Primary Hemangioma of the Occipital Bone in the Region of the Torcula. Two Case Reports.

Abstract

Two rare cases of subtorcular occipital bone hemangioma occurred in 26-year-old and 30-year-old female patients. Partial resection was performed in both cases because of the proximity to the torcula. No recurrence was seen at follow-up examination at 9 and 12 months.

Intraosseous cavernous hemangioma of parietal bone: A case report and literature review

“…The risk of bleeding is reduced when total resection is performed with an acceptable normal bone margin [2,11,23,24]. Preoperative embolization has also been observed to minimize intraoperative blood loss by several researchers [19,25,26]. Radiotherapy can slow the development of tumors but cannot remove them [11].…”

Giant primary calvarial hemangioma over torcula: Radiological features and operative nuances

“…Similar information was obtained by invasive diagnostic procedure like digital subtraction angiography in two reported cases. [ 3 ]…”

“…The literature describes only two cases where such a neoplasm was described just in proximity to torcula. [ 3 ] Both cases underwent partial tumor excision, followed by radiation therapy. We decided for total tumor excision, as the radiology had described intact inner table and no invasion of underlying venous channels or dura.…”

“…Primary intra-osseous cavernous hemangiomas (PICHs) account for only 0.2% of all bone neoplasms. [ 12 ] Calvarial involvement by giant PICHs[ 2 4 5 6 9 10 11 ] [ Table 1 ] and PICH involving squama of occipital bone[ 3 4 7 ] are rarely reported. These lesions occur in fourth decade and women are affected 2–4 times more often than men.…”