Ptosis due to cavernous sinus syndrome as a rare presentation of advanced breast metastasis in a patient with delayed diagnosis

Complications of breast cancer metastasis may be the first manifestation of the disease. We report a rare case of left eye ptosis secondary to cavernous sinus syndrome in a 34-year-old lady due to refusal of proper medical treatment for metastatic breast cancer. The delay in seeking medical treatment was attributed to her use of Traditional Chinese Medicine (TCM).