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Bladder pheochromocytoma with ring calcification

W L Asbury1, P A Hatcher, H R Gould

  • 1Department of Radiology, University of Tennessee Medical Center at Knoxville, 1924 Alcoa Highway, Knoxville, TN 37920, USA.

Abdominal Imaging
|May 1, 1996
PubMed
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A rare prostate paraganglioma, also known as pheochromocytoma, was found in a young male. This tumor involved the bladder and showed ringlike calcification on CT scans, indicating malignancy.

Area of Science:

  • Urologic oncology
  • Endocrinology
  • Radiology

Background:

  • Paragangliomas are rare neuroendocrine tumors that can arise in various locations.
  • Prostate paragangliomas are exceptionally rare, with few cases reported in the literature.
  • Pheochromocytomas are paragangliomas originating in the adrenal medulla, but the term is often used interchangeably with extra-adrenal paragangliomas.

Observation:

  • A 19-year-old male presented with a tumor involving the prostate and urinary bladder.
  • Radiological imaging, specifically computed tomography (CT), revealed a distinctive ringlike calcification within the tumor mass.
  • This calcification pattern is a rare but highly suggestive radiologic sign for pheochromocytoma.

Findings:

  • Surgical excision confirmed the presence of a malignant paraganglioma (pheochromocytoma) in the prostate.

Related Experiment Videos

  • The tumor's location and imaging characteristics presented a diagnostic challenge.
  • The ringlike calcification on CT was a key indicator for the presumptive diagnosis.

    • Implications:

    • This case highlights the importance of considering rare tumor types in urologic oncology.
    • Recognizing specific radiologic findings, such as ringlike calcification, can aid in the early diagnosis of challenging cases.
    • The malignancy of the tumor underscores the need for thorough histopathological evaluation and appropriate management strategies for prostate paragangliomas.