XII - The Hematopoietic and Lymphoid Systems Flashcards
The immediate cause of megaloblastosis, and a common denominator of folic acid and vitamin B12 deficiency
Suppressed synthesis of DNA (TOPNOTCH) Robbins Basic Pathology, 9th ed., p. 648
Disease caused by deletion of 3 alpha globin genes.
Hemoglobin H disease(TOPNOTCH)Robbins Basic Pathology, 8th Ed. p. 431
t(9;22) is also called ______.
Philadelphia chromosome(TOPNOTCH)Robbins Basic Pathology, 8th Ed. p. 465
An X-linked recessive disorder caused by reduction in factor VII activity.
Classic Hemophilia/ Hemophilia A(TOPNOTCH)Robbins Basic Pathology, 8th Ed. p. 474
A 55 year old male presents with pallor and easy fatigability. Physical exam showed massive splenomegaly. CBC showed marked leukocytosis, and a peripheral smear showed numerous neutrophils, metamyelocytes, and myelocytes. SEE SLIDE 12.24. Basophils are also seen. A bone marrow aspirate shows a similar picture. This man likely has (A) a BCR-ABL fusion gene (B) a JAK2 mutation (C) an 8:22 translocation (D) an 11:22 translocation
a BCR-ABL fusion gene (Chronic myelogenous leukemia) (TOPNOTCH)Robbins Basic Pathology, 8th Ed. P 464
Red cells with a central, dark-red puddle due to collection of hemoglobin.
Target cells(TOPNOTCH)Robbins Basic Pathology, 8th Ed. p. 430
The coefficient of variation of red cell volume.
Red cell distribution width (RDW)(TOPNOTCH)Robbins Basic Pathology, 8th Ed. p. 423
Most feared complication of thrombocytopenia
Intracranial bleeding (TOPNOTCH) Robbins Basic Pathology, 9th ed., p. 657
A self-limited disease of adolescents and young adults that is causd by B lymphocytotropic EBV characterized by fever, sore throat and generalized lymphadenitis, an increase of atypical lymphocytes in blood and an antibody and T cell response to EBV.
Infectious mononucleosis(TOPNOTCH)Robbins Basic Pathology, 8th Ed. p. 442
Intermediate-sized round lymphoid cells with 2-5 prominent nucleoli. High rates of proliferation and apoptosis are characteristic. Nuclear remnants phagocytosed by interspersed macrophages with abundant clear cytoplasm, “starry sky pattern” SEE SLIDE 12.13.
Burkitt lymphoma(TOPNOTCH)Robbins Basic Pathology, 8th Ed. p. 453
Patient with this disease has a tendency toward easy bruising and massive hemorrhage after trauma or operative procedures, and recurrent bleeding into the joints. Petechiae are absent. Patients have a prolonged PTT and normal PT.
Hemophilia A and B (Factor VIII and IX Ddeficiency) (TOPNOTCH) Robbins Basic Pathology, 9th ed. p. 663
Myeloid tumor arising from a pluripotent stem cell associated with mutatios of the BCR-ABL gene. If untreated, may progress to a blast crisis.
Chronic Myelogenous Leukemia(TOPNOTCH)Robbins Basic Pathology, 8th Ed. p. 467
A 5 year old male is observed by his mother to have tea-colored urine whenever he has infections. One particular episode of pneumonia required hospital admission, where the child developed jaundice also. A peripheral blood smear showed red cells with Heinz bodies, while other red cells had parts of their cytoplasm “plucked out”. SEE SLIDES 12.4 and 12.5. The child likely has a deficient enzyme required in the production of reduced glutathione, the gene for which is found on (A) X chromosome (B) Y chromosome (C) chromosome 21 (D) chromosome 22
X chromosome (TOPNOTCH)Robbins Basic Pathology, 8th Ed. P 431-432
Condition caused by deletion of 1 alpha globin gene.
Silent carrier(TOPNOTCH)Robbins Basic Pathology, 8th Ed. p. 431
Tear drop cells are also called __________.
Dacrocytes(TOPNOTCH)Robbins Basic Pathology, 8th Ed. p. 440
An 8 year old child from the slums has easy fatigability and pallor. A peripheral blood smear shows large, egg-shaped red cell precursors, and hypersegmented neutrophils. SEE SLIDE 12.7. Short of measuring serum folate and vitamin B12 levels, what finding will suggest a vitamin B12 deficiency, rather than a folate deficiency? (A) gastrointestinal symptoms (B) neurologic symptoms (C) development of congestive heart failure (D) megaloblasts on bone marrow aspirate smears
neurologic symptoms (TOPNOTCH)Robbins Basic Pathology, 8th Ed. Pp 437-439
Subgroup of HL characterized by a large number of small resting lymphocytes admixed with a variable number of benign histiocytes. Variant RS cells described as multilobed, puffy nucleus Which appears like a “popcorn”. Excellent prognosis. SEE SLIDE 12.18.
Lymphocyte-predominance HL(TOPNOTCH)Robbins Basic Pathology, 8th Ed. p. 458
HODGKIN or NON-HODGKIN LYMPHOMA: Extranodal involvement common
NON-HODGKIN (TOPNOTCH)Robbins Basic Pathology, 9th ed., p 442
Polycythemia secondary to reduced plasma volume.
Relative polycythemia(TOPNOTCH)Robbins Basic Pathology, 8th Ed. p. 441
A 40 y/o male presented with unexplained weight loss, fever, and night sweats. Chest radiograph showed a mediastinal mass. Histologic findings showed large cells with multiple nuclei with large inclusion-like nucleolus. What is the most likely diagnosis?
Hodgkin Lymphoma (Presence of Reed-Sternberg cells) (TOPNOTCH)
A 2 y/o child arrived at well-child clinic. Mother reported that her child is exclusively breastfed for 6 months and then supplemented mainly by carrots. The patient is most likely prone to developing anemia caused by:
Vitamin B12 deficiency (TOPNOTCH)
Precipitates of denatured globin seen in RBC’s. SEE SLIDE 12.4.
Heinz bodies(TOPNOTCH)Robbins Basic Pathology, 8th Ed. p. 432
The most common cause of agranulocytosis
Drug toxicity (TOPNOTCH) Robbins Pathologic Basis of Disease, 9th ed., p. 582
Pentalaminar tubules, often with a dilated terminal end (tennis racket-like appearance).
Birbeck granules. SEE SLIDE 12.23(TOPNOTCH)Robbins Basic Pathology, 8th Ed. p. 467
Most common form of Hodgkin lymphoma, characterized by a large cell which has a single multilobate nucleus with small nucleoli and an abundant pale-staining cytoplasm called lacunar cells. Reed Sternberg cells are uncommon. There are also collagen bands that divide the tissue into circumscribed nodules, hence the name. SEE SLIDE 12.16.
Nodular sclerosis HL(TOPNOTCH)Robbins Basic Pathology, 9th Ed. p. 441
Total white cell count is reduced to 1000 cells/uL. Affected persons are extremely susceptible to bacterial and fungal infections.
Neutropenia(TOPNOTCH)Robbins Basic Pathology, 8th Ed. p. 441
Diagnostic criteria for anemia of chronic disease:____ Ferritin____Serum iron level____Transferrin saturation____Total Iron Binding Capacity (TIBC)
Increased ferritinLow serum iron levelsLow transferrin saturationDecreased TIBCNormocytic, normochromic anemia(TOPNOTCH)Robbins Basic Pathology, 8th Ed. p. 435
Cells with fiery red cytoplasm, seen in Multiple myeloma. SEE SLIDE 12.19
Flame cells(TOPNOTCH)
Schistiocytes, burr cells, helmet cells, triangle cells are seen in this condition. SEE SLIDE 12.6
Microangiopathic hemolytic anemia(TOPNOTCH)Robbins Basic Pathology, 8th Ed. p. 433
Hemolysis caused by IgG or IgA antiodies that are active at 37 degC, which results in opsonization of red cells by the autoantibodies.
Warm antibody immunohemolytic anemia(TOPNOTCH)Robbins Basic Pathology, 8th Ed. p. 433
Prominent cheekbones and changes in skull resembling a “crew-cut” skull x-ray.
Sickle cell anemia(TOPNOTCH)Robbins Basic Pathology, 8th Ed. p. 427
Cells with blue globular nuclear inclusions, seen in Multiple myeloma
Dutcher bodies. SEE SLIDE 12.20 (TOPNOTCH)
Tumor of the thymus associated with myasthenia gravis and pure red cell aplasia.
Thymoma(TOPNOTCH)
Inflamed nodes are swollen, gray-red and engorged. There are large germinal centers containing numerous mitotic figures. Affected nodes are tender and fluctuant if with extensive abscess formation.
Acute nonspecific lymphadenitis(TOPNOTCH)Robbins Basic Pathology, 8th Ed. p. 444
Causative agent for cat scratch disease(TOPNOTCH)
Bartonella henselae(TOPNOTCH)Robbins Basic Pathology, 8th Ed. p. 444
Type of lymph node hyperplasia characterized by immune reactions involving the T cell regions. Commonly caused encountered in viral infections, vaccinations, and drug-induced immune reactions.
Paracortical hyperplasia(TOPNOTCH)Robbins Basic Pathology, 9th Ed. p. 428
Treatment for sickle cell disease by increasing levels of HbF.
Hydroxyurea(TOPNOTCH)Robbins Basic Pathology, 8th Ed. p. 428
True or False. Age younger 2 years is associated with a worse prognosis in ALL.
True(TOPNOTCH) Robbins Basic Pathology, 9th ed., p. 592
Most common type of cancer in children; highly aggressive tumors manifest with signs and symptoms of bone marrow failure, or as rapidly growing masses
Acute lymphoblastic leukemia/Lymphoblastic lymphoma(TOPNOTCH) Robbins Basic Pathology, 9th ed., p. 598
HODGKIN or NON-HODGKIN LYMPHOMA: Mesenteric nodes and Waldeyer ring are commonly involved
NON-HODGKIN (TOPNOTCH)Robbins Basic Pathology, 9th ed., p 442
Lymphoblasts with irregular nuclear contours, condensed chromatin , small nucleoli and scant agranular cytoplasm. SEE SLIDE 12.10. Blasts compose >25% of marrow cellularity. Most common childhood leukemia.
Acute lymphocytic leukemia (ALL)(TOPNOTCH)Robbins Basic Pathology, 8th Ed. p. 447
LYMPHOBLAST or MYELOBLAST: Often peroxidase positive
Myeloblast (TOPNOTCH)Robbins Basic Pathology, 9th ed., p 433
Small, dark nuclear remnants seen within red cells in PBS of hereditary spherocytosis. SEE SLIDE 12.2
Howell-Jolly bodies(TOPNOTCH)Robbins Basic Pathology, 8th Ed. p. 425
The most common trigger for episodic hemolysis in G6PD Deficiency
Infection(TOPNOTCH) Robbins Basic Pathology, 9th ed., p. 634
LYMPHOBLAST or MYELOBLAST: Coarse and clumped chromatin with scant cytoplasm
Lymphoblast (TOPNOTCH)Robbins Basic Pathology, 9th ed., p 433
This lymphoma often presents a mass involving the mandible and shows an unusual predilection for involvement of abdominal viscera, particularly the kidneys, ovaries, and adrenal glands.
Endemic Burkitt lymphoma(TOPNOTCH) Robbins Basic Pathology, 9th ed., p. 597
Multiple nuclei, prominent nucleoli, and cytoplasmic droplets containing Ig.
Bizarre, multinucleated cells(TOPNOTCH)
Bone marrow is markedly hypercellular as a result of increased number of megaloblasts, which are large cells that have delicate, finely reticulated nuclear chromatin and abundant basophilic cytoplasm.
Megaloblastic anemia(TOPNOTCH)Robbins Basic Pathology, 8th Ed. p. 437
An 18 y/o male presents with easy fatigability, fever, and cutaneous bleeding. Bone marrow biopsy showed 40% myeloblasts. What is the most likely diagnosis?
AML (TOPNOTCH)
Life span of a normal red cell.
120 days(TOPNOTCH)Robbins Basic Pathology, 8th Ed. p. 424
Abrupt stormy onset, symptoms of depressed marrow function, and mass effects by neoplastic infiltration , including bone pain are more common in ALL or AML?
ALL (TOPNOTCH) Robbins Basic Pathology, 9th ed., p. 592
An 18 y/o female complained of generalized weakness, lethargy, and light headedness. She revealed she was having excessive bleeding during menstruation from the previous 6 months. Upon examining, she was noted to have pallor, tachycardia, and swollen tongue. Most likely morphology of RBC:
Microcytic, hypochromic anemia (Case of IDA) (TOPNOTCH)
Peripheral smear reveals circulating neutrophils, metamyelocytes, and myelocytes. Leukocyte count often exceeding 100,000 cells/uL. SEE SLIDE 12.24
CML (TOPNOTCH)Robbins Basic Pathology, 9th ed., p 446
Condition caused by deletion of 2 alpha globin genes.
Alpha thalassemia trait(TOPNOTCH)Robbins Basic Pathology, 8th Ed. p. 431
Anemia caused by low-affinity IgM which bind to red cell membranes only at temp
Cold antibody immunohemolytic anemia(TOPNOTCH)Robbins Basic Pathology, 8th Ed. p. 433
Decreased gp IIb-IIIa leads to defective platelet aggregation, associated with normal platelet count.
Glanzmann thrombasthenia(TOPNOTCH)
Type of lymph node hyperplasia characterized by 1) preserved LN architecture, 2) variation in size of germinal centers, 3) presence of lymphocytes and phagocytic macrophages (tingible body macrophages). Causes include RA, toxoplasmosis, early HIV infection.
Follicular hyperplasia(TOPNOTCH)Robbins Basic Pathology, 9th Ed. p. 428
Individuals with B-thalassemia who inherit two abnormal alleles, with severe anemia requiring regular blood tranfusions.
B- Thalassemia major(TOPNOTCH)Robbins Basic Pathology, 8th Ed. p. 429
Most common leukemia of adults which usually presents with bone marrow and lymph node involvement.
Small lymphocytic lymphoma/CLL(TOPNOTCH) Robbins Basic Pathology, 9th ed., p. 598
Anemia of beta thalassemia.
Microcytic, hypochromic(TOPNOTCH)Robbins Basic Pathology, 8th Ed. p. 430
On PBS, red cells are spherical which lack central pallor, and they show increased osmotic fragility when placed in hypotonic salt solutions. SEE SLIDE 12.1
Hereditary spherocytosis(TOPNOTCH)Robbins Basic Pathology, 8th Ed. p. 425
Hemolysis and vaso-occlusive crisis are common in this form of anemia caused by mutaion of glutamic acid to valine.
Sickle-cell anemia(TOPNOTCH)
Hodgin lymphoma subgroup not associated with EBV.
Nodular sclerosis and lymphocyte predominant(TOPNOTCH)
Hodgkin lymphoma subgroup with highest count of RS cells.
Mixed cellularity type(TOPNOTCH)
The leading cause of cancer deaths in children
ALL (TOPNOTCH) Robbins Basic Pathology, 9th ed., p. 592
Caused by shiga-like toxin in EHEC (E. coli O157:H7) from improperly cooked burgers.
Hemolytic uremic syndrome(TOPNOTCH)Robbins Basic Pathology, 8th Ed. p. 472
Most common bleeding disorder.
vWF disease(TOPNOTCH)Robbins Basic Pathology, 8th Ed. p. 474
Increase in blood concentration of red cells, with an increase in Hgb concentration.
Polycythemia or erythrocytosis(TOPNOTCH)Robbins Basic Pathology, 8th Ed. p. 441
Plasma cells in sheets, with prominent nucleoli or inclusion containing Ig. Presents as disseminated bone disease, with destructive lytic lesions.
Plasmacytoma / plasma cell myeloma(TOPNOTCH)
Disease that presents as multifocal destructive bone lesions seen as punched-out defects on imaging. Renal involvement is also prominent, causing production of proteinaceous casts in the DCT and collecting ducts.
Multiple myeloma(TOPNOTCH)Robbins Basic Pathology, 9th Ed. p. 438
In primary myelofibrosis, marrow fibroblasts are stimulated to proliferate by PDGF and TGF-beta released from (A) granulocyte precursors (B) erythroid precursors (C) lymphoid cells (D) neoplastic megakaryocytes
neoplastic megakaryocytes (TOPNOTCH)Robbins Basic Pathology, 8th Ed. P 466
Peripheral smear reveals red cells with bizarre shapes (poikilocytes, teardrop cells), immature erythroid and white cell precursors (leukoerythroblastosis). In advanced cases, bone marrow is hypocellular and fibrotic.
Primary myelofibrosis (TOPNOTCH)Robbins Basic Pathology, 9th ed., p 446
Cells found in adult T-cell lymphoma which appear to have multilobulated nuclei.
Cloverleaf or flower cell. SEE SLIDE 12.17. (TOPNOTCH)
Most common lymphoma of adults
Diffuse Large B-Cell Lymphoma(TOPNOTCH) Robbins Basic Pathology, 9th ed., p. 598
A distinctive groups of neoplasms that arise almost invariably in a single lymph node or chain of lymph nodes and spread characteristically in a stepwise fashion to anatomically contiguous nodes.
Hodgkin Lymphoma(TOPNOTCH)Robbins Basic Pathology, 8th Ed. p. 456
Heinz bodies are seen in the blood smear of this condition.
G6PD Deficiency(TOPNOTCH)Robbins Basic Pathology, 8th Ed. p. 432