Thrombosed Aneurysm of Superficial Epigastric Vein Simulating Inguinal Hernia: Report of Two Cases

Aim. Presentation of two cases of superficial epigastric vein aneurysm simulating inguinal hernia. To our knowledge, only one other case is reported in the literature. Case presentation. The first case was a 34-year-old female with left inguinal pain and swelling which was clinically diagnosed as inguinal hernia. The second case was a 28-year-old female with inguinal pain and swelling, depicted with triplex ultrasonography and computed tomography, and was suspected to have inguinal hernia or enlarged inguinal lymph node. During the surgical exploration, both patients were found to have thrombosed aneurysm of the superficial epigastric vein. During the surgical exploration, both patients were found to have thrombosed aneurysm of the superficial epigastric vein. The superficial epigastric vein was ligated, and the venous aneurysms ( 6 × 4 × 3 and 2 × 3 × 2.5 c m , respectively) were excised. Histological examination of the thrombosed aneurysm showed complete replacement of the vascular wall by fibrous tissue, thrombosis, and an inflammatory reaction. There were no postoperative complications, and both patients were discharged on the second postoperative day. The 3-month and 1-year follow-up examination, respectively, was uneventful. Conclusion. Although venous aneurysms in the inguinal area are rare, they should be included in the differential diagnosis of a groin swelling.

Remarkable shrinkage of a thrombosed giant aneurysm by stent-assisted jam-packed coil embolization

Background: Large and giant aneurysms are known to involve intra-aneurysmal thrombosis and present a poor prognosis because of compression of the surrounding brain tissue with enlargement of the aneurysm. These aneurysms are difficult to cure by endovascular treatment due to involvement of the vasa vasorum in their pathology. We report this technical note to describe stent-assisted jam-packed coil embolization for the treatment of a giant thrombosed aneurysm. Case Description: A 62-year-old man presented with right homonymous hemianopsia, and magnetic resonance imaging (MRI) showed a giant thrombosed aneurysm with poor wall contrast enhancement, which indicates little involvement of the vasa vasorum, at the terminal part of the left internal carotid artery. To block blood flow into the aneurysmal dome, stent-assisted “jam-packed” coil embolization was performed. For this, a braided stent was shortened to enhance metal coverage ratio and tight aneurysmal coil packing was performed using a hydrogel coil. Our technique resulted in complete obliteration of the aneurysm, and MRI performed 1 year later showed remarkable shrinkage of the aneurysm dome. Conclusion: Stent-assisted jam-packed coil embolization technique might be effective in shrinking the dome of giant thrombosed aneurysms with poor wall contrast enhancement.

Treatment of a Giant Thrombotic M1 Segment Middle Cerebral Artery Aneurysm With Radial Artery Bypass and Distal Occlusion to Create a “Blind Sac” Following Endovascular Failure: 2-Dimensional Operative Video

The case is of a 36-yr-old male with a previously coiled aneurysm arising from the proximal M1 segment of the middle cerebral artery (MCA) just beyond the internal carotid artery (ICA) bifurcation who presented to our institution with subjective left hemiparesis, headache, and vomiting. Physical exam revealed a left facial droop, but neurological exam was otherwise normal, including full motor strength. Neuroimaging showed a large partially thrombosed aneurysm recurrence, measuring 5.2 cm, with obstructive hydrocephalus. Cerebral angiogram showed filling within a small portion of the aneurysm and marked stenosis of the MCA beyond the neck. A ventriculostomy was placed, and he underwent a pterional craniotomy for high-flow radial artery bypass from the common carotid artery to an M2 branch of the MCA and clip placement. This case demonstrates the creation of a blind sac by placing a clip on the MCA distal to the aneurysm and proximal to the lenticulostriate arteries for the treatment of a giant proximal M1 segment aneurysm. Postoperative digital subtraction angiography shows the MCA distribution, including the lenticulostriate arteries, filling through the radial artery bypass, and anterograde flow through the ICA, which perfuses up to and including the anterior choroidal artery. There is no residual filling of the aneurysm. The patient remained at his neurological baseline postoperatively and required ventriculoperitoneal shunt placement for hydrocephalus. At outpatient follow-up, computed tomography imaging showed decreased size of the thrombosed aneurysm, measuring 4.5 cm, and he had no neurological deficits. The patient gave informed consent for surgery and deidentified video recording of this case.

Ring enhanced aneurysm due to vasa vasorum of aneurysm wall mimicking a metastatic brain tumor

Background: A spherical intracranial mass can be occasionally misdiagnosed due to the lack of typical radiographic features. Completely thrombosed intracranial aneurysms (CTIA) are uncommon, but a possible differential diagnosis must be considered to guarantee the best surgical approach for these lesions. Case Description: Here, we report an extremely rare case of a right frontal mass mimicking a brain tumor, in which the surgery unveiled a CTIA of the right middle cerebral artery (MCA). A 56-year-old woman presented with right hemiparesis and mild headache. Magnetic resonance imaging (MRI) revealed a right frontal mass with peripheral edema. The lesion enhanced on initial and follow-up MRI of the brain. Subsequent vascular studies and metastatic workup were negative. A temporal craniotomy with neuronavigation (Brain Lab AG, Germany) was performed and an intraoperative diagnosis of a thrombosed aneurysm along the branch of the MCA was established. The aneurysm was successfully trapped and resected. The patient did not exhibit any postoperative neurological deficits. Conclusion: This is the rare report of a ring enhanced completely thrombosed aneurysm due to vasa vasorum which is misdiagnosed as metastatic brain tumor. In case of an intracranial ring enhanced mass with signs of intralesional hemorrhage and peripheral edema, CTIA should be considered as a possible differential diagnosis.

Treatment of Middle Cerebral Artery Occlusion with Concomitant Partially Thrombosed Aneurysm: a Case Report

A 68-year-old female with an acute ischemic stroke demanding emergency thrombectomy which was complicated by the presence of an intracranial aneurysm. Computer tomography revealed the occlusion of the right middle cerebral artery with a distal non-ruptured partially thrombosed aneurysm. The treatment consisted in the administration of intravenous recombinant tissue plasminogen activator and the removal of the proximal thrombus via direct aspiration in order to prevent perforation of the distal aneurysm. After the procedure, the clinical symptoms improved significantly indicated by the National Institutes of Health Stroke Scale (NIHSS). The aim of the present case report is, therefore, to suggest a clinical approach to help physicians in the decision-making process for early and safe revascularization in patients with ischemic stroke and intracranial aneurysms.