Merkel cell carcinoma in situ: A systematic review of prognosis and management

Autor: Kelvin Truong, Simone M Goldinger, Shaun Chou, Julie R Howle, Michael J Veness, Pablo Fernandez‐Peñas, Alexander H R Varey
Rok vydání: 2021
Předmět:
Zdroj: Australasian Journal of Dermatology. 63
ISSN: 1440-0960
0004-8380
DOI: 10.1111/ajd.13758
Popis: Merkel cell carcinoma (MCC) is a rare primary cutaneous neuroendocrine tumour. While dermally invasive MCC is known to have a five-year survival of only 30-40%, the prognosis and management of MCC in situ (MCCis) is not widely reported.We present a systematic review to elucidate the prognosis and management of MCCis.We performed a systematic review, searching three databases to 01 June 2021. Case reports, cohort studies, clinical trials and literature reviews were considered for inclusion.We identified 26 cases of MCCis published in the literature with a median age of 74 years and involving 19 males and 7 females. Most cases were on the face and neck (n = 17), followed by upper limb (n = 8) and lower limb (n = 1). Sentinel lymph node biopsy was performed in three patients, and all were negative. One subject underwent adjuvant radiotherapy. No MCCis-associated deaths were reported.This review suggests that MCCis has an excellent prognosis with minimal, if any, risk of mortality and a very low risk of dermal invasion and recurrence when treated with wide local excision alone. Sentinel lymph node biopsy is unlikely to be useful for MCCis.
Databáze: OpenAIRE
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