Presacral Neuroblastoma Presenting as Acute Urinary Retention in an Infant: A Case Report
摘要
Neuroblastoma is the most common extracranial solid tumor of childhood and typically originates in the adrenal medulla or along the sympathetic chain. Pelvic neuroblastomas are exceptionally rare, and presentation with acute urinary retention is rarer still. Prompt recognition of such atypical presentations is critical for preventing neurologic and urologic complications.
Case PresentationA 9-month-old girl presented with acute urinary retention. Imaging (CT and MRI) revealed a large, heterogeneously enhancing presacral mass extending through the neural foramina into the spinal canal, with associated sacral bone erosion. Urinary vanillylmandelic acid and homovanillic acid levels were markedly elevated. Core-needle biopsy confirmed poorly differentiated neuroblastoma with unfavorable histology. Multidisciplinary management—including surgical debulking followed by adjuvant chemotherapy—was initiated, leading to gradual improvement in bladder function.
ConclusionsPelvic (presacral) neuroblastoma should be considered in infants who present with unexplained urinary retention. Early imaging, catecholamine metabolite testing, and coordinated surgical–oncologic care are essential to optimize both functional and oncologic outcomes.