No abstract available.
Mastoid* ; Transverse Sinuses*

Congenital sinuses of the lips are uncommon congenital malformations. Congenital lateral upper lip sinuses or pits are more rare than those that occur in the midline, and only 10 cases have been reported previously. Congenital sinus of the upper lip usually present as a pit, which is the opening of a blind sinus penetrating the orbicularis oris muscle and ending just beneath the mucosal surface of the lip, without communication with oral cavity. Most sinus tracts are lined by stratified squamous epithelium, and mucous drainage or secretion is the most common symptom. In the literature, there are several theories of pathogenesis in which the invagination theory recieves the most attention but its etiology remains controversial. Surgical resection is the tratment of choice and an elliptical excision gives the most acceptable aesthetic result. The authors present 2 rare cases of congenital lateral upper lip sinus with pits found below right vermilion border, and just above the vermilion border on the left ridge of the philtrum.
Drainage ; Epithelium ; Lip* ; Mouth ; Transverse Sinuses*

The anatomical pattern of the dural venous sinuses in the vicinity of their confluence was examinaed in 54 cases of human fetus. The classification introduced here by author was based upon the presence or absence of bifurcation of the superior sagittal and straight sinuses without regard to their sizes or to those of the transverse sinuses. Four types of pattern occurred;common pool type, double bifurcation type, straight sinus bifurcation type and superior sagittal sinus bifurcation type. In a total of 54 anatomical dissections, 28 cases(51.8%) were of the first type(common pool), 5 cases(9.3%) of the second(double bifurcation), 6 cases(11.1%) of the third(straight sinus bifurcation) and 15 cases(27.8%) of the fourth(superior sagittal sinus bifurcation) .
Classification ; Fetus ; Humans ; Superior Sagittal Sinus ; Transverse Sinuses

Tinnitus is a bothersome symptom, and definite treatment of tinnitus is unclear. However, somatostatic tinnitus caused by vascular bruit is sometimes treatable. Sigmoid sinus diverticulum and/or dehiscence (SSDD) is common vascular abnormality, which is also known to cause pulsatile tinnitus. An endovascular embolization that can treat SSDD has been reported already, however, an external approach has not been reported yet in Korea. We experienced a 34-year-old woman who had complained of pulsatile tinnitus by SSDD and she was successfully treated with an external apporoach. So we report this case with a review of literatures.
Adult ; Colon, Sigmoid* ; Diverticulum* ; Female ; Humans ; Korea ; Tinnitus* ; Transverse Sinuses

BACKGROUNDDuring craniotomies using the transpetrosal-presigmoid approach, exposure of the sigmoid sinus remains an essential but hazardous step. In such procedures, accurate localization of the anterosuperior point of the transverse-sigmoid sinus junction (ASTS) is very important for reducing surgical morbidity. This study aimed to create an accurate and practical method for identifying the ASTS.

METHODSOn the lateral surfaces of 40 adult skulls (19 male skulls and 21 female skulls), a rectangular coordinate system was defined to measure the x and y coordinates of two points: the ASTS and the squamosal-parietomastoid suture junction (SP). With the coordinate system, the distribution characteristics of the ASTS were statistically analyzed and the differences between the ASTS and SP were investigated.

RESULTSFor ASTS-x, significant differences were found in different sides (P = 0.020); the ASTS-x in male skulls was significantly higher on the right side (P = 0.017); there was no significant difference between the sides in female skulls. There were no significant differences in gender or interaction of gender and side for ASTS-x, and for ASTS-y, there were no significant differences in side, gender, or interaction of gender and side. For both sides combined, the mean ASTS-x was significantly higher than the mean SP-x (P = 0.003) and the mean ASTS-y was significantly higher than the mean SP-y (P = 0.011).

CONCLUSIONSThis reference coordinate system may be an accurate and practical method for identifying the ASTS during presigmoid craniotomy. The SP might be difficult to find during presigmoid craniotomy and, therefore, it is not always a reliable landmark for defining the ASTS.

Adult ; Cranial Sinuses ; anatomy & histology ; Craniotomy ; Female ; Humans ; Male ; Middle Aged ; Skull ; anatomy & histology ; Transverse Sinuses ; anatomy & histology

PURPOSE: Many techniques have been described for achieving vertical augmentation of the maxillary sinus. The aim of this study is to evaluate the effect of low-intensity pulsed ultrasound (LIPUS) to enhance bone regeneration after sinus floor elevation. METHODS: The sinus lifting technique was performed through a lateral approach on 8 different sites of 5 patients (3 males and 2 females) and their mean age was 45.7 years old. The sites were randomly assigned to the control or test groups. The control group had 4 sites that received lateral sinus lifting procedure only, while the test group had 4 sites that received LIPUS application after the lateral sinus lifting procedure. 24-32 weeks (an average of 29 weeks) postoperatively, new bone formation in the augmented sinus sites was evaluated through histologic and histomorphometric analyses of the biopsy specimens obtained during implant placement. RESULTS: In the test group, the mean percentage of newly formed bone was 19.0+/-2.8%. In the control group, the mean percentage of newly formed bone was 15.2+/-3.1%. The percentage of newly formed bone was approximately 4% higher in those cases where the sinus was treated by LIPUS than the percentage in those cases where it was not used. The difference was statistically significant. CONCLUSIONS: Within the scope of this study, low-intensity pulsed ultrasound application after sinus lifting appeared to have a significant effect on the development of new bone formation.
Biopsy ; Bone Regeneration ; Floors and Floorcoverings ; Humans ; Lifting ; Male ; Maxillary Sinus ; Osteogenesis ; Transverse Sinuses

In the past the patients with fracture on the occipital bone involved the lateral sinus and/or the foramen magnum, were treated with the early exploratory burr hole trephination regardless of mental state. The 64 cases occipital bone fracture were evaluated used the computed tomography of the brain scan. The fracture lines involved both the transeverse sinus and the foramen magnum were 59.4%, only the transeverse sinus were 29.7% and only the foramen magnum were 10.9%. The findings of the computed tomography of the brain scan were normal 42 cases, brain edema 13 cases. The 5 cases had large hematoma on the computed tomography of the brain scan performed emergency operation. The other 59 cases were treated with only close observation and conservative treatment. The mortality rate was 20% in operative treatment and 8.5% in conservative treatment. So we concluded that the patients with significant fracture on the occipital bone but had no surgical indication on the computed tomography of the brain scan might be treated with close observation & conservative treatment and it would not be necessary to perform the exploratory craniotomy as was done in the past.
Brain ; Brain Edema ; Craniotomy ; Emergencies ; Foramen Magnum ; Hematoma ; Humans ; Mortality ; Occipital Bone* ; Transverse Sinuses ; Trephining

No abstract available.
Brain ; Brain Abscess ; Lateral Sinus Thrombosis ; Otitis ; Otitis Media ; Petrositis ; Transverse Sinuses

No abstract available.
Brain ; Brain Abscess ; Lateral Sinus Thrombosis ; Otitis ; Otitis Media ; Petrositis ; Transverse Sinuses

Treatment of refractory idiopathic intracranial hypertension (IIH) is a challenging problem. We reported a refractory IIH patient who manifested with typical intracranial hypertensive symptoms successfully treated with endovascular stent implantation. Pre-operative cerebrospinal fluid (CSF) opening pressure is 36 cmH2O. Cerebral angiography demonstrated a stenotic lesion located at the right transverse sinus (TS). The stenotic TS returned to its normal caliber and the pressure gradient deceased from 36 mmHg to 4 mmHg after the stent placement. The intracranial hypertensive symptoms resolved and one month later, the CSF opening pressure decreased to 14 cmH2O.
Cerebral Angiography ; Female ; Humans ; Middle Aged ; Pseudotumor Cerebri ; diagnostic imaging ; surgery ; Transverse Sinuses ; diagnostic imaging ; surgery