American Board of Surgery In-Training Examination (ABSITE) Practice Exam

The most common solid tumor in pediatrics is indeed a central nervous system (CNS) tumor, specifically brain tumors, which account for a significant portion of solid tumors in children. CNS tumors can vary widely in type and location, and they represent a diverse group of tumors, including gliomas and medulloblastomas.

These tumors are particularly important to recognize in the pediatric population because they often present with symptoms that can vary depending on their location in the brain and can include headaches, nausea, and neurological deficits. Their diagnosis and treatment involve a multidisciplinary approach that includes neuroimaging, surgery, and sometimes chemotherapy or radiation therapy.

Neuroblastoma, Wilms tumor, and retinoblastoma are also significant solid tumors in children, but they are not as prevalent overall as CNS tumors. Neuroblastoma is the most common extracranial solid tumor in childhood, occurring primarily in infants and young children, but CNS tumors outnumber it when considered collectively. Similarly, Wilms tumor (a type of kidney cancer) and retinoblastoma (eye cancer) are important in their respective areas but do not surpass CNS tumors as a whole.

Understanding the spectrum of pediatric solid tumors is vital for effective diagnosis and management, as the treatment pathways and