ArticleUrology case reports2026
Diagnostic challenges in a rare case of bladder metastasis from lung hepatoid adenocarcinoma: The first reported case.
Article in Urology case reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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6 authors.
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Abstract
Secondary bladder tumors are rare, and hematogenous bladder metastases from lung cancer are exceptionally uncommon. We report the first documented case of bladder metastasis from pulmonary hepatoid adenocarcinoma (HAC) in a 72-year-old man undergoing treatment for lung cancer. An asymptomatic bladder mass was detected during follow-up. Histopathology and immunohistochemistry confirmed metastatic pulmonary HAC and excluded primary urothelial and hepatic tumors. This case highlights the diagnostic value of comprehensive immunohistochemistry and clinicoradiological correlation in distinguishing secondary bladder tumors. Early recognition is essential to guide appropriate multidisciplinary management, although prognosis remains poor.
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