Most Common & ages & other shizz Flashcards
HCC (hepatoma) ages:
children >3yrs
_______ solid peds tumors are malignant
2/3
What is similar to HCC/hepatoma
hepatoblastoma
What is the most common pediatric liver mass
hepatoblastoma
Hepatoblastoma age
boys <5yrs
Triad of hepatoblastoma
hep tumor, inc AFP, thrombocytosis
Hepatitis occurs
1-2 mo after birth
What is the most common neonate liver mass
hemangioma
Hemangioendothelium occurs in kids
less than 6mo
Cavernous hemangioma occurs in
girls
evident by 2 mo
Mesenchymal hamartoma resembles _______ but _________
hemangioma, vascular
Adenoma is a/w:
glyc storage dx
Fibrolamellar HCC affects
teenager and young adults
Mesenchymal sarcoma occurs in
5-10 yr olds
What is the most common association with liver mets
neuroblastoma
___ is the most common cause of hep
A
Hep fibrosis is associated with
ARPKD
Hep cysts are a/w
MKPD and Von Hippel Lindau dx
or trauma
Rhabdomyosarcomas occur in
1-5yrs of age
2 major causes of conjugated hyperbilirubinemia in newborns
hep
ba
2 findings of BA
triangular cord sign
GB length <1.5cm or absence
What’s the 1st and 2nd mc cause of obstructive jaundice for neos
BA
rhabdomyosarcomas
What’s the 1st and 2nd mc cause of obstructive jaundice for kids
choledochal cyst
rhabdomyosarcomas
What is the most common reason for evaluating aorta in neos
thrombus
What are usually a/w enlarged lymphs
lymphoma, Wilm’s and neuroblastoma
What is the most common presacral mass
sacrococcygeal teratoma
Cystic fibrosis affects what organs
lungs, liver, kidneys, intestines, and panc
Most of islet cell tumors are functioning or nonfunctioning
functioning
Where are insulinomas located in panc
body and tail
What’s considered a dilated panc duct
> 1.5mm
Pathologic gastric wall
5-15mm
Normal gastric wall
2.5-3.5mm
Who does hypertrophic pyloric stenosis affect
first born males (u r at risk)
When does HPS present by
1-2mos
HPS sonographic sign
donut
What’s the criteria of diagnosing HPS
AP of diameter- 1.5cm
length of antrum- 1.8cm
thickness- 4mm
Meconium ileus is a/w
cystic fibrosis
Sonographic sign of malrotation
whirlpool
Most common type of intussusception
ileocolic
Ages of intussuception
Boys 1-3yo
Ages for Crohn’s dx
ages 10 or older
Neuroblastoma vs. ganglioneuroma/neuroblastoma
the G’s are in older kids
Adrenal cysts bilateral or uni
uni
Measurements a/w CAH:
L->20mm
W->4mm
of renal pyramids
8-18
Renal pelvis should be _______ AP in supine
<10mm
Renal agenesis facts:
uni m/c than bi
boys>girls
left
Duplex kidneys are uni/bilateral
bi
What’s the m/c cause of hydronephrosis
UPJ obstruction
Dyplasia of the kidney is a/w
UT malformations
What pathology is the key hole sign a/w
PUV
What are 3 important things to determine when scanning abdominal masses
mets
origin of mass
extent of mass
Wilm’s tumor age
3-4yrs
What’s the m/c malignant tumor in peds patients
Wilm’s
What is a/w angiomyolipoma
tuberous sclerosis