Is apocrine metaplasia (a type of epithelial metaplasia) cancerous?

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Last updated: April 16, 2025View editorial policy

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From the Research

Apocrine metaplasia is not cancerous. It is a benign (non-cancerous) condition where normal breast tissue cells change into apocrine cells, which are larger cells with granular cytoplasm. This condition is commonly found during breast biopsies and is considered a normal variant or physiological change in breast tissue. Apocrine metaplasia is often associated with fibrocystic breast changes and typically doesn't require treatment.

Key Points

  • Apocrine metaplasia is a benign condition, as supported by a study published in 2022 1
  • Having apocrine metaplasia doesn't increase your risk for developing breast cancer in the future
  • If apocrine metaplasia is found during a breast biopsy, no further intervention is typically needed beyond routine breast cancer screening appropriate for your age and risk factors
  • The exact cause of apocrine metaplasia isn't fully understood, but it may be related to hormonal influences on breast tissue, as suggested by a study published in 2017 2

Diagnosis and Treatment

  • Apocrine metaplasia can be diagnosed through breast biopsy, with imaging features that may include microlobulated or lobulated masses, or heterogeneous calcification clusters 3
  • A study published in 2021 4 reported a challenging case of biopsy-proven cystic apocrine metaplasia that presented with initially suspicious imaging findings concerning for malignancy
  • Understanding the histological basis of apocrine metaplasia and correlating it with recognized imaging features may increase diagnostic accuracy and reduce tissue resampling due to discordant histopathological results

Conclusion Not Applicable - Outcome Based Answer Only

Based on the most recent and highest quality study available, apocrine metaplasia is not cancerous and does not require treatment beyond routine breast cancer screening 1.

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

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