Corrigendum to 'Successful preoperative embolization of a cystic-solid variant of cerebellopontine angle hemangioblastoma' [Radiology Case Reports 17 (2022) 4799-4803].

[This corrects the article DOI: 10.1016/j.radcr.2022.09.045.].

Spontaneous external jugular vein pseudoaneurysm: A rare cause of neck swelling.

Pseudoaneurysm of the external jugular vein is a relatively unusual cause of a neck mass caused by the low pressure venous system. Regardless of etiology, spontaneous pseudoaneurysms are extremely rare, and only few cases have been described in literature. They require surgery; however, most patients can be safely discharged with close follow-up with a vascular surgeon. This case demonstrates a 30-year-old man who presented with a non-tender, compressible, left-sided neck mass that enlarged with Valsalva, and intermittent paresthesias. Ultrasound confirmed a cystic mass of unknown etiology containing doppler flow suggesting the diagnosis of an external jugular vein pseudoaneurysm, confirmed by a CT angiogrphy. The patient refused the surgery, and we agreed he was safe for discharge at that time and could follow up with vascular surgery as an outpatient.

Successful preoperative embolization of a cystic-solid variant of cerebellopontine angle hemangioblastoma.

Tumors of the cerebellopontine angle (CPA) represent an heterogeneous group which can arise extradural, intradural-extraaxial or intraaxial compartment. Hemangioblastomas of the cerebellopontine angle (CPA) are extremely rare. Computed tomography (CT) and magnetic resonance imaging (MRI) are often the gold-standard radiological imaging modalities used in characterizing the lesion's features, and its relationship with the surrounding structures. They are vascular lesions and may cause profuse bleeding intraoperatively, that is why angiography remains a crucial diagnostic and therapeutic tool, by reducing both the presurgical differential diagnosis, as well as the intraoperative bleeding by providing capability of embolization of this vascular tumor. We present the case of a 65 year old patient with a cystic-solid variety of HMB at the right CPA, which was successfully treated by a combination of an endovascular preoperative embolization and surgery without major complications or neurological deficits.

Embolization for the treatment of renal artery pseudoaneurysm following surgical nephrolithotomy: A case report.

Renal artery pseudoaneurysm is a rare but serious complication following trauma or renal surgery, leading to hematuria and deterioration of renal function. Selective renal artery embolization is an interventional radiologic procedure that can be used to treat these complications. We report a case of a 62 years old woman who developed hematuria following a segmental renal artery pseudoaneurysm after staghorn stones surgical nephrolithotomy, a selective embolization with steel coils was successfully performed.

Aneurysmal bone cyst of the ethmoid on fibrous dysplasia: A usual association within a rare location.

Aneurysmal bone cyst is a non-neoplastic lesion consisting of blood filled sinusoidal spaces that expand from the affected bone. The most common locations of aneurysmal bone cysts are the metaphysis of long bones, followed by flat bones. Only 2% of all are found in the head and neck area, with mandible and maxilla being the most frequent sites involved, involvement of the ethmoidal bone is extremely rare. Their occurrence on a pre-existing bone lesion is described. Imaging features may assist in diagnosis by demonstrating blood-fluid levels, which are a characteristic finding in these lesions. We present computed tomography and magnetic resonance imaging findings of aneurysmal bone cyst of the ethmoid sinus on fibrous dysplasia in a 12-year-old female.