HL Flashcards
ped vs AYA lymphoma
child: HL, EBV, larger families, mixed cellularity
AYA: NHL, not EBV, smaller families, nodular sclerosing
HL age distribution
AYA, 6-8th decades
HL RF
F
FHx
childhood: large families, low SES, EBV
Classic HL subtypes
Nodular sclerosis (70%): localized, better px
Mixed cellularity (20%): developing countries, EBV
Lymphocyte rich (5%): better px
lymphocyte deplete (1-2%): worse px, EBV
HL biopsy type and reason
excisional
RS cells are few, in inflammatory background
CD30 L+L
HL
PMNHL
ALCL (CD15 neg)
minority of DLBCL
RS cell altered pathway
NFkB
JAK/STAT
cHL vs NLPHL IHC
cHL: CD30 and 15 ; CD45 neg
NLPHL: CD45 ; neg CD 15 and 30
HL presentation
80% lymphadenopathy: painless, rubbery, firm
2/3 mediastinal mass
1/3 B symptoms
define B symptoms
10% weight loss over 6 mo
fever >38C x 3d
drenching night sweats
HL ix
CT neck-pelvis
PET
baseline: PFT, echo, fertility
Ann Arbor staging system
I: single nodal region or extralymphatic site
II: 2+ nodal regions on same side of diagphragm or localized extralymphatic and 1+ LN
III: both sides of diaphragm
IV: diffuse/disseminated; liver, lung, BM
A: absence of B symptoms
B: B symptoms
E: extranodal
X: bulky mediastinal
S: splenic
HL px factors
type
stage
B symptoms
bulk
slow/incomplete response
HL bulk disease
mediastinal mass > 1/3 thoracic diameter
nodal aggregate >6cm
macroscopic splenic nodules
HL COG risk stratification
LR: I/IIA
IR: I/IIA w bulk, I/IIAE, IIIA, IB, IIB no bulk
HR: IVA/B, IIB w bulk, IIIB
HL SMN risk
19% at 30y
HL treatment by risk stratification
LR: ABVD +-IFRT
IR: ABVE-PC x4 +- IFRT (SER post cycle 2)
HR: BvACVE-PC x5 +- IFRT (SER post cycle 2)
NLPHL tx
resection only
ritux
AVPC x3 +- IFRT (if no CR)
relapse HL px factors
time to relapse: <3mo worse, >12mo best
stage
response to reinduction
histology
B symptoms
refractory
What is PTGC and what does it predispose
progressive transformation of germinal centre
benign
non-clonal
proliferation of large follicles with expanded mantle
ALPS, SLE, Castleman
describe Reed Sternberg cell
large binucleated cells with abundant basophilic cytoplasm and large red nucleoli with characteristic clearing around nucleoli
germinal centre B cell origin
~1% of total cells
Reed Sternberg IHC
CD30
CD15
PAX5
MUM1
Negative CD45, CD19, CD20, EMA
Results of AHOD1331
HR HL
BvAVE-PC x5 superior to ABVE-PC
Deauville 1-5
1: no uptake above background
2: update <= mediastinum
3: upatake > mediastinum but <=liver
4: uptake moderately > liver
5: uptake markedly > liver
1-3 is complete metabolic response (CMR)
NLPHL path/IHC
popcorn cells
CD19, 20, 45, 79A, PAX5
Negative CD10, 15, 30