Misdiagnosing recurrent medulloblastoma: the danger of examination and imaging without histological confirmation.

The screening and detection of recurrent medulloblastoma presents the clinician with significant diagnostic challenges, including the risk of misdiagnosis. The authors present the case of a young girl with a history of a treated standard-risk medulloblastoma that highlights the risk of assuming recurrence has occurred when clinical and/or imaging changes are observed. This girl developed both new clinical deficits and had radiographic evidence of recurrence. She subsequently experienced a complete resolution of symptoms and radiographic findings with steroids alone.