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Deck name : Hematology Images (50 cards)
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Normal RBC
PMN
Band PMN
Monocyte
Eosinophils
Neutrophil Toxic granulation
Lymphocytes
Plasma cells
Basophil
Downey Cell - Atypical lymphocyte associated with infectious mononucleosis (EBV infection)
Iron deficiency Anemia
Megaloblastic Anemia - impaired DNA synth due to B12 or Folate deficiency
Sideroblastic Anemia ("cut salami") - Ring sideroblasts signify MDS
Elliptocytes - indicative of thalassemia or Fe/Folate deficiency
Target cells - Hallmark of beta-thalassemia
Sicke cell anemia
Aplastic anemia
Meyloperoxidase staining: AML M3 == APML; t(15;17); risk of DIC is high
Auer rod - characteristic of AML
ALL - neoplastic stem cells committed to lymphoid lineage
Pelger-Heuetoid cell - characteristic of MDS
Atypical megakaryocytes unilobate megakaryocytes in MDS
left shift;15% or more metamyelocytes, myelocytes, and even promyelocytes is present. Basophils are increased. CML (Chronic Myelogenous Leukemia)
CLL - lymphoid cells in CLL are slightly larger than normal
TRAP stain Hairy cell leukemia
M-spike; Bence-Jones proteins; lytic bone lesions; BM biopsy shows sheet of plasma cells -> plasmacytosis; Multiple myeloma - Plasma cell dyscrasia
Lacunar cells Nodular Sclerosing Hodgkin's Lymophoma
Mixed cellularity HL - mononuclear RS cells (infected w/ EBV)
Cytokeratin stain to visualize cancer metastatis to bone marrow
Reticulocytes - increased in hemolytic anemia (note blue coloration in comparison to RBC)
Reed-Sternberg cell (owl eyes) - marker for Hodgkin's Lymphoma -- CD15+; CD30+ ; CD45- ; nodular sclerosing HL is most common subtype
EBV - infectious mononucleosis -- B-cells infected, but showing atypical/reactive T-cells; Downey cells
Patient with DIC APML - acute promyelocytic leukemia t(15;17) -- Tx= ATRA (all-trans retinoic acid)
Peautrier Microabscesses - T-cells aggregate in the skin -- T-cell lymphoma (Just memorize for the Boards)
Burkitt Lymphoma t(8;14) -- vacuoles, starry night; associated with EBV
Sickle cell anemia -- in kids, RBCs get sequestered in spleen, splenomegaly, autoinfarction, then spleen shrinks as they go into adulthood; risk of aplastic crisis if Folate deficiency or infected with Parvo B19; Tx by hydroxyurea
Normal blood smear
Iron deficiency anemia
Megaloblastic anemia - due to B12 deficiency, folate deficiency, myelodysplasia, or anything that inhibits DNA synthesis (chemotherapy, etc)
Thrombotic thrombocytopenic purpura (TTP) - microangiopathic hemolytic anemia; schistocytes; inhibition of ADAMTS13; Tx by plasma exchange
Spherocytes - hereditary spherocytosis; or warm autoimmune hemolytic anemia; splenomegaly; risk of aplastic crisis if infected with Parvo B19
Nucleated RBC - note red/pink color of cytoplasm. This may look like plasma cell, but plasma cells rarely appear in PBS.
Essential Thrombocytosis (ET) - mutant JAK2; ^ platelets but dysfunctional, so ->bleeding ; ^ megakaryocytes; **diagnosis by exclusion..**
Hairy cell leukemia - B-cell leukemia; generally good prognosis (Tx by Cladrabine) TRAP test; *** NO LYMPHADENOPATHY**;
Auer Rod --> AML Acute Myelogenous Leukemia -- Acquired mutation arrests marrow stem cell maturation at various stages
Acute leukemia - abundance of blast cells (immature cells)
Chronic leukemia - mature (left-shifted) polys present; thrombocytosis; basophilia
Bite cell - splenic phagocytes bite out clump of Heinz bodies (oxidized/denatured Hb) that form as a result of G6PD deficiency
Rouleux - forming in patient with Multiple myeloma (clonal proliferation of plasma cells); hypercalcemia; lytic bone lesions; M-spike (due to homogeneous Ig production); Bence-Jones proteins (toxic to renal tubules); Tx by autologus BMT, thalidomide, bort
(bcl-2 stain) Germinal center stains positive for BCL-2, so this is a malignant lymphoma
 


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