In the surgeon's deposition it was stated that the posterior third of the left parietal bone
and the left half of the occipital bone had been shattered by a heavy blow from a blunt weapon.
Primary Ewing's sarcoma of the cranial bone usually involves the frontal and parietal bones
. The reported peak incidence is between 5 and 13 years of age (5).
Radiography of the skull revealed difuse thickening of the frontal and parietal bones
and markedly increased bone opacity (Figure 1b).
13156913.2.1001.5544) and was performed on 300 parietal bones
of the 150 cadaveric human skulls of both male and female Brazilian adults obtained from the Sao Paulo Federal University and Bahia's School of Medicine and Public Health.
Craniotomy was carried out on parietal bones
, by drilling round holes 2 mm in diameter, with coordinates: 2-2,5 mm posterior to the bregma and 2 mm lateral to the sagittal suture, and 10,5 mm posterior to the bregma and 1-1,5 mm lateral to the sagittal suture .
The pregnancy course had been uneventful until 32 weeks of gestational age when a routine ultrasound scan showed polyhydramnios, protrusion of the parietal bones
and predominantly mesoacromelic shortness of long bones.
The skull has two burr holes, one smaller, located at the level of the frontal bone, close to the coronal suture, and one larger, located posteriorly, with an extension at the level of both parietal bones
. Moreover, the first neurosurgical trepanation of the skull, performed for psychosurgical purposes, was carried out in 1 500 B.
The boy suffered scaphocephaly (from Greek skaphe meaning light boat or skiff), premature closure of sagittal suture, which causes both parietal bones
to be held together.
In the pre-parturition stage, the frontal and parietal bones
are almost fully differentiated; therefore, the frontoparietal fenestra is small and remains open.
Heckle S, Aschoff A & Kunze S (2002) in their study done on cavernoma of the skull observed that frontal, temporaland parietal bones
are the most common sites of cavernous haemangioma of skull in decreasing order.
A fifth contact (Bite E), administered while the bear and woman again faced one another, was catastrophic: it punctured and fractured her temporal and parietal bones
and depressed them into the cranial vault.
* Head-breadth: The maximum transverse diameter between two fixed points over the parietal bones
is measured by blunt end type spreading calliper.