Heme and GI 1B Flashcards
When we have Follicular lymphoma, what is DDX between this and Follicular Hyperplasia?
What are the genetics for Follicular Lymphoma?
Follicular Hyperplasia: tingible body in GC express Bcl-2
Follicular Lymphoma: no tingible macrophages, disrupts architecture
t(14;18) BCL-2 (inhibits apoptosis)
Mantle Cell lymphoma has genetic properties?
What does the cyclin allow?
t(11;14) of cyclin D1
CD5+++++++++
G1/S phase
Marginal Zone has a unique treatment, what is it?
What is the genetic properities? What are the CD markers?
can treat with antibiotics
t(11;18) CD19, CD20
What is the DDX of toxoplasmosis assuming there is a ring enhancing lesion on MRI?
EBV infection, Primary Central Nervous System lymphoma
Adult T cell lymphoma has what CD markers?
What is the virus?
CD4 and CD 30
HTLV
Adult T cell lymphoma has lytic bone lesions, hypercalcemia, cutaneous lesions, common in Japan, what is the DDX?
Multiple Myeloma
What is the CD marker for Pautrier Microabscess?
What is Mycosis fungoides, cutaneous T cell lymphoma?
CD4 and CD 30
Skin patches and plaques, cutaneous T cell lymphoma
Look out for cerebriform nuclei
What is CD15 and CD30, Pax 5 positive?
Hodgkin Lymphoma
Hodgkin Lymphoma: Mixed Cellularity, what is the main item seen with it?
What is the main IL marker?
eosinophillia
IL-5
What Hodgkin lymphoma has the best outcome?
Nodular Sclerosis, Broad Bands of Fibrosis
ALL: what is the main marker for pre-T and pre-B cells?
TDT+
pre-B cells: CD10, CD19, CD20
Pre-T cells: CD 2 and CD 8
What is the typical translocation for ALL?
Where would ALL spread too, may need special help with chemo?
t(12;21)
CNS and Testes
In the world of Leukemias:
Down Syndrome after the age of 5?
Down Syndrome before the age of 5?
Acute Lymphoblastic Leukemia
Acute Megakaryocyte Leukemia (elevated megakaryocytes), no MPO
CLL, is positive for what three things?
What can it transform too?
CD 5, CD 20, CD 23
Richter transformation into an aggressive lymphoma (DLBCL)
What is this from?
Assuming we have a leukemia?
CLL smudge cell
THis has dead background artifact
When there is filamentous, hair-like projections?
No peripheral lymphadenopathy
But what kind of spleenomegaly?
Hairy Cell Leukemia
Red Pulp Massive Splenomegaly
Hairy Cell Leukemia stains positive for TRAP.
What will a bone marrow biopsy have?
What is the mutation?
What does it have excellent response too?
Dry tap on aspiration
BRAF 600
2-CDA
AML has a positive stain for what?
What is seen on the peripheral smear?
Myeloperoidase +
circulating myeloblasts, commonly presents with DIC
What is the AML genetic mutation?
What is the treatment?
APL t(15;17)
all-trans retinoic acid and arsenic
What is the risk factor for AML?
What is the give away on a path stain?
Radiation, chemotherapy, myeloproliferative disorders
Auer Rods, activate the coagulation cascade