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Mummified ossified melanocytic naevus
1Department of Dermatology, Hospital Ed.-Herriot 69437 Lyon Cedex 03, France. kanitak@lyon151.inserm.fr
European Journal of Dermatology : EJD
|September 12, 2000
Abstract:
Ossification rarely occurs within melanocytic naevi. As far as we know, mummification (presence of shadow cells) has never been described within these lesions. We report herein the case of a benign naevus associating ossification and mummification; this case suggests that, similarly to pilomatricomas, osteoma formation within melanocytic naevi may develop as a result of mummification.
Insights
Ossification and mummification are rare in melanocytic nevi. This case suggests mummification may lead to bone formation in nevi, similar to pilomatricomas.
Area of Science:
- Dermatopathology
- Histopathology
- Benign Neoplasms
Background:
- Melanocytic nevi are common benign skin tumors.
- Ossification within melanocytic nevi is an exceptionally rare finding.
- Mummification, characterized by shadow cells, has not been previously reported in melanocytic nevi.
Observation:
- A case of a benign melanocytic nevus exhibiting both ossification and mummification is presented.
- Histopathological examination revealed the presence of shadow cells and bone formation within the nevus.
Findings:
- The co-occurrence of ossification and mummification in a melanocytic nevus is described for the first time.
- This finding suggests a potential pathway for osteoma formation within melanocytic nevi.
Implications:
- The study proposes that mummification may be an initiating factor for ossification in melanocytic nevi.
- This observation may provide insights into the pathogenesis of ossifying tumors, drawing parallels with pilomatricomas.