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Sonographic characteristics of linear nevus sebaceous sequence
A E Neis1, K L Johansen, R W Harms
1Mayo Clinic College of Medicine, Division of Maternal Fetal Medicine, Rochester, MN 55905, USA.
Summary
Congenital linear nevus sebaceous sequence can be identified prenatally via ultrasound. Associated findings like macrocephaly and polyhydramnios suggest this rare hamartomatous lesion.
Area of Science:
- Medical Imaging
- Prenatal Diagnosis
- Dermatology
Background:
- Linear nevus sebaceous is a congenital hamartoma typically diagnosed postnatally.
- It commonly affects the face and head, presenting as a distinctive skin lesion.
Observation:
- This report details a case where linear nevus sebaceous was suspected prenatally.
- Ultrasound examination at 30 weeks' gestation revealed findings suggestive of this condition.
Findings:
- Associated sonographic findings included macrocephaly and polyhydramnios.
- The presence of a midline soft tissue mass further supported the diagnosis.
Implications:
- These prenatal sonographic findings are highly indicative of congenital linear nevus sebaceous sequence.
- Early prenatal identification allows for timely counseling and planning for affected newborns.
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