• Journal of Korean Neurosurgical Society
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• v.54 no.3
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• pp.253-256
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• 2013

Spinal intradural hemangiopericytoma is a very rare tumor and can be characterized by massive bleeding during surgeries, frequent recurrence, and metastasis. However, definite radiologic differential points of hemangiopericytoma are not known. We describe an unexpected hemangiopericytoma case with large bleeding and management of the tumor. A 21-year-old man visited complaining of progressive neck pain and tingling sensation in both hands. Magnetic resonance imaging of his spine revealed C1-2 ventral intradural mass. When the dura was opened, the intradural tumor was placed behind spinal accessary nerves. The tumor was partially exposed only after some accessary nerves had been cut. When internal debulking was performing, unexpected bleeding was noted and it was difficult to control because of narrow surgical field and hypervascularity. Intraoperative spinal angiography and embolization were performed. The tumor was completely removed after embolization. Pathological diagnosis was consistent with hemangiopericytoma. When surgeons meet a flesh-red tumor that bleeds unexpectedly during surgery, hemangiopericytoma may be considered. When feeder control is hard due to reciprocal location of spinal cord, the tumor, and feeders, intraoperative angiography and embolization may be a possible option.

• The Journal of the Korean dental association
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• v.15 no.3
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• pp.193-197
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• 1977

A 64-year-old Korean woman, presented a hemangiopericytoma of the sublingual fossa and was of 10 years' duration. It was encapsulated and considered benign. The hemangiopericytoma is an uncommon tumor which is a vascular neoplasm characterized by the proliferation of capillaries surrounded by masses of round or spindle-shaped cells. The treatment of most reported cases of hemangiopericytoma has been surgical excision because of no recurrence and the excellent results obtained.

• Journal of Chest Surgery
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• v.23 no.2
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• pp.377-381
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• 1990

Hemangiopericytoma is a rare neoplasm of vascular origin and arises in almost any part of the body. We experienced a 26 year-old man of primary pulmonary hemangiopericytoma with 4 months history of hemoptysis. Pulmonary hemangiopericytoma has no characteristic clinical or radiological features to distinguish it from other tumor of the lung, and because of that reason, wide surgical excision appears to be the treatment of choice. The hemangiopericytoma is usually encapsulated, and is composed of capillary pericytes histologically. The prognosis of the tumor is poor. Our case was dead 1 year after surgery because of the recurrence.

• Journal of Korean Neurosurgical Society
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• v.40 no.6
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• pp.467-470
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• 2006

Primary intracranial hemangiopericytoma is rare and resemble meningioma on imaging study. It shows meningeal attachment, and is usually isointense with gray matter on T1-weighted MR image with heterogeneous enhancement and prominent vascular flow voids on T2-weighted image. Cystic type of hemangiopericytoma is very rare and only 3 cases have been reported in the literature which arised in the middle fossa, cerebellum, and occipital area. Ventricular hemangiopericytomas were reported in 9 cases, and all of them were solid type. Authors experienced a peculiar case of cystic hemangiopericytoma in the 3rd ventricle and report it with review of the literature.

• Journal of Chest Surgery
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• v.39 no.6 s.263
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• pp.495-497
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• 2006

Hemangiopericytoma is a rare vascular tumor derived from the pericyte and usually occures in the lower extremities and the retroperitoneum. Complete excision is treatment of choice. Regular follow up is strongly recommended due to its potential malignancy which is recurrence and metastasis. We experienced surgical excision of metastatic pulmonary hemangiopericytoma from retroperitoneal hemangiopericytoma completely excised 10 years ago.

• Journal of Chest Surgery
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• v.33 no.10
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• pp.843-846
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• 2000

Primary hemangiopericytoma of chest wall is very rate and only a few cases have ever been reported. The tumor aries from the capillary pericyte of Zimmerman. It is a highly vascular slow growing tumor which can be calssified as both malignant and benign varieties. We report a case of a 66 year-old man in whom recurrent hemangiopericytoma was treated by complete surgical excision. In October 1993 he had received surgical excision of hemangiopericytoma on posterior chest wall. For more than 6 years after the operation he was in good condition until a recurrent mass was found on the chest X-ray. The patient was discharged 9 days after the operation and is receiving radiotherapy.

• Journal of Korean Neurosurgical Society
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• v.30 no.5
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• pp.666-669
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• 2001

We report a case of meningeal hemangiopericytoma presenting as metastasis in the vertebral body and pedicle of the thoracic spine. Hemangiopericytoma is a rare vascular neoplasm. Although the tumor has a strong propensity for both local recurrence and extracranial metastasis, metastasis to thoracic spine is very rare and only two cases were found in the literature. A 44-year-old woman with paraparesis and pain in the thoracic and lower legs was examined by plain radiographs and magnetic resonance imaging. The intracranial hemangiopericytoma was operated 3 years ago. Magnetic resonance imaging demonstrated a tumor invading the left vertebral body and pedicle of the 11th thoracic spine, and compressing the dural sac. The patient was gradually improved after surgical removal of the lesions and the histologic findings were characteristics of hemangiopericytoma.

• Tuberculosis and Respiratory Diseases
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• v.44 no.3
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• pp.655-660
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• 1997

Hemangiopericytoma is a rare vascular tumor arising from pericytes. The tumor usually develops in the skin or subcutaneous tissue, particularly in the extremities. A pulmonary origin of hemangiopericytoma is known to be quite rare. It has the potential to become a highly malignant lesion, so wide excision is the treatment of choice. We present a case of primary malignant hemangiopericytoma of the lung and discuss the clinical symptoms, diagnosis, therapy and prognosis within the context of a brief review.

• Journal of Chest Surgery
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• v.18 no.3
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• pp.513-516
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• 1985

Hemangiopericytoma is a rare tumor of vascular origin, first described by Stout and Murray in 1942. It is characterized by proliferation of capillaries surrounded by pericytes. There is no characteristic clinical or radiological finding. Wide excision is the treatment of choice. A 21 year-old man was admitted with one year history of productive cough. On admission, chest film showed large lobulated mass and Right lower lobe atelectasis. Rt. pneumonectomy was performed and the tumor was confirmed as malignant hemangiopericytoma of the lung. Local recurrence didn`t occur until now.

• Maxillofacial Plastic and Reconstructive Surgery
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• v.12 no.1
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• pp.187-192
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• 1990

This is a case report of hemangiopericytoma on lower lip. Hemangiopericytomas are very rare tumors of vascular origin featuring pericytes distributed about vascular spaces. Approximately one third occur in the head and neck, but the oral hemangiopericytomas are very rare and occur on tongue, mandible, maxilla and lip etc. The histogenesis is uncertain and there is no feature to distinguish the benign from the malignant variants. Complete excision is mandatory to avoid recurrence. A review of the literature and a report of a case of the oral hemangiopericytoma is presented.