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Related Experiment Videos

Merkel cell carcinoma: the clinical course.

D Mercer1, P Brander, K Liddell

  • 1Department of Plastic Surgery, St. Thomas's Hospital, London, UK.

Annals of Plastic Surgery
|August 1, 1990
PubMed
Summary
This summary is machine-generated.

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Merkel cell carcinoma, a rare neuroendocrine tumor, primarily affects women in their 60s, often presenting as a facial nodule. Survival rates are around 60% at three years, with some cases responding to surgery and radiotherapy.

Area of Science:

  • Dermatology
  • Oncology
  • Neuroendocrinology

Background:

  • Merkel cells, discovered in 1875, originate from neural crest cells and function as mechanoreceptors.
  • Malignant transformation of Merkel cells can lead to tumors with neurosecretory granules, characteristic of APUDomas.

Observation:

  • A literature search identified 121 cases of Merkel cell carcinoma.
  • The most common presentation is an erythematous nodule on the face or lower limb.
  • The condition predominantly affects women in their late 60s.

Findings:

  • Regional lymph node involvement occurred in approximately 50% of patients.
  • The three-year survival rate for Merkel cell carcinoma is around 60%.
  • Two unusual cases of metastasizing Merkel cell carcinoma in older women showed positive response to combined surgery and radiotherapy.

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Implications:

  • This study highlights the typical clinical presentation and prognostic factors of Merkel cell carcinoma.
  • The findings suggest that Merkel cell carcinoma, despite its rarity, warrants consideration in differential diagnoses for skin lesions.
  • The reported successful treatment outcomes in advanced cases underscore the potential benefit of multimodal therapeutic approaches.