LIMFOAME Flashcards
Limfom - def
neo al sist imunitar - afect ggl limfatici, splina, amigdale, mo in principal
Limfom Hodgkin - def
neo limfoida caract prin prez cel Reed-Sternberg
LH - clinic
debut insidios cu adenopatii laterocervicale
semne gen
durere in ariile limfatice interes dupa cons alcool
prurit
sdr compresiv
LH - biopsie ggl
GRANULOM HODGKIN = CRS/H + pop polimorfa reactiva (Ly, Eo, Mfg)
cel REED STERNBERG - cel mare, nucl vol, polilobal, nucleoli vol (“bufnita”)
cel HODGKIN - var a CRS (uninucleata, uninucleolata)
ambele provin din linia B (CD 19, 20, 22, 30, 15, 25)
LH clasic - caract
CRS & CH exprima CD15, CD 30
LH clasic - scleroza nodulara
fibroza nod in jurul nodulilor limfoizi
CRS lacunare
prez frecv mediastinala, mai frecv la femei
LH clasic - celularitate mixta
pop cel polimorfa - Ly, Mfg, PMN, eo, pl
frecv in stadii avansate
LH clasic - bogat in Ly
infiltrat predominant cu ly mici, pred T in jurul CRS
prez cervic inalta
LH clasic - depletie Ly
disparitia limfocitozei react
stadii avans la debut, prognostic nefav
LH cu predominanta Ly si disp nodulara
cel neo rare cu nucl unic, lob = cel popcorn
CD20 +, CD 15, 30 -
adenopatii loc
evol indolenta
LH - hlg
anemie
LEU crescute cu neutrofilie, eozinofilie, limfopenie
Stadializarea ANN-ARBOR
I - afect unui singur ggl/ gr ggl
II - afect a >2 gr ggl sit de aceeasi parte a diafragmului
III - interes limfatica supra si sub diafragmatica
IV - stadiul de visceraliz prin disemin hematogena
+ A (fara semne gen)/B (cu semne gen)
+E (extindere viscerala prin contiguitate)
LH - evol, prognostic
evol var, prognostic bun
FR - tip histo CM, DL, varsta >40 ani, sex masculin, VSH >40 mm/h, semne gen, stafiu III/IV, forma bulky, interes viscerala prin contig
LH - tratament
linia 1 - chimioterapie (ABDV, BEACOPP) + radioterapie (forme bulky) linia 2 (refract, recidiv) - DHAP/IGEV, chimio high doze + autotransplant, Ac monoclon (adcetris - anti CD30; nivolumab - anti PD1) linia 3 (refract, a doua recidiv) - alta chimio, allogrefa de cel stem
LNH - fact predispozanti
fact genetic
imuno - deficite imune congenit, SIDA, b autoimune
mediu - infectii bact (HP), infectii virale (HTLV, EBV, HCV), radiatii, chimicale
LNH - anomalii citogenetice
\+ c-myc (protooncogena) t(8,14) -> limfom burkitt \+ bcl2 t(14,18) - limfom folicular t(11,14) ciclina D1 - de manta t(2,5) gena ALK - limfom anaplastic oncogene fam bcl translocatii care intereseaza TCR
LNH - patogeneza
prolif policlonala (+ Atg) -> acum anomalii citogen -> o clona capata avantaj de crestere => selectia clonei resp
LNH - clinic
asimptomatici adenopatii - dimens, consist var, generaliz, cu ext centrifuga, cu salt peste anumite statii ggl hepatosplenomegalie simpt gen det limfomatoase cut det GI (diaree, malabs, subocl)
LNH - biopsie ggl
marimea cel, grad de dif, dispozitia
LNH cu grad redus de malignitate
cel mici, mature, disp nod
LNH cu grad inalt de malignitate
cel mari, imat, disp difuz
LNH - hlg, BOM
N/ leucocitoza+anemie+trombopenie
infiltrat limfomatos in mo
LNH indolente cu cel B
LNH limfocitic (LLC)
limfoplasmocitoid/ MGW
tip MALT
folicular gr I, II
LNH agresive cu cel B
LNH folic gr III LNH cel de manta LNH difuz cu cel mari LNH limfoblastib B (LAL B) Burkitt
LNH indolente cu cel T
Leucemia cu limfocite mari granulare
mycosis fungoides
LNH agresive cu cel T
LNH T perif LNH angioimunoblastic LNH anaplazic T LNH limfoblastic T leucemia/limfomul cu cel T adulte
LNH indolente - evolutie, prognostic
evolutie lunga, indolenta
stab dg - generaliz
nu sunt curabile
sv 5 ani 70-80%
LNH agresive - evolutie, prognostic
evol rapide
surprinse in stad I, II
pot curabile (30-40%)
sv 5 ani - 30-40%
LNH - index prognostic international
varsta > 60 ani IP > 2 stad III, IV >1 interes extraggl LDH crescut 0-1 - risc scazut, 2 risc scazut/mediu, 2-3 mediu/crescut, 4-5 risc crescut
LNH ale tes limfoide asoc muc (MALT)
de obicei indolente
prolif LyB mici
atingere extraggl izolat
disemin lenta cu invad altor MALT
LNH gastric
etio - HP
erad HP -> vindec limfom in stadii incipiente
LNH cutanata cu cel T - Mycosis fungoides
eritrodermie descuamativa +/- tu cut
infiltrat dermic cu LyT CD4+
cel maligne in sg perif - sdr Sezary
LNH - tratament
observare - limfoame indolente
radioterapie - forme bulky, irad superf cu electroni (MF)
chimioterapia - R-CHOP
polichimioterapie de salvare - DHAP
high dose chimio + autotransplant de CSH
imunoterapie - rituximab, alemtuzumab (anti CD52)
radioimunoterapie - anti CD20 + iod/yttrium radioactiv