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[Post-surgical spindle cell nodule in kidney pelvis]
J Jiménez Calvo1, R Guarch Troyas, F Lozano Uruñuela
1Servicio de Urología, Servicio de Anatomía Patológica, Hospital Virgen del Camino, Pamplona, Navarra.
Actas Urologicas Espanolas
|May 11, 2001
Summary
A rare postoperative spindle cell nodule in the renal pelvis, mimicking sarcoma, was found after kidney stone treatment. This iatrogenic lesion highlights the importance of considering post-surgical inflammation in differential diagnoses.
Area of Science:
- Urology
- Pathology
- Surgical Oncology
Background:
- Postoperative spindle cell nodules are rare proliferative lesions in the urinary tract.
- These lesions can be mistaken for sarcomas during microscopic examination.
- This case presents a spindle cell nodule located in the renal pelvis.
Observation:
- A patient with staghorn lithiasis underwent LOC and percutaneous nephroscopy.
- A subsequent intervention revealed a 2 cm exophytic lesion in the renal pelvis.
- The lesion was easily removed using forceps.
Findings:
- The lesion was identified as a postoperative spindle cell nodule.
- This type of lesion is classified as an iatrogenic inflammatory pseudotumor.
- Differential diagnosis must include sarcomas.
Implications:
- Accurate diagnosis is crucial to avoid unnecessary radical surgeries.
- Urologists and pathologists should consider this entity in patients with a history of recent surgical intervention.
- Recognizing this lesion as a reactive process is key to appropriate patient management.