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PA RT  FIV E




                                                   Nonmalignant Leukocyte Disorders



















                                                 18                          Disorders of Granulocytes and

                                                                                     Principles of Blood Collection
                     CHAPTER                                                 Monocytes



















                                KEY TERMS






                   Alder-Reilly anom aly                                                   hyposegm entation                                                       myeloperoxidase (MPO) de  ciency
                   Chédiak-Higashi syndrom e                                               Lazy leukocyte syndrom e                                                neutropenia

                   chem okinesis                                                           Leukocyte adhesion de  ciency (LAD)                                     Niem ann-Pick disease
                   chronic granulom atous disease                                          leukocytopenia                                                          Pelger-Huët anom aly

                   Döhle bodies                                                            leukocytosis                                                            reactive neutrophilia
                   Ehrlichia                                                               lysosom al storage diseases                                             Sea-Blue Histiocytosis

                   eosinophilia                                                            May-Hegglin anom aly                                                    Tay-Sachs disease
                   Gaucher’s disease                                                       mucopolysaccharidosis)                                                  toxic granulation

                   hypersegm entation                                                      m yelokathexis







                            LEARNING OUTCOMES






                   Granulopoietic alterations: quantitative                                                                    ■   Describe the appearance of cells with the following cytoplasmic

                   disorders                                                                                                       abnormalities:  toxic  granulation,  Döhle  bodies,  Ehrlichia,  and



                   ■   De  ne the terms leukocytosis and leukocytopenia.                                                           vacuoles.

                   ■   Explain quantitative neutrophil responses in normal and nonmalig-                                       ■   Recognize cellular alterations when stained blood   lms and digital
                       nant conditions.                                                                                            images of Chédiak-Higashi syndrome, Alder-Reilly inclusions, and


                   ■   List examples of general conditions that can cause leukocytosis.                                            Ehrlichia are observed.
                     Summarize the pathophysiology of granulopoietic alterations.                                              ■   Recognize May-Hegglin anomaly on stained blood   lms and digital


                   ■   Describe  at  least  one  representative  condition  in  which  an                                          images.
                       increase in neutrophils, eosinophils, basophils, or monocytes can                                       ■   Abnormalities of mature granulocytes in body   uids.

                       be found.                                                                                                 Describe abnormal inclusions that can be seen in granulocytes

                     Assess  the  steps  in  the  workup  of  a  differential  diagnosis  in                                       obtained from body   uids.

                       neutrophilia.

                     Describe the methods for recognizing leukemoid reactions versus                                           Inherited functional abnormalities

                       leukemia, and leukoerythroblastosis.                                                                      Assess and summarize the clinical and laboratory characteristics of


                   ■   List examples of common conditions that can cause neutropenia.                                              May-Hegglin anomaly, Chédiak-Higashi Syndrome, and Alder-Reilly
                     Compare the conditions of transient and congenital neutropenia.                                               anomaly.


                   ■   List at least one representative condition in which a decrease in
                       neutrophils, eosinophils, basophils, or monocytes can be found.                                         Granulopoietic alterations: qualitative disorders

                                                                                                                                 Describe the characteristics of lazy leukocyte syndrome and leuko-
                   Morphological abnormalities of mature                                                                           cyte adhesion de  ciency.

                   granulocytes                                                                                                  Compare chronic granulomatous disease, myeloperoxidase (MPO)


                   ■   Identify nuclear alterations such as hypersegmentation, Pelger-                                             de  ciency, and other defects in microbicidal activity of neutrophils

                       Huët anomaly, pseudo–Pelger-Huët anomaly and pyknotic forms on                                              and monocytes.

                       stained blood   lms and digital images.








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