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Xanthoma of the urinary bladder.
1Department of Pathology, Sørlandet sykehus HF, N-4604, Kristiansand, Norway. christian.fredrik.lindboe@sshf.no
International Urology and Nephrology
|November 25, 2005
Summary
Urinary bladder xanthomas are rare, reactive lesions appearing as yellow-white plaques. These lipid-laden macrophage accumulations can mimic tumors, necessitating careful diagnosis to differentiate from neoplastic processes.
Area of Science:
- Uropathology
- Oncology
- Dermatology
Background:
- Xanthomas are rare, reactive lesions characterized by lipid-laden macrophages.
- Urinary bladder xanthomas present as yellow-white mucosal plaques, potentially mimicking neoplastic conditions.
- These lesions are often associated with underlying inflammatory or metabolic conditions.
Observation:
- A case of a 78-year-old woman with a tumor-suspect xanthoma of the urinary bladder is presented.
- The xanthoma occurred subsequent to multiple resections of non-invasive bladder carcinomas.
- Clinical presentation included yellow-white mucosal plaques suspicious for malignancy.
Findings:
- Biopsy revealed stromal accumulation of lipid macrophages.
- No significant inflammatory component was observed in the lesional tissue.
- Histopathological analysis confirmed the diagnosis of xanthoma, excluding a neoplastic etiology.
Implications:
- Accurate histopathological diagnosis is crucial to distinguish xanthomas from bladder tumors.
- Understanding the reactive nature of xanthomas aids in appropriate patient management.
- Further research into the specific triggers and pathogenesis of urinary bladder xanthomas is warranted.