Pediatric Oncology
Education Materials

Congenital vs Acquired

Inflammatory

Neoplastic

Wilms Tumor:

• More likely to have a large unilateral flank mass
• Less likely to cross the midline
• Less likely to be calcified
• Almost always present with signs and symptoms of primary tumor mass

Neuroblastoma:

• More likely to present with signs and symptoms of metastatic disease than Wilms tumor
• May present with abdominal pain and a palpable mass
• More likely to be calcified and cross the midline than Wilms tumor

Lymphoma:

• More likely to have systemic symptoms such as fever, night sweats
• Less likely to cause a large abdominal mass.

Hepatoblastoma:

• Often presents with large abdominal mass

Adrenal Carcinoma:

• Very rare in children

Renal Cell Carcinoma:

• Very rare in children

Rhabdomyosarcoma (RMS):

• May present with an abdominal mass.

Other non-RMS sarcomas such as fibrosarcoma:

• Very rare

Ganglioneuroma