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A Large Number of Metastatic Subcutaneous Nodules: A Complication of Percutaneous Biopsy for Atypical Renal Cell Carcinoma

Hao Liu, Weiyun Pan, Xiaocao Shen, Nan Zhang



A 68-year-old man underwent ultrasound-guided needle biopsy of a suspicious renal mass. Just two weeks later, a large number of subcutaneous nodules was found in patient's chest-back, neck and axilla. pathology analysis was found to be metastatic subcutaneous nodules, These features suggest that tumor seeding have occurred during the needle biopsy. Despite needle tract seeding is a rare event, this rare complication should be taken into consideration before contemplating its use in a patient.


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Deanne Soares, Nariman Ahmadi, Oana Crainic, et al. Papillary Renal Cell Carcinoma Seeding along a Percutaneous Biopsy Tract. Case Rep Urol. 2015; 2015: 925254.

Arash Akhavein, Molly M Neuberger, Philipp Dahm. Tumour-seeding: a rare complication of ablative therapy for clinically localised renal cell carcinoma. BMJ Case Rep. 2012; 2012: bcr2012006948.

Dwayne T. S. Chang, Hariom Sur, Mikhail Lozinskiy, et al. Needle tract seeding following percutaneous biopsy of renal cell carcinoma. Korean J Urol. 2015; 56: 666–9.

DOI: http://dx.doi.org/10.22037/uj.v0i0.4355


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