Melanoma With Rhabdomyosarcomatous Differentiation

Author:

Shenjere Patrick1,Fisher Cyril2,Rajab Ramzi3,Patnaik Lipsta4,Hazell Steve2,Thway Khin2

Affiliation:

1. Department of Histopathology, The Christie Hospital, Manchester, UK

2. Department of Histopathology, Royal Marsden Hospital, London, UK

3. Department of Cellular Pathology, St George’s Hospital, London, UK

4. Department of Pathology, Blackpool Teaching Hospitals NHS Foundation Trust, Blackpool, UK

Abstract

We describe 2 new cases of malignant melanoma with divergent rhabdomyoblastic differentiation occurring in adult patients. The patients were women aged 67 and 51 years with primary cutaneous and uterine cervical melanoma, respectively. Rhabdomyoblastic differentiation in melanoma is very rare in adult patients, and to our knowledge, only 7 such cases have been described in the world literature, of which only 4 have conclusive documentation of the presence of rhabdomyoblastic differentiation. We present the fifth and sixth cases of adult melanomas with conclusive divergent rhabdomyoblastic differentiation, including the first noncutaneous (cervical) case; we also review the literature and highlight the potential for underrecognition of this phenomenon.

Publisher

SAGE Publications

Subject

Pathology and Forensic Medicine,Surgery,Anatomy

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