Metastatic SMARCB1-Deficient Renal Medullary Carcinoma without Hemoglobinopathy with Durable and Dramatic Response to Pembrolizumab plus Lenvatinib: Case Report.

ABSTRACT:

Introduction

Renal medullary carcinoma (RMC) is a rare form of renal cell carcinoma (RCC) that is typically associated with a loss of function in SMARCB1 and diagnosis of sickle cell or other hemoglobinopathy. In rare cases, this disease can be seen in patients without hemoglobinopathy and is classified as "SMARCB1-deficient RMC without hemoglobinopathy" or referred to as "RCC unclassified with medullary phenotype" in some of the literature. Platinum-based cytotoxic chemotherapy is currently the recommended first-line treatment for this rare disease.

Case presentation

Here we report a 53-year-old male who was diagnosed with metastatic SMARCB1-deficient RMC without hemoglobinopathy after presenting with left flank and abdominal pain. After initiating first-line pembrolizumab

SUBMITTER: McCamy W 

PROVIDER: S-EPMC11521492 | biostudies-literature | 2024 Jan-Dec

REPOSITORIES: biostudies-literature