Deja - Internal - Hematology Flashcards
5 Macrocytic anemias:
B12 Folate Alcoholism Hypothyroidism Liver disease
6 Normocytic anemias:
Chronic disease Renal failure Aplastic anemia Spherocytosis Autoimmune destruction Mechanical obstruction
Symptoms of iron def. anemia:
- Pallor
- Tachycardia
- Easy fatigability
- Pica
- Esophageal webs
Triad of Plummer-Vinson:
- Microcytosis
- Atrophic glossitis
- Esophageal webs
Drugs that commonly cause sideroblastic anemia:
- INH.
- Chloramphenicol
- Cu chelators
- Lead
Some other causes of sideroblastic anemia?
- Alcoholism.
2. Heredity.
How is sideroblastic anemia diagnosed?
Iron stain of bone marrow shows ringed sideroblasts with Prussian blue stain.
What can intravascular hemolysis lead to in children?
“Pigment” gallstones.
How is pernicious anemia diagnosed?
- UP MMA.
- UP homocysteine levels.
- Atrophic gastritis on gastroscopy.
- Abnormal Schilling test (not used as much any more).
What is the MCC of folate deficiency?
Hypoalimentation.
What are other causes of folate deficiency?
- Pregnancy.
- Tropical sprue.
- Hemolytic anemia.
- Long-term treatment with TMP-SMX.
- Methotrexate use.
- 5-flourouricil use.
Folate deficiency in pregnancy?
Neural tube defects in the developing fetus.
How can the diagnosis of folate deficiency be differentiated from that of B12?
Normal MMA and NO neurologic symptoms in folate.
6 etiologies of aplastic anemia:
- Parvo B19 in SCA.
- Hepatitis.
- Chloramphenicol.
- Benzene.
- Radiation therapy.
- Idiopathic.
How is aplastic anemia diagnosed?
- Normocytic, normochromic pancytopenia.
2. Hypocellular bone marrow in a bone marrow biopsy.
What can trigger an attack in a patient with G6PD deficiency?
- Infection.
- Fava beans.
- Dapsone.
- Sulfa drugs.
- Primaquine.
- NSAIDs.
Heinz bodies of G6PD def.?
Inclusions within RBCs made of denatured Hb.
What 2 infections are associated with cold autoimmune hemolytic anemia?
- Mycoplasma pneumonia.
2. Mononucleosis.
Platelet <50.000:
Increased RISK for bleeding.
Platelet <20.000:
Significant bleeding begins.
Platelet <10.000:
Patient at risk for an intracranial bleeding.
ALL - Which subtype is more common in children?
80% are L1.
Of the adult cases of ALL, what subtype is most common?
L2.
What is the L3 subtype morphologically identical?
Burkitt lymphoma.
How is ALL diagnosed?
Peripheral blood smear with increased blast cells and TdT+, PAS+, CALLA+.
Prognosis of ALL in children:
80% remission.
Prognosis of ALL in adults:
30% remission.
Subtypes of AML:
M1-M7. M1-M3: Granulocytic differentiation. M4-M5: Monocytic precursors. M6: Erythroblasts. M7: Megakaryocytes.
What hematologic disorder is the M3 subtype associated with?
DIC
Prognosis of AML in adults:
Those younger than age 60 have about a 70-80% remission rate.
What are the unique signs and symptoms of CML?
- Abdominal pain/fullness.
- Anorexia.
- Diaphoresis.
- Bone pain.
Different phases of CML:
- Chronic phase: HSM and increase in WBCs.
- Accelerated phase: Platelet and RBC decrease while patient develops symptoms of night sweats, fever, bone pain, and weight loss.
- Blastic phase: Acute phase of the disease. Blood and marrow are rapidly filled with proliferating blasts.
Blast crisis:
Acute phase of the disease in which the blood and marrow are rapidly filled with proliferating blast cells.
–> Takes about 3-4yrs to develop and death is usually within 3-6months.
Prognosis after a bone transplant in CML?
About 60% of patients go into remission.
What can CML progress to?
AML.
Treatment for hairy cell leukemia?
- IFN-alpha.
2. Splenectomy.
Lymphoma - Can involve the GI tract as well as the head and neck?
DLBCL.
Lymphoma - Can involve the CNS and bone marrow:
Lymphoblastic lymphoma.
Lymphoma - Derived from thymic T cells?
Lymphoblastic lymphoma.
What can the myeloproliferative diseases transform into?
Acute leukemias.
Possible long-term complication that occurs in about 20% of patients with polycythemia vera?
Fibrosis of the bone marrow.
Classical signs-symptoms of essential thrombocytosis?
- Burning and throbbing hands and feet as well as splenomegaly.
- Bleeding from nose and gums due to platelet dysfunction.
Idiopathic myelofibrosis?
Disorder in which there is extensive extramedullary hematopoiesis causing replacement of marrow with fibrous connective tissue.
What is the pathogmononic sign of myelofibrosis?
Peripheral smear shows tear drops.
What is the ratio of white to African Americans who have multiple myeloma?
1:2.
What is the triad that is often seen in MM?
- Anemia.
- Back pain.
- Renal failure.
5 Microcytic anemias:
LISTS
Lead poisoning Iron def. Sideroblastic Thalassemias SCA