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Carcinosarcoma and squamous cell carcinoma of the renal pelvis associated with nephrolithiasis: a case report of each tumor type
Authors:Kayaselçuk Fazilet  Bal Nebil  Guvel Sezgin  Egilmez Tulga  Kilinc Ferhat  Tuncer Ilhan
Affiliation:1. Department of Urology, Mayo Clinic, Rochester, MN;2. Department of Radiology, Mayo Clinic, Rochester, MN;1. Department of Pathology, Hospital Virgen de la Salud, Toledo, 45004, Spain;2. Department of Nephrology, Hospital Universitario Fundacion Alcorcon, 28922, Spain;3. Department of Nephrology, Hospital Virgen de la Salud, Toledo, 45004, Spain;4. Department of Nephrology, Hospital Universitario Doce de Octubre, Madrid, 28041, Spain;5. Department of Pathology, Hospital Universitario Fundacion Alcorcon, 28922, Spain;6. Department of Pathology, Hospital Universitario Doce de Octubre, Madrid, 28041, Spain;1. Division of Electrical Power Engineering, School of Electrical Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, UTM, 81310, Skudai, Johor, Malaysia;2. Institute of High Voltage and High Current, School of Electrical Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, UTM, 81310, Skudai, Johor, Malaysia;3. College of Civil Aviation Technology and Meteorlogy, Espiaa, Libya;4. Department of Electrical Engineering, College of Engineering, Waziri Umaru Federal Polytechnic, P.M.B. 1034. Birnin Kebbi, Nigeria;1. Computer Vision Center and Department of Computer Science, Universitat Autònoma de Barcelona, Edifici O, 08193 Bellaterra, Spain;2. Centre Grup de Tècniques de Separació en Química, Unitat de Química Analítica, Departament de Química, Universitat Autònoma de Barcelona, Bellaterra 08193, Spain
Abstract:Both squamous cell carcinoma and carcinosarcoma of the renal pelvis are uncommon. We report on two cases, one carcinosarcoma and one squamous cell carcinoma of the renal pelvis. In the patient with squamous cell carcinoma of the left kidney, the tumor was neither detectable on preoperative radiological evaluation nor grossly visible in the surgical specimen. This patient, a 56-year-old man, presented with left lumbar pain, hematuria, fever, 4-5 kg weight loss, and untreated nephrolithiasis of the left kidney that had been diagnosed 20 years earlier. The second patient, an 87-year-old woman, also had a long history of left kidney nephrolithiasis and presented with left lumbar pain and hematuria. Both patients underwent nephrectomy for removal of the non-functioning hydronephrotic left kidney. In both cases, microscopic examination of the surgical specimen revealed squamous metaplasia and dysplasia in the pelvicalyceal mucosa, and islands of atypical squamous cells in the renal parenchyma. In the second case, the kidney also showed sarcomatous changes in the pelvis.
Keywords:Carcinosarcoma   Renal pelvis   Squamous cell carcinoma
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