Axillary breast is one of the varieties of polymastia which is characterized by the presence of more than 2 breasts. It may cause symptoms during pregnancy, lactation, or in the premenopausal period. Unless there are obvious symptoms of lactation or the assistance of further imaging studies such as mammography and breast ultrasound, the diagnosis is often confused with subcutaneous lipoma. The incidence of axillary breast cancer is low but it should be investigated and treated properly in view of another breast cancer in the embryonic milk-line. In this paper we reviewed 4 cases of axillary breast cancer and documented some articles regarding aberrant breast and carcinoma arising from it. It is suggested that subcutaneous nodules of uncertain origin around the periphery of the breast should be viewed with suspicion and treated properly.
Adenocarcinoma, Mucinous/pathology* ; Adenocarcinoma, Mucinous/complications ; Adult ; Aged ; Breast/abnormalities* ; Breast Neoplasms/pathology* ; Breast Neoplasms/complications ; Carcinoma, Infiltrating Duct/pathology* ; Carcinoma, Infiltrating Duct/complications ; Case Report ; Female ; Human ; Middle Age

The purpose of this study is to determine the characteristic clinical features, radiologic findings, and precipitating and prognostic factors in the patients with breast cancer and with 5-Fluorouracil (5-FU)-induced leukoencephalopathy. We reviewed the medical records of six breast cancer patients who developed leukoencephalopathy after chemotherapy which included 5-FU and also evaluated thorough neurological examinations including mini-mental status examination, cerebrospinal fluid studies, brain images and brain biopsies. Six patients exhibited slowly progressing neurologic symptoms characterized by the impairment of cognitive function, abulia, ataxic gait, and/or akinetic mutism. None of the patients had any specific causes or etiologic factors for leukoencephalopathy. Brain MRI in all patients showed diffuse periventricular white matter changes in the T2-weighted MR image. Brain biopsy in Patient 1 showed fragmented axonal fiber and minimally deprived myelination with many scattered macrophages. Five patients who treated with steroids at the onset of neurological symptoms showed clinical improvement, regardless of their age, sex, the pathology and stage of breast cancer, or the total dosage of chemotherapeutic agents. We conclude that leukoencephalopathy in these cases could be attributable to 5-FU neurotoxicity and suggest that the administration of steroids might be the treatment of choice.
Adenocarcinoma, Mucinous/complications/drug therapy ; Adult ; Anti-Inflammatory Agents, Steroidal/therapeutic use ; Antineoplastic Agents/adverse effects/therapeutic use ; Brain/*drug effects/metabolism/radiography ; Breast Neoplasms/*complications/drug therapy ; Carcinoma, Infiltrating Duct/*complications/drug therapy ; Cyclophosphamide/adverse effects/therapeutic use ; Epirubicin/adverse effects/therapeutic use ; Female ; Fluorouracil/*adverse effects/analogs & derivatives/therapeutic use ; Glucocorticoids, Synthetic/therapeutic use ; Human ; Magnetic Resonance Imaging ; Methylprednisolone/therapeutic use ; Middle Age ; Nervous System Diseases/chemically induced/drug therapy/metabolism/radiography ; Prednisolone/therapeutic use