PEDS MT review questions Flashcards
the primodial gut is divided into what 3 parts?
- foregut
- midgut
- hindgut
which primordial gut forms the physiological herniation? When is this seen?
mid gut
- seen at 8-12 weeks GA
what emryological structure forms the ligamentum teres?
left umbilical vein
what embryological structure forms the ligamentum venosum?
ductus venosus
2 types of buds that form the pancreas and what they form?
- ventral- uncinate/head
2. dorsal: body/tail
what are the three embryological primitice kidneys called?
- pronephros
- mesonephros
- metanephros
2 parts of the adrenal gland?
- medulla
2. cortex
7 year old boy presents for abdo scan. Presents with abdominal pain and distention. Ultrasound demonstrated a large, complex mass in RT lobe of liver with a hyperechoic rim. Anechoic areas are seen along with a few calcifications. Lab reveals normal AFP level. What is the most likely diagnosis?
Mesenchymal sarcoma
abdominal scan ordered on 10 year old with cystic fibrosis. What finding may be expected? (4)
- fatty liver/cirrhosis
- gallstones/sludge
- echogenic panc.
- meconium ileus
ectoderm gives rise to which tissues?
- skin
- nervous system
50% of perdiatric US workload is gyne-torsion, hemorrhagic cysts and PID? True of false?
false
- 50% renal tract
A tumor marker often increases in cases of HCC, hepatoblastoma, and testicular cancer?
AFP
Patients with hemangioendotelioma typically are asymptomatic? T or F?
False
most common perdiatric liver mass?
Hepatoblastoma
most common tumor of liver in neonates?
hemangioma
5 month old presents with palpable liver. Ultrasound reveals a solid, vascular mass with Linear foci within the lesion. Appears rather benign on ultrasound. What is it?
Hemangioendothelioma
A 4yr old boy with glycogen storage disease suddenly presents with liver failure and GI bleeding. Ultrasound demonstrates solid hyperechoic mass occupying the entire liver.
HCC
A 2 year old boy presents with a tummy ache after eating french fries. Sometimes he has nausea. Most common finding on U/S would be?
cholelithiasis
A 7year old girl, with a previous history of Crohn’s disease, presents with RUQ pain and jaundice. Ultrasound reveals severely thickened walls of bile ducts. The most likely diagnosis for this would be?
sclerosing cholangitis
20 day old baby boy presents with absent femoral pulses and blanching of the lower extremities. Ultrasound reveals echogenic material within the aortic lumen.
aortic thrombus
A 4 week old newborn presents with jaundice. Ultrasound reveals a gallbladder of less than 1.5cm in length. The neonate most likely has?
biliary atresia
A 5 year old boy presents with increasing abdominal girth and jaundice. Sonographic findings demonstrate a solid, hypoechoic mass within the bile ducts. This boy has?
Rhabdomyosarcoma
5 month old girl presents with palpable RUQ mass. U/S demonstrated normal liver and GB. A 3cm cystic mass is seen in area of porta hepatis and appears to be separate from GB. Low-level echoes are seen in the dependent portion of the cyst and appear to change position when the patient is rolled into decube. what is the most likely diagnosis?
Type 1 choledochal cyst with sludge
Patient presents with Wilms tumor for an U/S. You see an echogenic mass within the lumen of the IVC and hypoechoic, oval masses surrounding the aorta and IVC. whats the most likely diagnosis?
- ivc thrombus with lymphadenopathy
A child presents with severe hypertention, headaches, and fatigue.
Most likely diagnosis?
coarctation of aorta
Tumor invasion of IVC occurs from? (5)
Wilms tumor Neuroblastoma Sarcoma HCC Lymphoma
US of liver in patients with acute hepatitis may appear normal. T or F?
True
List the types of liver abscesses? (3)
- fungal
- amebic
- pyogenic
Which condition(s) does NOT cause cirrhosis? Biliary atresia Malnutrition Cystic fibrosis Chronic hepatitis Hyperalimentation Medications
Malnutrition and hyperalimentation
they can cause fatty liver
Which pathologies casue increase in AFP?
Hepatoblastoma and HCC
Biliary atresia causes increase in what?
Conjugated / Direct bilirubin
Name the three common symptoms of choledochal cyst?
Abdo pain
Palpable mass
Jaundice