Korean J Radiol.  2008 Jul;9(Suppl):S48-S51. 10.3348/kjr.2008.9.s.s48.

Solitary Fibrous Tumor of the Pancreas: Imaging Findings

• Kwon HJ
• Byun JH
• Kang J
• Park SH
• Lee MG

• KMID: 1100104
• DOI: http://doi.org/10.3348/kjr.2008.9.s.s48

Abstract

We report here a case of a pathologically proven solitary fibrous tumor of the pancreas. A 54-year-old man was referred to our hospital for further evaluation of a pancreatic mass that was found incidentally. CT, MR imaging, and endoscopic ultrasonography showed a well-defined, enhancing mass with cystic portions of the pancreas body. MR cholangiopancreatography showed no pancreatic duct dilatation. A solitary fibrous tumor of the pancreas is a very rare lesion.

Keyword

Pancreas, Neoplasm; Pancreas, CT; Pancreas, MR

MeSH Terms

Cholangiopancreatography, Magnetic Resonance
Endosonography
Humans
Male
Middle Aged
Pancreatic Neoplasms/*diagnosis
Solitary Fibrous Tumors/*diagnosis
Tomography, X-Ray Computed

Figure

• 

  Fig. 1 54-year-old man with solitary fibrous tumor in pancreas. A-D. Axial unenhanced (A), arterial phase (B), portal phase (C), and coronal reformatted, portal phase (D) CT images show well-defined, lobulate mass (arrows) in pancreatic body. On contrast-enhanced CT scans, mass showed progressive enhancement from arterial phase to portal venous phase with large and multiple small non-enhancing portions and well-enhancing thin capsule. E. On axial T2-weighted MR image, mass is heterogeneously hyperintense to pancreas parenchyma. Non-enhancing portions within tumor on CT show bright signal intensity, indicating necrosis or cystic change. F. On axial, contrast-enhanced, T1-weighted MR image obtained during delayed phase, mass appears to be subtly heterogeneously enhanced with non-enhancing portions, indicating necrosis or cystic change, and well-enhancing capsule. G. Endoscopic ultrasonography displays ovoid, well-demarcated, echogenic pancreatic mass (arrows) with cystic portion (arrowheads) of heterogeneous internal echogenecities. H. Photograph of cut surface of surgical specimen shows ovoid, firm mass (black arrows) attached to pancreas (P) with focal cystic degeneration (C) in mass. I. Photomicrograph of histologic material shows pattern-less architecture of typical bland spindle cells (Hematoxylin & Eosin staining, ×200). J. Immunohistochemical staining for CD 99 shows diffuse positivity in tumor cells (×200). Cytoplasms of tumor cells are brown and nuclei of tumor cells are blue.

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