Paranasal sinuses are paired cavities within the skull, which develop by evagination into spongy bone between external and internal plates of cranial facial bones. Thus, each sinus is lined respiratory epithelium has direct or indirect communication to nasal cavity. The purpose this chapter present an anatomical reference guide paranasal in domestic animals, including large small ruminants (cat...

inverted papillomas of the nose and paranasal sinuses are uncommon neoplasms, characterized by their tendency to occur and by their association with malignancy. in the past decade there has been a trend toward the use of endoscopic surgical techniques in the management of these tumors. this article presents the results of a prospective study of24 patients with inverted papilloma resected by the...

BACKGROUND Pseudomeningoceles are a rare complication after spinal surgery, and studies on these complex formations are few. METHODS Between October 2000 and March 2008, 11 patients who developed symptomatic pseudomeningoceles after spinal surgery were recruited. In this retrospective study, we reported our experiences in the management of these complex, symptomatic pseudomeningoceles after s...

Dural metastases have traditionally been considered a rare complication of prostate cancer; various case reports and autopsy series from the past have shown rates between 1 and 9%. Recent data from our advanced prostate cancer autopsy series, however, demonstrate a rate of dural lesions around 25%, suggesting that such complications may be more prevalent than previously reported. A case of pros...

PURPOSE In this work, we propose an in situ precise electrospinning of medical glue fibers onto dural wound for improving sealing capability, avoiding tissue adhesion, and saving time in dural repair. METHODS N-octyl-2-cyanoacrylate, a commercial tissue adhesive (medical glue), can be electrospun into ultrathin fibrous film with precise and homogeneous deposition by a gas-assisted electrospin...

Aneurysm of the vein of Galen in the fetus is a rare malformation that has been described in a small number of case reports. Thrombosis of aneurysm of the vein of Galen is a rare occurrence reported in postnatal cases. We report a case of thrombosis of vein of Galen aneurysm occurring in a fetus of 21 weeks' gestation. The fetus showed an echogenic mass posterior and superior to the thalamus. I...

PURPOSE Postdural puncture headache (PDPH) is an iatrogenic complication of neuraxial blockade. We systematically reviewed the literature on parturients to determine the frequency, onset, and duration of PDPH. METHODS Citations on PDPH in the obstetrical population were identified by computerized searches, citation review, and hand searches of abstracts and conference proceedings. Citations w...

Dural repair using chemically treated cadaveric dura mater often results in atrophic and fragile change of the substitute as well as adhesion between the dura mater and brain surface at reoperation. Creutz-feldt-Jakob disease has occurred after repair using cadaveric dura mater. Expanded polytetrafluoroethylene (EPTFE) surgical sheet was used for dural repair in 34 patients. Suturing of EPTFE w...

Cavernous hemangiomas involving the dura are relatively uncommon lesions . We report a case of a cavernous hemangioma with features of sinus pericranii with venous lakes that involved the dura as well as calvarium. Associated with it were radiologic bone changes atypical for hemangioma. In presenting our case, we correlate the computed tomographic (CT) appearance with surgical and conventional ...