A3-A3 side-to-side anastomosis combined with endovascular intervention in recurrent complex anterior artery aneurysm: a case report and literature review / 浙江大学学报·医学版

A 28-year-old female patient was admitted to the Second Affiliated Hospital, Zhejiang University School of Medicine, with sudden headache and vomiting for 1 day. CT scan conducted at emergency revealed subarachnoid hemorrhage, whereas digital subtraction angiography demonstrated a wide-neck aneurysm located at A1 segment of the left anterior cerebral artery. The aneurysm was totally coiled using stent assistance, which, however, was recanalized at 3 month follow-up. This patient was then subjected to aneurysm and parent artery occlusion after bypass of the bilateral A3 segments, who recovered well and discharged without ischemic complications.

Early management of intracranial ruptured vertebral dissecting aneurysms / 浙江大学学报·医学版

<p><b>OBJECTIVE</b>To evaluate the early management of intracranial ruptured vertebral dissecting aneurysms.</p><p><b>METHODS</b>Twenty-two patients with ruptured vertebral dissecting aneurysms were managed by various treatment modalities according to their conditions. One aneurysm was treated by proximal vertebral artery coiling, 15 aneurysms by aneurysm and parent artery coiling, and 5 aneurysms by stent-assisted coiling (4 of 5 by stent-within-a-stent technique), one by single double-stent. Bloody cerebrospinal fluid was drained by postoperative lumbar subarachnoid drainage in order to prevent cerebral vasospasm.</p><p><b>RESULTS</b>All 22 cases were successful without bleeding complication during the operation.There was 1 case of early postoperative non-aneurysmal hemorrhage, 2 cases of posterial group cranial nerves palsies, 1 case harbored Hunt & Hess IV who gave up treatment. After follow-up for 3-18 months, there was no rebleeding and infarction. Twenty patients recovered well, except 1 having posterial group cranial nerves palsies. Fourteen cases were followed up by angiography. In 3 patients treated by stent-assisted coiling, DSA showed that aneurysms disappeared and loading vessel passed freely.DSA of 11 cases with aneurysm and parent artery coiling demonstrated complete obliteration of the dissection without aneurysm imaging.</p><p><b>CONCLUSION</b>Early endovascular treatment of ruptured vertebral dissecting aneurysms is essential. The selective method of endovascular management according to the characteristics of aneurysm is safe and effective. Double stent-assisted coiling should be the first choice.</p>

Imaging diagnosis of skull epidermoid cyst:analysis of four cases / 中华放射学杂志

Objective To study the CT and MR imaging features of skull epidermoid cyst. Methods CT and MR findings of 4 cases of pathologically proved skull epidermoid cyst were analyzed and correlated with operative and pathologic reports.Results CT and MR appearances of skull epidermoid cyst were as follows:(1)crater-form or scalloping deossification with sclerotic border and fatty density focus was detected on CT.(2)The lesions were isointense to hypointense relative to normal white matter in T1-weighted image,prominent hyperintense in T_2-weighted image,mild to moderate hyperintense in diffusion-weighted imaging(DWI),and isointense to hypointense in apparent diffusion coefficient(ADC) map on MR.Proton MRS revealed lactate(Lac)peaks at 1.3 ppm and amino acids(AAs)at 0.9 ppm. (3)No enhancement was found in substance region of all tumors on both enhanced CT and enhanced MR examinations.Conclusion CT and MR appearances of skull epidermoid cyst have unique features which are very helpful in the diagnosis of skull epidermoid cyst.