J Korean Soc Radiol.  2013 Jul;69(1):1-4. 10.3348/jksr.2013.69.1.1.

CT and Magnetic Resonance Imaging Findings of Lipomatous Hemangiopericytoma of Skull Base: A Case Report

• Park HG
• Yu IK
• Kim HK
• Kim SM
• Kang DW

• KMID: 2002883
• DOI: http://doi.org/10.3348/jksr.2013.69.1.1

Abstract

Lipomatous hemangiopericytoma (LHPC) is recently recognized as a rare hemangiopericytoma variant. To our knowledge, imaging features of LHPC involving skull base have not yet been reported. We present the imaging features of LHPC of skull base in a 44-year-old female, along with a literature review CT and magnetic resonance imagings showed well-enhanced fatty issues containing temporal skull base masses, with pressure bony erosions.

MeSH Terms

Female
Hemangiopericytoma
Humans
Lipoma
Magnetic Resonance Imaging
Magnetic Resonance Spectroscopy
Magnetics
Magnets
Rectal Neoplasms
Skull
Skull Base
Hemangiopericytoma
Lipoma
Rectal Neoplasms

Figure

• 

  Fig. 1 A 44-year-old woman who presented with 1 month history of dizziness. A. Precontrast CT image shows well-defined round solid increased attenuated tumor (arrowheads), with containing intratumoral fat-attenuated (-60 Hounsfield unit) component (arrow) at the right temporal base area. B. Sagittal postcontrast CT image shows well enhancing solid hypervascular extraaxial tumor with small inferior extracranial extention via widened foramen ovale. C. Coronal temporal bone CT image shows tumor with adjacent bone pressure erosion and small inferior extracranial extention via widened foramen ovale (arrows). D. T1-weighted axial magnetic resonance (MR) image shows slightly hypointense mass (arrows) with central irregular high signal intensity portions, intratumoral lipoma component (arrowheads). E. T2-weighted axial MR image shows intermediate signal intensity mass, intratumoral signal void structures (arrows), with intratumoral high signal intensity portions (arrowheads). F. Contrast-enhanced T1-weighted axial MR image shows well enhancing solid mass. G. Contrast-enhanced T1-weighted coronal MR image shows small inferior extension to extracranial space via foramen ovale with central fat-saturated poorly enhancing portion (arrowheads). H. Lateral angiography shows hypervascular tumor staining fed by the right middle meningeal artery (arrowheads), and internal maxillary artery (arrows). I. Histologic features of lipomatous hemangiopericytoma. Microscopic view shows a highly vascular tumor, with hyperchromatic nuclei and normal adipocytes are seen within the tumor matrix (H&E, × 200).

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