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Peds abdomen
question and answer
7
Medical
Professional
04/29/2009

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Cards

Term
What is the most common solid abdominal mass in a child (over 2 yrs)?
Definition
Wilms' tumor
Term
What are some causes of multifocal renal masses in a child?
Definition
  • Nephroblastomatosis
  • Pyelonephritis
  • Lymphoma/Leukemia
  • Metastases
  • Infarcts (sickle cell dz)
Term
What is the most common renal neoplasm in a neonate (0-6 months)?
Definition
Mesoblastic nephroma
Term
Multilocular cystic nephroma is found in what age and sex distribution?
Definition

Young boys <4

Older women >40

Term

Regarding neuroblastoma, which one is false?

  1. Incidence - 25% of all pediatric malignant tumors.
  2. < 4 years of age
  3. 85% with calcifications
  4. 2/3 abdomen, 1/3 thorax
  5. 90% have elevated catecholamines
Definition
1. Incidence is 10%, not 25%.
Term
What is the most common neonatal adrenal "mass"?
Definition
Hemorrhage
Term

Which one of these occurs in very young infants?

  • Hepatoblastoma
  • Hepatocellular carcinoma
  • Hemangioendothelioma
  • Mesenchymal hamartoma
Definition

Answer:

  • Hepatoblastoma: <5 yrs
  • Hepatocellular carcinoma: >5 yrs
  • Hemangioendothelioma: infants
  • Mesenchymal hamartoma: 4 mon - 2 yrs
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