Association of persistent falcine sinus with different clinicoradiologic conditions: MR imaging and MR angiography

Area of Science:

• Pediatric Radiology
• Neuroimaging
• Developmental Biology

Background:

• Persistent falcine sinuses are rare venous anomalies.
• Their association with other congenital disorders is not well-established.

Purpose of the Study:

• To describe the clinicoradiologic spectrum of persistent falcine sinuses in pediatric patients.
• To investigate potential underlying causes and associated conditions.

Main Methods:

• Retrospective review of nine pediatric cases with persistent falcine sinuses.
• Magnetic resonance (MR) imaging and MR angiography were utilized.

Main Results:

• Persistent falcine sinus was associated with arteriovenous malformations (3 cases).
• Other associated conditions included absence of corpus callosum, Apert's syndrome, osteogenesis imperfecta, and Chiari II malformation (4 cases).
• In two cases, it was an incidental finding.

Conclusions:

• Persistent falcine sinus can occur in isolation or with various central nervous system and skeletal anomalies.
• Mesenchymal disorders are proposed as a primary cause for persistent falcine sinus.