Rectal carcinoma presenting as vulvar metastasis: A case report.

INTRODUCTION

Metastatic adenocarcinoma to the vulva is a rare phenomenon, with few cases reported in the literature. Here we discuss a 64-year-old woman with a history of colorectal adenocarcinoma presenting with a vulvar metastasis.

METHODS

Clinical information was gathered via review of the electronic medical record.

RESULTS

IHC is useful in diagnosis of unusual metastases. In this case, staining for CDx2, CK20, PAX8, and CK7 was helpful in distinguishing a gynecologic versus gastrointestinal primary.

CONCLUSION

Our case highlights the importance of an accurate and timely diagnosis of gynecologic metastases in patients with a history of colorectal cancer. Examiners should have a low threshold for biopsy and imaging when patients present with skin changes or vulvovaginal complaints. Appropriate treatment requires a multidisciplinary approach.