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Open Access Original Article Issue
Prolactinoma coexisting with cerebrospinal fluid rhinorrhea and cavernous internal carotid aneurysm: Case report and literature review
Brain Science Advances 2016, 2 (4): 231-235
Published: 01 December 2016
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Pituitary adenoma coexisting with cerebrospinal fluid (CSF) rhinorrhea and carotid aneurysm is extremely rare. CSF rhinorrhea may cause pneumocephalus and intracranial infection. Rupture of the aneurysm may cause fatal consequence. The authors report such a rare case to draw more attentions. A 55-year-old man presented with sexual dysfunction for 2 years. The serum prolactin was tested as 1,600 ng/ml (normal range, 1.39–24.2). Enhanced cranial MR showed an evident lesion at the sellar area, invading the right cavernous sinus. Prolactinoma was diagnosed. He took bromocriptine for one year and received gamma knife therapy thereafter. Four months after the treatment of gamma knife, he got CSF rhinorrhea and nasal bleeding. The endoscopic transnasal-sphenoidal approach was performed to resect the tumor and repair the dura defect. The CSF rhinorrhea stopped after the surgery, however his nasal bleeding continued. The digital subtraction angiography (DSA) showed an aneurysm at the right cavernous internal carotid. The endovascular coil embolization was performed to treat the aneurysm. The patient recovered well. The coexistence of CSF rhinorrhea and pituitary adenoma is a high risk factor for the rupture of cavernous internal carotid aneurysm. When treating patients with pituitary adenoma and CSF rhinorrhea, doctors should exclude the aneurysm. When nasal bleeding occurs, the hemorrhage of internal carotid should be considered, and appropriate measures should be taken immediately.

Open Access Original Article Issue
Clinical features and prognostic factors of primary intracranial malignant fibrous histiocytoma: A report of 8 cases and a literature review
Brain Science Advances 2016, 2 (3): 155-164
Published: 01 September 2016
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Objective:

Primary intracranial malignant fibrous histiocytoma (MFH) is rare. We describe the detailed clinical features of 8 cases and fully review the literature to evaluate several prognostic factors.

Methods:

Eight patients with pathologically confirmed primary intracranial MFH were retrospectively reviewed. We searched PubMed for relevant articles with the term "intracranial malignant fibrous histiocytoma" .

Results:

Of the 8 patients, 4 were men and 4 were women. Three patients had received previous radiotherapy. The age of the patients ranged from 19 to 69 years, with a median age of 48 years. Most tumors could be totally resected; and only 1 tumor was subtotally resected. Six patients received postoperative radiotherapy and 3 patients received postoperative chemotherapy. Most patients died within the first year after surgery; and only 1 patient was still alive on the date of the last follow-up. We reviewed the literature and included a total of 46 patients in the Kaplan-Meier survival analysis. Young patients (less than 30 years old) seemed to have a better prognosis and survival rate than older patients (more than 30 years old) (log-rank test, P = 0.008). However, sex (P = 0.675), extent of resection (P = 0.934), postoperative radiotherapy (P = 0.592), and postoperative chemotherapy (P = 0.424) did not affect patient prognosis.

Conclusions:

The prognosis of MFH is usually poor, and most patients die within the first year after surgery. Younger MFH patients (less than 30 years old) seem to have a better prognosis and improved survival compared to older patients.

Open Access Short Communication Issue
Post-traumatic cerebrospinal fluid rhinorrhea associated with craniofacial fibrous dysplasia: Case report and literature review
Brain Science Advances 2016, 2 (3): 188-194
Published: 01 September 2016
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Objective:

Fibrous dysplasia (FD) is an unusual developmental abnormality of the skeleton. When facial and cranial bones are involved in FD, it is termed craniofacial fibrous dysplasia (CFD). Although several reports have reported that CFD has a tendency for spontaneous cerebrospinal fluid (CSF) leakage, there have been no related English-language case reports. We present the first case of post-traumatic CSF rhinorrhea associated with CFD.

Methods:

A 30-year-old man presented with CSF rhinorrhea after a mild head trauma. Computed tomography cisternogram located a defect in the posterior wall of the right frontal sinus. Imaging examination also showed the evident expansion of multiple skull bones, spinal scoliosis, and multiple local enlargements of ribs. Without café-au-lait cutaneous spots and endocrine abnormalities, polyostotic FD was diagnosed instead of McCune-Albright syndrome (MAS). The patient underwent craniotomy fistula repair surgery. The excised bone was contoured to be thinner to increase the cranial cavity. The patient recovered well and CSF leakage did not recur. But during a nineteen-month follow up, sight in the patient’s left eye was decreased. MAS was suspected. Unfortunately the patient refused to take the proposed decompression surgery and laboratory tests of serum hormones.

Conclusions:

CFD, if the wall of the paranasal sinus is involved and the cranial cavity is decreased, may increase the risk of CSF rhinorrhea after head trauma. Expectant management is recommended in asymptomatic CFD patients even in the presence of optic nerve compression. As MAS may cause more problems, it should be precluded before polyostotic FD is diagnosed.

Open Access Editorial Issue
Development of skull base neurosurgery: From the past to the future
Brain Science Advances 2016, 2 (3): 153-154
Published: 01 September 2016
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The origin of neurosurgery dates back to the end of the 19th century. Many prominent and pioneering neurosurgeons contributed substantially to the development of skull base neurosurgery. In the naked eye era, Harvey Cushing promoted the delicate and meticulous surgical techniques, and significantly decreased the surgical mortality. In the 1960s, the operative microscope was introduced to the neurosurgery. Neurosurgeons represented by Yasargil took full advantage of this technology and pushed skull base neurosurgery into a new era. Transnasal transsphenoidal approach has long been used to resect pituitary tumor. The use of endoscope expands the transnasal exposure from the crista galli to C-2. The endoscopic approach may represent a paradigm shift, perhaps equivalent to the introduction of the microscope, in approaching various skull base lesions.

Open Access Short Communication Issue
Complete resection of cavernous malformations in the hypothalamus: A case report and review of the literature
Brain Science Advances 2016, 2 (3): 199-202
Published: 01 September 2016
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Objective:

Cavernous malformation (CM) originating from the hypothalamus is extremely rare and the deep location presents a challenge for its neurosurgical management. We report such a case to better understand its clinical features.

Methods and Results:

A 40-year-old male patient presented with impaired vision in the left eye. Magnetic resonance imaging (MRI) revealed a regularly shaped round lesion located in the suprasellar cistern, and a clinical diagnosis of hypothalamic CM was made. Complete microsurgical excision was performed via a right pterional craniotomy. The patient showed good recovery with no further visual acuity or field deficits postoperatively. No CM recurrence or rebleeding was seen on follow-up MRI scans performed over the course of two years.

Conclusions:

For patients with cavernous malformation in the hypothalamus, accurate preoperative diagnosis with complete surgical removal by an appropriate surgical approach can contribute to satisfactory outcomes.

Open Access Original Article Issue
Gangliocytoma combined with a pituitary adenoma: Reports of three cases and literature review
Brain Science Advances 2016, 2 (3): 165-171
Published: 01 September 2016
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Objectives:

Sellar gangliocytomas are extremely rare. Since they present clinically and radiologically as pituitary adenomas, the preoperative diagnosis of these mixed tumors is very difficult. Here, we report three cases of gangliocytoma combined with pituitary adenoma and describe our findings.

Methods:

The clinical data of the three cases of gangliocytoma combined with pituitary adenoma have been retrospectively analyzed, and the published literature has also been reviewed.

Results:

All three patients underwent pure endonasal endoscopic surgery, and no recurrence was observed over a follow-up of at least 30 months. Growth hormone (GH)-hypersecreting adenoma and tumor calcification were detected in these mixed tumors.

Conclusions:

Pure endoscopic transnasal transsphenoidal surgery may be an effective way for the treatment of this kind of tumor. Gross total resection of the tumor is recommended. In addition, calcification with GH-hypersecretion may serve as a preoperative diagnostic clue for gangliocytoma in the sella turcica.

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