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Breast Implant-Associated Anaplastic Large Cell Lymphoma: Updates in Diagnosis and Specimen Handling
Mario L Marques-Piubelli1, L Jeffrey Medeiros2, John Stewart3
1Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center.
Insights
Accurate pathologic staging is crucial for managing breast implant-associated anaplastic large-cell lymphoma (BIA-ALCL). Complete surgical removal with clear margins offers the best chance for a cure in BIA-ALCL patients.
Area of Science:
- Oncology
- Pathology
- Surgical Oncology
Background:
- Breast implant-associated anaplastic large-cell lymphoma (BIA-ALCL) is a rare malignancy.
- Diagnosis often relies on effusion analysis due to common presentation with fluid accumulation.
- Proper staging is critical for effective patient management and treatment planning.
Purpose of the Study:
- To outline the essential role of pathologic staging in BIA-ALCL.
- To detail diagnostic methods for BIA-ALCL.
- To emphasize the importance of surgical resection and margin assessment for curative intent.
Main Methods:
- Cytologic examination of effusions.
- Immunohistochemistry and flow cytometry for immunophenotyping.
- En bloc resection of tumor and involved capsule.
- Systematic pathologic staging and margin assessment.
Main Results:
- Cytology with immunophenotyping is essential for BIA-ALCL diagnosis.
- En bloc resection is the recommended surgical approach.
- Negative margins following resection correlate with a high likelihood of cure.
- Positive margins necessitate further multidisciplinary evaluation for adjuvant therapy.
Conclusions:
- Pathologic staging, including margin assessment, is fundamental for BIA-ALCL management.
- Complete surgical resection with clear margins is the primary goal for achieving a cure.
- Multidisciplinary assessment is required for cases with incomplete resection or positive margins.
Abstract:
Pathologic staging including assessment of margins is essential for the proper management of patients with breast implant-associated anaplastic large-cell lymphoma (BIA-ALCL). As most patients present with effusion, cytologic examination with immunohistochemistry and/or flow cytometry immunophenotyping are essential for diagnosis. Upon a diagnosis of BIA-ALCL, en bloc resection is recommended. When a tumor mass is not identified, a systematic approach to fixation and sampling of the capsule, followed by pathologic staging and assessment of margins, is essential. Cure is likely when lymphoma is contained within the en bloc resection and margins are negative. Incomplete resection or positive margins require a multidisciplinary team assessment for adjuvant therapy.
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