Occassionally: Sebaceous cysts arise in the skin as blackheads which then have capsular expansion and the development of the classic subcutaneous sebaceous cyst. Lymph nodes are the immune glands always found in proximity to major blood vessels like axillary, jugular or femoral vein. If a sebaceous cyst becomes infected because there is always a small opening at the skin level, infection could node swelling
Answered 10/23/2017
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