Metastasis of Urothelial Carcinoma to the Wrist: A Case Report of an Overlooked Finding on Whole-body 99m Tc-MDP Scan.
case_report · Level V
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- Record sourced from PubMed, PMID 40001312.
- Also identified by DOI 10.1097/RLU.0000000000005719.
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Abstract
A 65-year-old man presented with painless hematuria and a bladder mass, diagnosed as high-grade papillary urothelial carcinoma following transurethral resection. Considering negative metastasis workup, he was scheduled for radical cystectomy. During follow-up, he reported chronic wrist pain. A whole-body 99m Tc-Methylene diphosphonate (MDP) scan showed focal uptake in the wrist, misinterpreted as arthritis and overlooked as inconsequential. Three months later, x-ray imaging revealed a lytic wrist lesion, later confirmed as metastatic carcinoma through biopsy. Immunohistochemical analysis supported the diagnosis, highlighting the importance of careful interpretation of imaging findings in patients with bladder cancer.
Medical subject headings
- Whole Body Imaging
- Technetium Tc 99m Medronate
- Urinary Bladder Neoplasms
- Wrist
- Bone Neoplasms
- Urothelium