Acral
metastasis to the
finger is a very rare phenomenon. We
report herein a case of cutaneous acrometastasis to the right 5th
finger tip in a 36-year-old
woman with metastatic
breast cancer. The
patient underwent a right
modified radical mastectomy for T3N3 invasive
ductal carcinoma and received
adjuvant chemotherapy and
radiotherapy. After 2 years, she developed
metastasis to the
brain,
bones, and
lungs. She was found to have a growing tender mass on the tip of right 5th
finger. A well-demarcated, soft
tissue mass was identified on sonography. Under the clinical impression of a possible benign process, the nodule was surgically removed. The pathologic finding was consistent with metastatic
breast cancer. Immunohistochemical
staining for
estrogen receptor,
progesterone receptor, and HER2 were all negative, as in the primary
tumor.
Radiation was given to the
finger tip and systemic
chemotherapy with
capecitabine was tried for systemic metastatic
disease.