(3) In the cranium, widening of the diploic
space is demonstrated with a heterogeneous appearance.
The relatively frequent appearance of PPT in adolescents could be related to the continued growth of the frontal bone and the increased diploic
vein flow in this period (5,9).
Diffuse osteopenia, prominent vascular markings in skull, thin and large calvarium with shallow diploic
space, multiple wormian bones, small mandible with infantile obtuse angle and short ascending rami, hypoplastic facial bones, open cranial fontanelles, thin short clavicles, dwarfism, abnormally gracile ribs involving the posterior segments of the upper ribs, slender long bones, kyphosis, coxa valga, and progressive acroosteolysis of the terminal phalanges were the major roentgen findings previously reported.
On magnetic resonance imaging, the lesion was found to be sinus pericranii--a rare disorder described in the literature as being "characterized by a congenital or acquired epicranial blood-filled nodule of the scalp that is in communication with an intracranial dural sinus through dilated diploic
veins of the skull" (J.
Additionally, these lesions were observed for signs of healing, recorded as fully healed (smoothed bony surface without remaining pits and remodeled diploic
expansion), some healing (some pits visible, diploie expanded), or active (no evidence for remodeling).
The study included 19 cases of sclerotic mastoid, 7 cases of pneumatic mastoid and 4 cases of diploic
RADIOLOGIC DIAGNOSIS: There is a single lytic lesion in the right temporoparietal region centered in the diploic
space, causing mass effect without invasion of the right temporal lobe.
Since the frontal bone is diploic
with a marrow cavity, it is susceptible to osteomyelitis.
mastoid was seen in 13.33% cases in Group A and 10% cases in Group B respectively.
(6) This dynamic remodeling enlarges the diploic
Like mastoid, petrous bone is of three types: pneumatised, diploic
(4,5) Thrombophlebitis may take place in any of the diploic
veins in and around the temporal bone.