Further, in rarest of rare cases Pneumocephalus
can develop after epidural anaesthesia which has rarely been reported.
Initial multi-slice computed tomography (MSCT) performed at another medical institution showed penetrating wound of the right orbital roof without affection of the right bulbus, and endocranial impressed bone fragments into the right frontal brain lobe with pneumocephalus
and minimum hemorrhage (Figs.
Two-thirds (67%) had a normal CT scan, 11% had contusions, 9% had subdural hemorrhage, 5% had pneumocephalus
, 5% had cranial bone fractures, 2% had an extradural hemorrhage, and 1% had a subarachnoid hemorrhage.
 Other causes of headache in the postpartum period include non-specific headache, migraine, hypertension, pneumocephalus
, infection including sinusitis and meningitis, cortical vein thrombosis and intracerebral pathology.
Complex signal abnormality noted at the surgical bed at bifrontal (A) and (B), region most likely representing subacute blood, some purulent fluid, pneumocephalus
and edema with possible communication with the left lateral ventricle (C) and (D).
Physical and radiological findings Findings n % Skull fractures Linear fractures 25 73.5 Occipital bone 7 28.0 Temporal bone 6 24.0 Frontal bone 9 36.0 Parietal bone 3 12.0 Depressed fractures 18 52.9 Frontal bone 8 44.4 Parietal bone 4 22.2 Occipital bone 6 33.3 Basis Cranii Fractures 17 50.0 Frontobasal 7 41.2 Temporobasal 6 35.3 Occipitobasal 4 23.5 Intracranial lesion Extradural hematoma 13 38.2 Subarachnoid hemorrhage 6 17.6 Subdural hematoma 4 11.8 Cerebral edema 8 23.5 Diffuse axonal injury 2 5.9 Pneumocephalus
13 38.2 Additional lesions Subgaleal hematoma 14 41.2 Unilateral/bilateral periorbital hematoma 7 20.6 Otorrhea 3 8.8 Otorrhagia 1 2.9 Rhinorrhea 1 2.9 Rhinorrhagia 4 11.8 Superficial scalp maceration 9 26.5 Figure 1.
Associated with Pneumosinus Dilatans.
Complications of surgery included recurrent CSF leak in 6 (10%) patients, 4 (6.67%) patients had meningitis, 10 (16.67%) patients developed pneumocephalus
while 06 (10%) patients were complaining of loss of smell after surgery.
However, CT and MRI scans revealed to the patient's medical team he only had a large, empty void called pneumocephalus
, where the right frontal lobe of his brain should have been.
In a recent emergency department retrospective study, pneumocephalus
from introduction of air into venous circulation appears in one in 3000 noncontrast head CTs .
Retained orbital dagger fragments are rare [3-11]; we present a case in which an unnoticed dagger fragment, only detected byimage tests, caused eyeball perforation and orbital fracture with pneumocephalus
. Transorbital penetrating brain injury with open globe is an unusual occurrence, representing about 0.4% of all head injuries .