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Multiple cutaneous rhabdomyomas in a child.
Hiroshi Kawada1, Juri Kawada, Kunio Iwahara
1Department of Dermatology, Juntendo University School of Medicine 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan.
European Journal of Dermatology : EJD
|November 27, 2004
Summary
A rare case of congenital, multiple, cutaneous rhabdomyomas was observed in a 4-year-old boy. This finding represents a potentially unique instance of this condition in Japan.
Area of Science:
- Dermatology
- Pathology
- Pediatrics
Background:
- Rhabdomyomas are benign tumors of striated muscle.
- Cutaneous rhabdomyomas are exceptionally rare, with limited documented cases.
- Congenital presentation of multiple cutaneous rhabdomyomas is exceedingly uncommon.
Observation:
- A 4-year-old male presented with multiple congenital cutaneous rhabdomyomas.
- Surgical excision of the tumors allowed for detailed pathological examination.
- Histopathology revealed lobular dermal structures with characteristic tumor cells.
Findings:
- Tumor cells exhibited eosinophilic cytoplasm and peripherally located nuclei.
- Immunohistochemical staining confirmed positivity for myoglobin, a marker for muscle differentiation.
- The histological features were consistent with rhabdomyoma.
Implications:
- This case highlights the importance of considering rare diagnoses in pediatric dermatology.
- The findings contribute to the limited literature on extra-cardiac rhabdomyomas.
- This may be the first reported case of congenital, multiple, cutaneous rhabdomyomas in Japan, expanding geographical data on this rare entity.