Symptomatic Sinus Pericranii with Adult Onset Headache: A Case Report with Pathologic Perspective

Sinus pericranii (SP) is a rare vascular anomaly of the scalp that consists of an abnormal pericranial venous channel connected to adjacent dural venous sinuses. Most SP are asymptomatic and are found in the pediatric age group. We aim to report a case of symptomatic SP in adult and describe the clinical, radiological, and pathohistological findings to help understand and differentiate this lesion from other scalp lesions. A 40-year-old man with a scalp mass was admitted to our hospital complaining of headache. The lesion enlarged when the patient was in a recumbent position or during Valsalva maneuver. The radiologic imaging suggested its diagnosis as an accessory type of SP with bone erosion. Surgical resection and cranioplasty were successfully performed, and the related headache also gradually subsided. At the 3-year follow-up, there was no recurrence on magnetic resonance imaging.

Sinus Pericranii: Case Report / 대한뇌혈관외과학회지

OBJECTIVE: Sinus pericranii (SP) is a rare vascular malformation characterized by abnormal communication between the extracranial and intracranial venous systems, usually involving the superior sagittal sinus (SSS) and occasionally, the transverse sinus. CASE REPORT: A 28-year-old man was presented with a round, fluctuant, nonpulsatile scalp mass in the frontal area near the midline, the size of which changed, depending on his head position. Magnetic resonance imaging showed an extracranial vein extending through a bony defect in the vertex of the skull and draining into the superior portion of the sagittal sinus. RESULTS: The lesion was completely removed by surgery. The presence of vascular endothelium in the pathologic specimen suggests a congenital or spontaneous origin. CONCLUSION: SP is a rare vascular malformation that requires surgical or endovascular treatment for the prevention of life-threatening complications.

Sinus Pericranii: A Case Report and the Literature Review / 대한뇌혈관외과학회지

Sinus pericranii is a rare vascular anomaly that's characterized by an extracranial vascular mass with anastomotic connections between the intracranial and extracranial systems via the diploic veins of the skull. Preoperative evaluations for making the diagnosis are important to help prevent unexpected intraoperative bleeding. We report here on a case of surgically treated sinus pericranii in a 20-year-old female following minor head trauma. The clinical manifestations, pathogenesis and managements are discussed, and we also review the relevant literature.

A Case of Parital Sinus Pericranii

Sinus pericranii is a rare vascular anomaly which is defined as a group of abnormal communications between the extracranial and intracranial venous systems, usually involving the superior sagittal sinus. A case of parietal sinus pericranii is presented which was developed spontaneously. This 33-year-old woman presented with a soft fluctuant mass in the right parietal region adjacent to the midline. She complained of headache and dizziness. The preoperative radiologic findings of simple skull, bone scan, computed tomography and angiography are presened. The presence of vascular endothelium in the pathologic examination suggested a congenital origin. The lesion, pericranial blood sinus was removed completely and then mutiple, small vascular connections through the underlying skull were obliterated by air-powered drilling.

Two Cases of Sinus Pericranii

The "sinus pericranii" is a rare vascular anomaly involving an abnormal communication between extracranial and intracranial venous system, which usually involves the superior sagittal sinus, sometimes the transverse sinus. It is found beneath or in the periosteum of the cranial vault and is connected with an intracranial sinus through anomalous diploic veins of congenital or acquired origin. It is benign scalp mass, and should be differentiated from vascular anomalies of the scalp and cystic masses of the scalp communication with the cerebrospinal space. The authors present 2 cases of sinus pericranii which was spontaneously developed without any history if head injury. The lesion was found to be changed in it's volume according to patient's head position. Clinical characteristics of sinus pericranii is discussed.