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HEMATOLOGY 1.2
| Question | Answer |
|---|---|
| Accumulation of degraded mucopolysaccharide | Alder Reilly granules |
| Fused primary granules | Auer Rods |
| Large Lysosomal granules | Chediak Higashi granules |
| Mutation in CHS1 LYST gene | Chediak Higashi granules |
| Patient will present with photophobia ar skin hypopigmentation | Chediak Higashi |
| Aggregates of free ribosomes of rough ER | Dohle Bodies |
| Large to purple to black primary granules that are peroxidase positive | Toxic granules |
| Large, crystalline, Dohle like inclusions / spindle shaped / giant platelets / thrombocytopenia | May Hegglin inclusions |
| Normal random activity but characterized by abnormal chemotactic activity | Job's syndrome |
| Abnormal random activity and abnormal chemotactic activity | Lazy Leukocyte syndrome |
| Inability of a phagocyte to kill ingested microorganism because of enzyme deficiency (NADPH Oxidase) / Respiratory burst | Chronic Granulomatous Disease |
| Monocyte with ingested lymphocyte | Tart cells |
| Neutrophils with homogeneous round body / found on SLE | LE cells |
| Also referred as reactive/variant/stimulated lymphocytes or Downey cells | Atypical lymphocytes |
| Vacuolated lymphocyte resembling a swiss cheese or moth eaten appearance | Type III Downey cells |
| Found on IM with round mass of chromatin (ballerina skirt appearance) | Type II downey cells |
| Turk's irritation cell which is actually a plasmacytoid lymphocyte with large black chromatin | Type 1 Downey cells |
| Originally B cells with hair like projection which are identified by being TRAP resistance | Hairy cell |
| Found on CLL / thumbprint appearance | Basket / Smudge cells |
| A T lymphocyte with cerebriform nucleus (brain like) usually seen in mycosis fungoides and sezary syndrome | Sezary cells |
| Cells are like normal lymphocytes except that the nucleus is notched, lobulated and clover-leaf like | Reider cells |
| A plasma cell with red to pink cytoplasm; associated with increased IgA and usually seen in multiple myeloma | Flame cells |
| Individual globules of immunoglobulins | Russel bodies |
| Intranuclear protein inclusions | Dutcher's bodies |
| A plasma cell with vacuoles with large protein globules called as Russel bodies | Grape cell, Berry / Morula or MOTT cells |
| A deficiency in glucocerebrosidase | Gaucher disease |
| Deficiency of sphingomyelinase enzyme | Neimann Pick disease |
| Deficiency in hexosaminidase A | Tay sachs disease |
| Deficiency im hexosaminidase A and B enzyme | Sand Hoff's disease |
| Large number of smudge cells are present / + Reider cells / soccer ball pattern / majority of cases of CLL appears to involve B lymphocytes / more in men than women | Chronic Lymphocytic Leukemia |
| Common type of leukemia in adults | Acute myeloid leukemia |
| Leukemia of childhood and adolescence | Acute Lymphoblastic leukemia |
| Subdivide leukemia according to cellular morphology / cytochemical staining results / immunophenotyping / first system / > or equal to 30% blasts in BM (Acute Leukemia) | French American British (FAB) Classification |
| Widely used to classify leukemia / WHO classification is based on cellular morphology and cytochemical stains, but also utilizes information obtained from immunophenotyping, cytogenetics, abnormalities and clinical syndrome / acute leukemia >20% | WHO classification |
| ALL : are small and homogenous / most common childhood ALL with best prognosis | L1 |
| ALL: lymphoblasts are large and heterogenous /adult type ALL | L2 |
| ALL : BURKITT TYPE / large homogenous and vacuolated / rarest subclass, both can be present in children and adult / poor prognosis | L3 |
| Acute myeloid leukemia, minimally differentiated | M0 |
| Acute myeloid leukemia without maturation / >30% blast / <10% granulocytic cells | M1 |
| Acute Myeloblastic Leukemia with maturation / >30% blast / >30% granulocytic cells | M2 |
| Acute promyelocytic leukemia / >30% blasts >10% granulocytic cells / 30% or >50% promyelocytes | M3 |
| Bundles of auer rods | Faggot cells (DIC) |
| Acute Myelomonocytic Leukemia / 20 to <80% myelocytic cells / <80% monoblast / Naegili type | M4 |
| Acute monoblastic leukemia without maturation / >80% monocytic cells / >80% monoblast | M5a |
| Schilling type Leukemia | M5a |
| Acute monoblastic leukemia with maturation >80% monocytic cells / <80% monoblast | M5b |
| Di GugLielmo's Syndrome | M6 |
| Erythroleukemia / Erythremic Myelosis >30% blast / >50% erythrocytic prscursors | M6 |
| Acute megakaryocytic leukemia / >30% blast / >30% megakaryocytic cells | M7 |
| (-) auer rods / increase WBC count (mature/immature) / shift to the left / non malignant condition response to toxication and severe infection (septicemia) | Leukamoid Reaction |
| AML | Positive for MPO and SBB but negative for TDT |
| ALL | Negative for MPO and SBB but negative for TDT |
| LAP / KAPLOW COUNT on Leukamoid reaction | Increase (increase also in PV and pregnancy) |
| LAP / KAPLOW COUNT on CML | Decrease |
| Specimen for LAP (Leukocyte alkaline phosphatase) | Fresh capillary blood (heparin as anti coag) |
| Used to differentiate acute myelogenous and monocytic leukemia | Peroxidase |
| Used to differentiate acute myelogenous and myelomonocytic leukemia | Sudan Black B |
| Used to differentiate granulocytic cells from monocytic cells (neutrophil + , monocyte -) | Chloroacetate esterase (specific) |
| Used to differentiate monocytic leukemia from granulocytic leukemia (monocyte +, neutrophil -) | Non specific esterase |
| Cyanide resistant peroxidase (specific eosinophil (+) other (-) | Myeloperoxidase |
| Used to differentiate AML to ALL / marker for immature lymphocyte | Terminal deoxyribonucleotidyl transferase |
| Blocky or chunky pattern / L1 and L2 block pattern / bright fuschia pink (magenta red) / all cells are (+) except normal erythroblast | PAS |
| Marker for megakaryocyte / plasma cells / inhibited by addition of sodium fluoride | Alpha napthyl acetate esterase |
| Non specific esterase specific for monocytic origin | Alpha napthyl butyrate esterase |
| Marker for hairy cell leukemia / reticuloendocytosis / HTLV infection | Tartrate resistant acid phosphatase |
| Useful for recognition of mast cells / basophils / differs RTE and WBC | Toluidine Blue (H. pylori) |
| Solid tumor counterpart of plasma cell leukemia | Myeloma |
| SE (+) NSE (-) | M1 M2 |
| SE (-) NSE (+) | M5 |
| SE (+) NSE (+) | M4 |
| Common cutaneous lymphoma | Mycosis fungoides |
| disseminated disease with leukemic presentation and skin and lymph node involvement | Sezary syndrome |
| Presence of Reed Stenberg cells / nodular lymphocyte predominant hodkgin | Hodgkin's Lymphoma |
| Nodular Lymphocyte Predominant Hodgkin | Popcorn cells |
| Based to histologic appearance of the involved tissue from lymph node biopsy | Rye classification of Hodgkin |
| Most widely used staging scheme, depends on histologic type and the extent of tissue involvement | Ann Arbor classification of Hodgkin |
| Starry Sky Pattern | Burkitt Lymphoma / EBV infection / ALL3 |
| This pattern of abnormalities was referred to as refractory anemia | Myelodysplastic Syndrome |
| Ringed sideroblasts for refractory with ringed sideroblast | Refractory with ringed sideroblasts (RARS) |
| Chromosome 22 found to be translocated to chromosome 9 (Philadelphia Chromosome) with poorer prognosis | Chronic Myelogenous Leukemia |
| Normal RBC mass, increase hematocrit, normal EPO / dehydration and shock / Gaisbock Syndrome | Relative Polycythemia |
| Primary absolute | Polycythemia vera |
| Polycythemia in cases of hypoxia, cyanotic heart disease, kidney tumors | 2° polycythemia with appropriately increased EPO |
| Wilm's Tumor | 2° polycythemia with inappropriately increased EPO |
| Genetic polycythemia | Chuvash polycythemia |
| Aspirating unit, dispensers, dilutors, mixing chambers | Hydraulics |
| Vacuums and pressures for operating valves and moving the sample through the system | Pneumatics |
| Electronic analyzers and computing circuitry | Electrical systems |
| AKA low voltage direct current resistance or "Coulter" principle | Electrical Impedance |
| Particles such as blood cells are non conductive but are suspended in an electrically conductive diluent / number of pulse is proportional to the number of cells | Electrical Impedance |
| Sysmex and Coulter uses what principle? | Electrical Impedance |
| RBC dilution factor in Coulter | 1:50,000 |
| WBC dilution factor in Coulter | 1:500 |
| Problems that could lead to positive errors | BEA ( Bubbles, Extraneous electrical pulses, Aperture plugs) |
| Measures cell size | Forward light scatter (2-3°<) |
| Measures cell granularity or complexity | Side scatter (5-15°<) |
| Cell size on the ____ axis | X |
| Number of cells on the ___ axis | Y |
| RBC volume size between ____ | 36fL to 360 fL |
| WBC aperture bath larger than | 35fL |
| First peak of WBC histogram | 35-90fL (small ex. lymphocytes) |
| Second peak (medium ex. monocytes) | 90-160fL |
| Third peak of WBC histogram | 160-450fL (large granulocytes) |
| Platelet histogram | 2 to 20 fL |
| Parameter derived from RBC histogram | MCV and RDW |
| Parameters derived from platelet histogram | MPV and PDW |
| Three part differential | GML (Granulocytes, Monocytes, Lymphocytes) |
| Cold agglutinins cause | Decrease RBC count , increase MCV and MCHC , grainy appearance |
| Lipemia, icterus, chylomicrons causes | Increase Hb and MCH |
| Microcytosis or schistocytosis causes | Decrease RBC count |
| Platelet clumps causes | Decrease platelet count , increase WBC count |
| Originally designed to measure physical properties of cell based on their ability to deflect light | Flow Cytometry |