697-703, 2005
                                                                          5. Sonnet S et al: Direct detection of angioinvasive pulmonary aspergillosis in immunosuppressed patients: preliminary results with high-resolution 16-MDCT angiography. AJR Am J Roentgenol. 184(3):746-51, 2005
                                                                          6. Heussel CP et al: Pneumonia in neutropenic patients. Eur Radiol. 14(2):256-71, 2004
                                                                          7. Maschmeyer G: Pneumonia in febrile neutropenic patients: radiologic diagnosis. Curr Opin Oncol. 13(4):229-35, 2001