Skin lesion in axilla: An unusual presentation of invasive lobular carcinoma of breast

Abstract

Invasive lobular carcinoma (ILC) of breast is known to present with atypical clinical findings in the breast, making it difficult to diagnose. It is also known to have unusual sites of metastases arising de novo or in patients treated for known ILC. Skin lesion in axilla could be a cutaneous metastasis from ILC or ILC in ectopic breast tissue (EBT). We present two cases with skin lesion in axillas which after excision were surprisingly reported as ILC. On further investigations these were found to be primary in EBT. Though such cases are reported, carcinoma arising from EBT is a very rare presentation and one should be aware of this, when dealing with a skin lesion. Copyright 2012 BMJ Publishing Group. All rights reserved.