Hem/Onc Flashcards
macrocytic anemia –> methylmalonic acid is high –> what is etiology of anemia?
B12 def
macrocytic anemia –> methylmalonic acid is normal –> what is etiology of anemia?
folate def
children –> what type of leukemia?
ALL
20-40yo –> what type of leukemia?
AML
40-60yo –> what type of leukemia?
CML
> 65yo –> what type of leukemia?
CLL
AML –> RF (2)?
- exposure: benzene, radiation
- CML –> blast crisis
AML –> how dx?
BM bx:
- > 20% blasts
- myeloperoxidase+
AML –> M3 variant –> tx?
vitA
AML –> not M3 variant –> tx?
ctx
AML –> M3 variant –> histology?
auer rods
ALL –> how dx?
BM bx:
- > 20% blasts
- cALL-a+
- Tdt+
ALL –> tx?
ctx + CNS ppx (ARA-C +/- rad)
CML –> how dx?
BM bx –> Philadelphia chromosome/t(9.22)/BCR-ABL
CML –> tx?
imatinib
CLL –> >65yo + asx –> tx?
none
CLL –> >65yo + sx –> tx?
ctx
CLL –> young + donor available –> tx?
stem cell transplant
Hodgkin’s disease –> MC presentation?
painless LAD
MEN1 –> syndrome components?
PPP:
- Pituitary tumor
- hyperPTH
- Pancreas tumor (ie gastrinoma)
von Willebrand disease –> what test to dx? what does it do?
ristocetin cofactor assay –> measure capacity of vWF to agglutinate platelets
vWF –> tx for acute bleeding episodes? how does it help?
DDAVP –> increase release of stored vWF and factor 8 from platelets
presentation: thyroglossal duct cyst vs branchial cleft cyst
thyroglossal duct cyst:
- midline mass
- mv w tongue protrusion
branchial cleft cyst
- lateral to midline
- overlie sternocleidomastoid muscle
cystic hygroma vs thyroglossal duct cyst/ branchial cleft cyst
cystic hygroma: usu diagnosed by 2yo
what is pernicious anemia
gastritis –> loss of gastric parietal cells –> intrinisc factor deficiency –> megaloblastic anemia
hodgkin’s lymphoma –> MC subtype
nodular sclerosing
hodgkin’s lymphoma –> how dx?
excisional LN bx
prostate CA –> metastasizes to?
bone
30F –> severe menorrhagia –> Hb 6 –> 3unit RBC –> 2hr into transfusion –> hypotension, wheezing, diaphoresis, rash
what condition?
anaphylaxis
anaphylactic rxn from blood transfusion –> indicates what condition?
IgA def
tumor marker AFP –> assoc w what malig?
- HCC
- germ cell ovarian
- testicular
differentiate Hodgkin’s vs non-Hodgkin’s lymphoma
Hodgkin’s:
- Reed-Sternberg cells
- better prognosis
non-Hodgkin’s:
- no Reed-Sternberg cells
- worse prognosis
nontender LAD –> next step
excisional bx
nontender LAD –> excisional bx shows lymphoma –> next step?
stage:
1) CXR
2) CT chest/abd/pelvis or PETCT
3) BM bx
Hodgkin’s lymphoma –> risk of what complication
chemotherapy/radiation –> progress to non-Hodgkin’s
lymphoma staging –> what is stage 2?
multiple nodes –> same side of diaphragm
lymphoma staging –> what is stage 3?
multiple nodes –> both side of diaphragm
thrombotic thrombocytopenic purpura –> pathophys
ADAMTS-13 def –> hyaline clot in vessels –> shred RBCs & platelets –> clots –> obstruct flow to distal tissue
thrombotic thrombocytopenic purpura –> presentation
FATRN:
- fever
- anemia (microangiopathic hemolytic)
- thrombocytopenia
- renal fail
- neuro ssx
TTP –> blood smear finding
microangiopathic hemolytic anemia –> schisotocytes
TTP –> tx
exchange transfusion
CBC: decreased platelet smear: schistocytes PT/PTT: normal Fibrinogen: normal D-dimer: normal
what dx?
TTP
CBC: decreased platelet smear: schistocytes PT/PTT: high Fibrinogen: low D-dimer: high
what dx?
DIC
HIT –> tx
- stop heparin
- start argatroban/lepirudin –> bridge to warfarin
immune thrombocytopenic purpura –> pathophys
autoimmune –> Ab to platelet
immune thrombocytopenic purpura –> tx
- steroid
- IVIG
immune thrombocytopenic purpura –> refractory –> tx
splenectomy
wVF dz –> lab findings:
platelets?
PT?
PTT?
platelets: normal
PT: normal
PTT: normal-prolonged (due to dysfunction factor 8)
R supraclavicular adenopathy –> assoc w what malignancies (3)?
- mediastinus
- lung
- esophagus
L supraclavicular adenopathy –> assoc w what malignancies (3)?
- stomach
- GB
- pancreas
differentiate: neurofibromatosis type 1 vs type 2
type 1:
- cafe au lait spots
- lisch nodules
- Crowe sign: axillary freckles
type 2:
- bilateral acoustic neuroma (schwannoma of CN VIII)
- few cafe au lait spots
von Hippel Lindau synd –> assoc w what malignancies?
- RCC
- pheochromocytoma
- hemangioblastoma
Burkitt lymphoma –> tx
rituximab
tumor marker CA 19-9 –> what malig?
pancreatic
tumor marker calcitonin –> what malig?
medullary thyroid CA
tumor marker CEA –> what malig?
epithelial cancers (bowel, lung, thyroid, pancreatic, cervical, bladder, etc)
tumor marker thyroglobulin –> what malig?
thyroid
CLL –> complication
Richter transformation –> conversion to diffuse large B cell lymphoma
cancer death –> top 3
1) lung
2) breast/prostate
3) colorectal
cancer prevalence –> top 3
1) breast/prostate
2) lung
3) colorectal
MEN 2A
PPM:
- PTH
- pheo
- medullary thyroid CA
MEN2B
PMM:
- pheo
- medullary thyroid CA
- mucocutaneous neuromas/Marfanoid