Related Experiment Video
Updated: May 27, 2026

13:45
Merkel Cell Polyomavirus Infection and Detection
Published on: February 7, 2019
Metachronous merkel cell carcinoma: a case report
Jondavid Pollock1, Thomas Caranosos, E P Polack
1The Schiffler Cancer Center, Wheeling Hospital, Wheeling, W. Va.
Case Reports in Dermatology
|November 24, 2011
Summary
Merkel cell carcinoma (MCC) can present as multiple, separate lesions over time. This case highlights an unusual MCC presentation not explained by a field effect, suggesting other mechanisms for recurrence.
Area of Science:
- Dermatology
- Oncology
- Pathology
Background:
- Merkel cell carcinoma (MCC) is a rare, aggressive skin cancer.
- MCC typically presents as a single lesion with potential lymph node metastasis.
- Multiple MCC lesions are often attributed to a 'field effect'.
Observation:
- This report details a patient with metachronous MCC lesions.
- The lesions appeared years apart and in distinct locations.
- The tumor distribution could not be explained by a field effect.
Findings:
- The patient's MCC recurrence pattern was atypical.
- The case challenges the universal applicability of the field effect theory in MCC.
- Alternative explanations for metachronous MCC require consideration.
Implications:
- This case expands the understanding of MCC behavior.
- It suggests a need for further research into MCC pathogenesis.
- Clinical management strategies for MCC may need re-evaluation.