An Unusual Presentation of a Mixed Epithelial and Stromal Tumor in an Elderly Male

Kelvin A Moses,K Jeff Carney,Adeboye O Osunkoya,Irma V Oliva

doi:10.1100/tsw.2010.171

Abstract

Mixed epithelial and stromal tumors (MESTs) of the kidney are rare renal neoplasms characterized by mixed cystic and solid components. These tumors are typically present in middle-aged women as a flank mass, or as a cause of flank pain or hematuria. We outline the case of an older male who presented with an enlarging abdominal mass causing symptoms that suggested a partial small bowel obstruction. Management of the patient and a brief review are discussed.

Highlights

The patient is a 65-year-old Caucasian male who presented initially to an outside hospital with a complaint of abdominal pain, increasing abdominal girth, nausea and vomiting, and no flatus for 24 h
At 2 years follow-up, the patient has done well, there has been no recurrence of the left renal mass, and his creatinine has stabilized at 1.2–1.4 mg/dl
There is a female preponderance of patients with Mixed epithelial and stromal tumors (MESTs) in an approximate F:M ratio of 6:1[1]

Summary

Introduction

The patient is a 65-year-old Caucasian male who presented initially to an outside hospital with a complaint of abdominal pain, increasing abdominal girth, nausea and vomiting, and no flatus for 24 h. His family history was significant for two brothers with known cystic renal disease. An MRI of the abdomen and pelvis revealed a 30.5- 20.4-cm multiloculated or multiseptated cystic mass appearing to originate from the left kidney (Fig. 1a). Moses et al.: Unusual Presentation of Mixed Epithelial and Stromal Tumor

Results

Conclusion