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Nevus cell aggregates in the placenta. A histochemical and electron microscopic study
C Sotelo-Avila1, M Graham, D E Hanby
1Department of Pathology, Cardinal Glennon Children's Hospital, St. Louis, Missouri 63104.
American Journal of Clinical Pathology
|March 1, 1988
Summary
Histochemical and ultrastructural analysis revealed nevus cell aggregates in the placenta of a neonate with a giant pigmented nevus. Aberrant neural crest cell migration is favored as the cause of this placental lesion.
Area of Science:
- Reproductive biology
- Developmental biology
- Dermatopathology
Background:
- Giant pigmented nevi are rare congenital melanocytic tumors.
- Placental involvement by nevus cells is an uncommon finding.
- Understanding the origin of placental lesions is crucial for neonatal health.
Observation:
- Histochemical and ultrastructural examination of placental tissue.
- Analysis of nevus cell aggregates in a neonate with a giant pigmented nevus.
- Evaluation of cellular morphology and tissue architecture.
Findings:
- Presence of nevus cell aggregates within the placenta.
- Histochemical and ultrastructural features consistent with nevus cells.
- Distinguishing between aberrant neural crest cell migration and metastasis was challenging.
Implications:
- Suggests aberrant migration of neural crest elements as a plausible explanation.
- Provides insight into unusual placental pathology.
- Highlights the importance of comprehensive analysis in complex neonatal cases.