Rahul priydarss
The Tail of Spence is an extension of breast tissue that projects into the armpit (axilla). It’s a normal anatomical feature, but often overlooked during breast exams.
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It was first described by Scottish surgeon James Spence, who noticed this axillary extension of breast tissue in the 19th century.
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The tail runs from the upper outer quadrant of the breast into the underarm area, making it a natural continuation of the mammary gland.
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Doctors always check the Tail of Spence during breast exams, as lumps or abnormalities can appear there before they are detected in the main breast tissue.
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Since most breast cancers occur in the upper outer quadrant, the Tail of Spence is a critical zone for mammograms and clinical examinations.
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Sometimes, the Tail of Spence may look like armpit fat or swelling, but it’s actually normal glandular tissue.
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Like the rest of the breast, the Tail of Spence is sensitive to hormonal changes during menstrual cycles, pregnancy, or menopause.
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Benign conditions like fibroadenomas, cysts, or lipomas may also develop in the Tail of Spence, making regular self-exams important.
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During breast surgeries (lumpectomy, mastectomy, or cosmetic procedures), surgeons carefully assess and sometimes remove tissue from the Tail of Spence to ensure complete treatment.
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Many women aren’t aware of the Tail of Spence, yet it plays a vital role in early detection of breast cancer.