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Intramammary melanoma micrometastasis within a silicone-implanted breast
Anna Payne1, Ted Welman2, Matthew Stodell2
1Department of Plastic and Reconstructive Surgery, The Royal London Hospital, Barts Health NHS Trust, London, UK anna.payne@doctors.org.uk.
BMJ Case Reports
|July 3, 2021
Summary
Sentinel lymph nodes in breast cancer patients with silicone implants may be found in unusual locations, such as the breast tissue itself. Preoperative imaging is crucial for accurate identification, especially with silicone lymphadenopathy.
Area of Science:
- Oncology
- Plastic Surgery
- Pathology
Background:
- Sentinel lymph node biopsy is a standard procedure for melanoma staging.
- Silicone breast implants are common, and their potential impact on lymphatic drainage is an area of ongoing research.
Observation:
- A 53-year-old woman with silicone breast implants presented for melanoma excision and sentinel lymph node biopsy.
- Sentinel lymph nodes were unexpectedly located within the breast parenchyma, adjacent to the implant capsule.
- Histology confirmed melanoma metastasis and silicone lymphadenopathy in the sentinel nodes.
Findings:
- Sentinel lymph nodes can reside in extranodal locations, deviating from typical lymphatic basins.
- Subclinical breast implant rupture may contribute to the development of silicone lymphadenopathy.
- Accurate preoperative lymphoscintigraphy is essential for identifying non-standard sentinel lymph node sites.
Implications:
- This case underscores the need for comprehensive preoperative imaging in patients with breast implants undergoing sentinel lymph node biopsy.
- Understanding alternative sentinel lymph node locations improves staging accuracy and treatment planning for melanoma.
- Further investigation into the relationship between silicone implants, subclinical rupture, and lymphadenopathy is warranted.
