7) Two rare cases of falcine
tumors have been reported, in which the lesions contained both hyaline cartilage and bone, and were so termed as osteochondromas.
This in turn drained via falcine
veins into the large transverse and sigmoid sinuses.
3-cm tumor studding, small meningioma 19/M/66 Adenosquamous Multiple right No No carcinoma subdural occipital of tumor nodules gallbladder 20/F/64 Chronic Multiple cranial and Yes N/A myelomono- spinal cord cytic subdural chloromas, leukemia with massive falcine
chloroma 21/F/39 Breast Multiple subdural (3) Yes No carcinoma and epidural (3) 0.
7,24,25) Occipital encephaloceles are frequently associated with abnormalities of the dural venous sinuses, including absence of the straight sinus and a persistent falcine
3-5) VGAMs drain via the straight sinus to the torcula but, in the absence of the sinus, drainage is via a persistent falcine
sinus to the post third of the superior sagittal sinus.