An incidental persistent falcine sinus with dominant straight sinus and hypoplastic distal superior sagittal sinus.
An incidental persistent falcine sinus was detected in an otherwise normal brain on MRI in a 12-year-old girl who underwent imaging after clinical suspicion of acute disseminated encephalomyelitis. The falcine sinus was associated with a hypoplastic posterior third of the superior sagittal sinus and a dominant straight sinus. Generally, atresia or hypoplasia of the straight sinus is associated with a persistent falcine sinus in postnatal life; otherwise, the falcine sinus disappears before birth. We discuss the embryological basis for such an association in this case.
Manoj
Krishnan Sarojam
KS
Metroscans, Trivandrum, India.
Krishnamoorthy
Thamburaj
T
Thomas
Bejoy
B
Kapilamoorthy
Tirur Raman
TR
D002648:Child; D003392:Cranial Sinuses / Q000002:abnormalities* / Q000196:embryology; D005260:Female; D006801:Humans; D002538:Intracranial Arteriovenous Malformations / Q000175:diagnosis; D008279:Magnetic Resonance Imaging