Leiomyoma of the kidney
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Updated: Oct 1, 2026

In Vivo, Percutaneous, Needle Based, Optical Coherence Tomography of Renal Masses
Published on: March 30, 2015
1Division of Anatomic Pathology and Cytology, Istituto Nazionale per lo Studio e la Cura dei Tumori, Milano, Italia.
Abstract:
This is the report of a 27-year old woman with a symptomatic leiomyoma of the left kidney. Symptoms consisted of a mild discomfort at the left flank and a walking difficulty. A left radical nephrectomy was performed. The tumor measured 15 cm in its largest diameter and was composed of elongated cells which demonstrated positive reactivity with anti-desmin and anti-actin antisera and negative reactivity for S-100 protein and cytokeratins. Histologic differential diagnosis is with other spindle cell renal tumors such as leiomyosarcoma, mesoblastic nephroma, angiomyolipoma, fibroma, schwannoma and sarcomatoid renal cell carcinoma.
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