There are many developmental abnormalities that may appear in the neonate and in infants when critical steps in embryogenesis fail. These steps are often not fatal but can lead to significant morbidity for those patients affected. A logical approach is needed in addressing both the diagnostic and therapeutic issues that arise when caring for these patients, as various lesions will warrant an observational approach, and others may require imaging studies or definitive surgical intervention. Additionally, there are other "lumps and bumps" that are seen in the neonatal and infantile age groups that include malignancies and cutaneous neoplasms with associated systemic sequelae.

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