high yield Flashcards
vitamin K dependent coagulation factors
Factors 7, 9, 10 and prothrombin
protein C and protein S
important details of coagulation cascade
- major site of synthesis of factors is liver (liver disease=bleeding)
- Factor 7 has a very short half-life
- vitamin K dependent factors: 2, 7, 9, 10 (procoag) protein C and S (anticoag.)
plasma cell neoplasm def
expansion of a clone of plasma cells (terminally differentiated Ig secreting B cells) that typically secrete a monoclonal Ig (paraprotein/M protein)
cancers that produce parathyroid hormone and result in hypercalcemia
kidney cancer
lung cancer
treatment of tumor lysis syndrome
hydration + allopurinol
signs and symptoms of superior vena cava syndrome
- venous dilatation of arms and chest
- facial flushing and swelling
- dyspnea
- cerebral edema
signs of spinal cord compression
back pain followed by leg weakness
evere back pain in radicular, band-like pattern which precedes motor or sensory deficit
• Weakness in distribution below dermatomal level of pain
• Sensory defect below same dermatomal level
• Hyerreflexia and pathologic long tract signs
• Urinary and rectal incontinence
treatment of hypercalcemia in lymphomas and plasma cell neoplasms
steroid responsive
signs/symptoms of hypercalcemia
- CNS changes
- Polyuria
- Constipation and dysphagia
- Anorexia
- Severe bone pain
- Rarely pancreatitis and kidney stones
- Shortened QT-interval
pericardial tamponade
depends on rapidity of accumulation of pericardial fluid
t(9;22)
philadelpha chromosome; BCR-ABL
CML
small % ALL (poor prognosis; adult form)
treat w/ imatinib
t(8;14)
burkitt lymphoma
myc activation
t(11;14)
mantle cell lymphoma
cyclin D1 activation
t(14;18)
follicular lymphoma
BCL-2 activation
t(15;17)
APL subtype of AML
PML-RAR fusion (treat w/ ATRA)
most common aggressvie lymphoma
diffuse large B cell
most common indolent lymphoma
follicular lymphoma
therapy for diffuse large B cell lymphoma
R CHOP (cyclophosphadmide=alkylating agent, doxorubicin (topo II inhib), vincristine (inhibts MT polymerization), prednisone)
follicular lymphoma vs follicular hyperplasia
follicular lymphoma express BCL2 t(14;18)
symptoms of polycythemia vera
persistent leukocytosis, thrombocytosis, splenomegaly, generalized pruritus (usually after bathing), thrombosis and erythromelagia
Which diseases have JAK2 mutations?
polycythemia vera, essential thrombocythemia, primary myelofibrosis
Which acute leukemia more commonly presents w/ adenopathy?
ALL (and also Burkitt’s lymphoma)
APL key facts
more likely to present with DIC
t(15;17)=PML-RAR fusion
treated w/ ATRA + chemo or arsenic
Which chemotherapy drug is most likely to be later associated with secondary AML?
akylating agents
myelophtisic anemia
• replacement of marrow by infiltrative process→fragmented RBCs in peripheral blood