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HPC is a soft tissue neoplasm of mesenchymal origin first described by Stout and Murray in 1942. HPC constitutes 1 % of all vascular neoplasms and has been thought to coexist with trauma, prolonged steroid use, and hypertension. Hemangiopericytoma is a neoplasm believed to be derived from pericytes, contractile cells with processes that wrap around capillaries and aid in autoregulation of blood flow. 641 There are fewer than 30 reported cases of hemangiopericytoma of the kidney, and in at least half of these the tumor involved only the renal capsule or adjacent soft tissues, without renal parenchymal involvement; in Hemangiopericytoma is a rare type of tumor involving blood vessels and soft tissue.

This page discusses intracranial hemangiopericytomas. Guardado por VirtualMedStudent. 1. Cerebro Imagen Médica Meningeal hemangiopericytomas are rare but aggressive tumors. All eight patients in this series developed recurrences, three with distant metastases. In six patients a lytic destructive lesion of bone was evident. CT scans in three patients demonstrated diffusely enhancing lesions.

The tumor is fast growing, tend to recur and hat h high proensity to develop distand metastases along the neuronal axis [1-4].

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Sydney M. Evans VMD, MS. Corresponding Author. Section of Radiology, University of Pennsylvania, School of Veterinary Medicine, Philadelphia, Pennsylvania.

Michael Dictor - Research Outputs - Lund University

Imaging findings were indistinguishable from an aggressive bone tumor such as Ewing's sarcoma. Imaging findings are presented and discussed. Our case indicates that MHP should be considered in the differential Department of Radiology, Affiliated Hospital of North Sichuan Medical College, Sichuan Province, China. ∗Correspondence: Yong Du, Wenhua Road No. 63, Nanchong 637000, Sichuan Province, China (e-mail: dy_nsmc@163.com). Abbreviations: CPA = cerebellopontine angle, CT = computed tomography, HPC = hemangiopericytoma, IAC = internal auditory canal, MRI = magnetic resonance imaging, SFT = solitary The radiology literature has reported a total of five cases of primary pulmonary hemangiopericytoma from two studies. In both, emphasis is placed on radiographic, CT, and MRI features [6, 7].

Our case indicates that MHP should be considered in the differential Department of Radiology, Affiliated Hospital of North Sichuan Medical College, Sichuan Province, China. ∗Correspondence: Yong Du, Wenhua Road No. 63, Nanchong 637000, Sichuan Province, China (e-mail: dy_nsmc@163.com). Abbreviations: CPA = cerebellopontine angle, CT = computed tomography, HPC = hemangiopericytoma, IAC = internal auditory canal, MRI = magnetic resonance imaging, SFT = solitary The radiology literature has reported a total of five cases of primary pulmonary hemangiopericytoma from two studies. In both, emphasis is placed on radiographic, CT, and MRI features [6, 7]. However, to our knowledge, MR angiography and Doppler sonography findings of hemangiopericytoma arising in the lung have not been documented. 1968-11-01 ient concerns: A 62-year-old woman presented with symptoms of hypomnesia, hyperopia, and double vision for 1 month.
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1 Meningeal HPCs (M‐HPCs) constitute < 2.5 % of all meningeal tumors and < 1 % of all intracranial tumors. 2-4 Solitary fibrous tumors (SFTs) are a rare group of spindle cell neoplasms that include fibrous-to-cellular SFTs and related lesions such as lipomatous hemangiopericytoma and giant cell angiofibroma . SFTs were first described as originating from the pleura [ 2 ] and occurring most commonly in the thoracic cavity [ 3 , 4 ], but it is now recognized that these rare tumors can occur throughout Radiology images. Images hosted on other servers: 31 year old man with splenic hemangiopericytoma and serosal cavernous hemangiomatosis of adjacent colon 1.
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Michael Dictor - Research Outputs - Lund University

A biopsy sample was diagnosed as an atypical meningioma. Diagnosis: MHPC with late delayed hepatic metastasis. Intervention: Hepatic resection was performed initially, followed by secondary neurosurgery for … Hemangiopericytoma should beconsidered inthedifferential diagnosis ofwell-circumscribed hypervascular tumors Inamiddle-aged patient.