Occult Primary Breast Carcinoma: A Rare Case Report with Review of Literature

Occult primary breast carcinoma presenting as axillary lymphadenopathy is a very rare entity. Owing to the absence of primary tumor, diagnosis and treatment of such cases is a real challenge for oncologists. The histopathological examination and immunohistochemistry evaluation of the tissue plays a salient role in diagnosing and typing of such tumor. Here, we are reporting a case of a 38-year-old woman with occult primary breast carcinoma, discovered after initially presenting with neurological symptoms. Immunohistochemistry showed that the biopsied lymph node was positive for GATA3. Suggesting breast as the site of primary tumor.