Inguinal lymph node metastasis in treated breast cancer: an extremely rare presentation and review of literature

Metastasis to inguinal lymph nodes from breast cancer is extremely rare and only a handful of cases have been reported in the literature to date. We report a case of a postmenopausal female patient who was a treated case of right breast cancer and developed inguinal metastases after 9 months. An excisional biopsy of the lesion confirmed the diagnosis. A positron emission tomography–CT scan revealed retropectoral and pelvic lymphadenopathy. The patient was treated with palliative radiotherapy to the inguinal and pelvic regions followed by palliative chemotherapy. The patient survived for 4 months after the detection of inguinal metastasis.