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Abdominal Tumors
1
What are the most common malignant solid abdominal tumors in children?
- a.
Neuroblastomas are derived from neural crest tissue. In the abdomen, they originate from the adrenal glands and parasympathetic ganglia.
- b.
Wilms’ tumors, nephroblastomas, are derived from the kidney. The classic Wilms’ tumor consists of three elements—blastemal, stromal, and epithelial.
- c.
Hepatoblastomas originate in the liver.
2
How does the presentation of neuroblastoma differ from Wilms’ tumor?
Table 91.1
Differences Between Wilms’ Tumor And Neuroblastoma
| WILMS’ TUMOR | NEUROBLASTOMA | |
|---|---|---|
| Age at presentation | 3–4 y | 1–2 y |
| Crosses midline | Rare | Common |
| Surface on palpation | Smooth | Knobbly |
| X-ray calcifications | No | Yes |
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