COLLISION TUMOR OF THE KIDNEY- PAPILLARY RENAL CELL CARCINOMA AND SQUAMOUS CELL CARCINOMA- A UNIQUE CASE REPORT.

Dr. Gahine Renuka; Dr. Agrawal Apurva; Dr. Bhaskar Vanita; Dr. Siddiqui Rabia Praveen; Dr. Joshi Chandrakala

Volume : VIII, Issue : IX, September - 2019

COLLISION TUMOR OF THE KIDNEY- PAPILLARY RENAL CELL CARCINOMA AND SQUAMOUS CELL CARCINOMA- A UNIQUE CASE REPORT.

Dr. Gahine Renuka, Dr. Agrawal Apurva, Dr. Bhaskar Vanita, Dr. Siddiqui Rabia Praveen, Dr. Joshi Chandrakala

Abstract :

Introduction: Papillary Renal Cell Carcinoma is a neoplasm of the kidney with clinicopathologic peculiarities which present as incidental masses discovered on imaging workup for other causes having independent origin. The reported 5–year disease–free survival is more favourable in papillary RCC than it is in clear cell RCC Also, it has been described in association with clear cell renal cell carcinoma, sarcomatoid renal cell carcinoma, medullary renal cell carcinoma and so on. Squamous renal carcinoma is a very rare neoplasm with a malignant course. We present a rare case of a collision tumor of the kidney having Papillary Renal Cell Carcinoma (RCC) and Squamous Cell Carcinoma which to the best of our knowledge, has not previously been reported. Case Report: A 60 year old female patient presented with sudden onset of abdominal pain since 4 months. Provisional diagnosis given on the basis of radiological findings was malignant renal cell carcinoma. Final histopathological diagnosis given was Papillary Renal Cell Carcinoma (type 1) along with extensive areas of Squamous Cell Carcinoma, moderately differentiated involving whole of pelvicalyceal system with infiltration into renal parenchyma. Conclusion: This case is being presented for its rarity as well as paucity of similar case in literature so far. Squamous cell carcinoma of the kidney usually behaves aggressively. Early diagnosis and surgical treatment before the tumor has extended beyond the capsule offer the best hope of cure.