NBME 22 Hematopoietic stem cells (NBME Answers)

NBME 22 Answers ↦

nbme22/Block 4/Question#50 (46.4 difficulty score)
A 31-year-old woman in the second trimester ...
Hematopoietic stem cells🔍,📺
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+21
submitted by keyseph(69),

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tusJ ym owt setn:c rbsattClooo,htyp apiyrrm estm ,vliusl bipathtlnos,orysctoy dan torpohbiacslt lncaaue era lal tmnoncespo of het neigvdpoel natpacle, wihch lisseupp the fseut in tu.ore esehT utsucrtsre rea all iedvdre omfr the lptrosaht,ob icwhh is isdroecedn ytneciexomrba-r sst.iue toopiateei"Hmc mest scl"el is eht ynlo naswre iechoc ttha luwdo dcaeniti teafl psrta ewre f.rmeod

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+4
submitted by seagull(1683),

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iThs si an iecplmoten rimidahtdofy .elom ehyT cnotnai icompneetl etalf tspar liicgnund tesm lselc hciwh aer trmiosy nad vegi isre ot eurutsrtcnud us.iets

kard Can someone explain why the other choices are incorrect?, Thanks +

mtkilimanjaro I got it wrong and put the lacunae one, I wasnt sure if hematopoietic stem cells could occur from the mother as well. If it had any other cell line i wouldve picked it. For the others: this lady has a partial mole, which has fetal parts. A complete mole has NO fetal parts. Both mole types have cyto, syncytio, and villi. Thats how I ruled those ones out +2

+3
submitted by nwinkelmann(312),

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I onwk atth ectoelmp eomls od tno nocatin atlfe ssetiu i(e.. lnyo ichcniroo ,slliuv opoac,ttlrhoystb nad pynssrhiybo)tocslotca nda larpiat lmeo as felta iusset, ohcorcnii s,uilvl brooocas,typhltt and ys.oiortcshclatpynbo vsulibOoy htmtopcaoeiei etms scell era taefl sprat as htye rutn ntoi loodb ,lsecl ubt hatw si the alvrole neofniidit fo etlaf a?strp