NBME 23 Densely packed capillaries (NBME Answers)

need help with your account or subscription? click here to email us (or see the contact page)

search for anything ⋅ score predictor (“predict me!”)

Retired NBME 23 Answers

nbme23/Block 2/Question#27 (reveal difficulty score)
A 3-month-old girl is brought to the ...
Densely packed capillaries 🔍 / 📺 / 🌳 / 📖
tags:

+6 upvote downvote
submitted by ∗mousie(272)

get full access to all content ⋅ pick a username

A hemangioma is a type of benign (non-cancerous) tumor in infants. This abnormal cluster of small blood vessels appears on or under the skin, typically within one to three weeks after birth. - www.childrenshospital.org Hemangioma is a BV/capillary birthmark

get full access to all content ⋅ pick a username

sympathetikey Probably a Strawberry Hemangioma since she's a baby +10

meningitis Can anyone explain what is option A? +2

redvelvet bc, it's a benign "capillary" hemangioma, we can see "thin-walled blood vessels with narrow lumens filled with blood and separated by connective tissue". It sounds similar to "arterioles in a fibrous stroma" but it's capillary. +1

peridot @meningitis I believe option A ("arterioles in a fibrous stroma") is describing an angiofibroma. The name angiofibroma already tells you that there is some component of fibrotic tissue involved, whereas in this case of strawberry hemangioma, the name tells you that it's more like pure blood vessels (capillaries in this case). +5

madamestep @periodt Also those are pretty much always going to be in teen boys with recurrent nosebleeds! +

+5 upvote downvote
submitted by ∗mutteringly(33)

get full access to all content ⋅ pick a username

Answer is not C) Cavernous vascular spaces because that is specifically talking about cavernous hemangiomas - often asymptomatic but involving deeper tissues of body, primarily in liver (abdominal pain and RUQ fullness) and brain (can cause intraparenchymal hemorrhage).

get full access to all content ⋅ pick a username

Must-See Comments from nbme23

ferrero on Precapillary resistance
yotsubato on 99%
sne on Triglyceride
sajaqua1 on Area labeled ‘D’ (Spinothalamic tract, right)
stinkysulfaeggs on Hypoglycemia
hayayah on Iris
soph on Peak inspiratory pressure (alveolar): ...
seagull on Area labeled ‘C’ (Cranial nerve 8: ...
water on Dietary change
wired-in on 28.8
beeip on Binding of permeable ligand to nuclear ...
thomasalterman on Hypoglycemia
yotsubato on Inhibition of the cytochrome P450-dependent ...
seagull on Decreased sodium bicarbonate reabsorption in ...