Factors Associated With Metastasis of Eccrine Porocarcinoma: A Retrospective Cohort Analysis of National Cancer Databases
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View abstract on PubMed
Summary
This summary is machine-generated.Sentinel lymph node biopsy is recommended for eccrine porocarcinoma tumors larger than 17 mm or with lymphovascular invasion, as these factors increase metastasis risk.
Area Of Science
- Oncology
- Dermatology
- Surgical Pathology
Background
- Eccrine porocarcinoma is a rare skin cancer with limited data on metastasis predictors.
- The role of sentinel lymph node biopsy (SLNB) in managing this malignancy is not well-established.
Purpose Of The Study
- To identify prognostic factors influencing metastasis in eccrine porocarcinoma.
- To guide the clinical decision-making process for SLNB in patients with this rare cancer.
Main Methods
- Retrospective analysis of large national cancer databases (National Cancer Database, SEER).
- Multivariable logistic regression to assess tumor size and lymphovascular invasion (LVI) as predictors of metastasis.
- Calculation of cumulative probability of sentinel node metastasis based on tumor size.
Main Results
- Analysis of 1,351 patients revealed a 5.6% lymph node positivity and 1.1% distant metastasis rate.
- Tumors exceeding 17 mm in size were associated with a 6.8% risk of occult lymph node metastasis via SLNB.
- Among analyzed tumors, 40% with LVI had already metastasized at diagnosis.
Conclusions
- Tumor size and LVI are significant prognostic factors for eccrine porocarcinoma metastasis.
- SLNB should be strongly considered for tumors >17 mm or those exhibiting LVI to assess nodal involvement.
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