Skeletal Radiology

, Volume 47, Issue 9, pp 1305–1310 | Cite as

Intra-articular solitary fibrous tumor of the knee

  • Michael Roth
  • Salem Alowami
  • Snezana Popovic
  • Srinivasan Harish
Case Report


A rare case of intra-articular solitary fibrous tumor of the knee in an 84-year-old man is presented. This case report illustrates that solitary fibrous tumor should be included in the extended differential diagnosis of an intra-articular soft tissue mass.


Solitary fibrous tumor Soft tissue neoplasm Intra-articular Knee 


Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflicts of interest.


  1. 1.
    Adams ME, Saifuddin A. Characterisation of intra-articular soft tissue tumours and tumour-like lesions. Eur Radiol. 2007;17(4):950–8.CrossRefPubMedGoogle Scholar
  2. 2.
    Li PK, James SL, Davies AM. Tumour and tumour-like lesions of the intercondylar notch of the knee: a pictorial review. J Med Imaging Radiat Oncol. 2008;52(5):434–46.CrossRefPubMedGoogle Scholar
  3. 3.
    Sheldon PJ, Forrester DM, Learch TJ. Imaging of intraarticular masses. Radiogr Rev Publ Radiol Soc N Am Inc. 2005;25(1):105–19.Google Scholar
  4. 4.
    Friedman MV, Kyriakos M, Matava MJ, McDonald DJ, Jennings JW, Wessell DE. Intra-articular synovial sarcoma. Skelet Radiol. 2013;42(6):859–67.CrossRefGoogle Scholar
  5. 5.
    Klemperer P, Coleman BR. Primary neoplasms of the pleura. A report of five cases. Am J Ind Med. 1992;22(1):1–31.CrossRefPubMedGoogle Scholar
  6. 6.
    Wignall OJ, Moskovic EC, Thway K, Thomas JM. Solitary fibrous tumors of the soft tissues: review of the imaging and clinical features with histopathologic correlation. AJR Am J Roentgenol. 2010;195(1):W55–62.CrossRefPubMedGoogle Scholar
  7. 7.
    Goodlad JR, Fletcher CD. Solitary fibrous tumour arising at unusual sites: analysis of a series. Histopathology. 1991;19(6):515–22.CrossRefPubMedGoogle Scholar
  8. 8.
    Doyle LA, Vivero M, Fletcher CD, Mertens F, Hornick JL. Nuclear expression of STAT6 distinguishes solitary fibrous tumor from histologic mimics. Mod Pathol Off J U S Can Acad Pathol Inc. 2014;27(3):390–5.Google Scholar
  9. 9.
    Gold JS, Antonescu CR, Hajdu C, Ferrone CR, Hussain M, Lewis JJ, et al. Clinicopathologic correlates of solitary fibrous tumors. Cancer. 2002;94(4):1057–68.CrossRefPubMedGoogle Scholar
  10. 10.
    Vallat-Decouvelaere AV, Dry SM, Fletcher CD. Atypical and malignant solitary fibrous tumors in extrathoracic locations: evidence of their comparability to intra-thoracic tumors. Am J Surg Pathol. 1998;22(12):1501–11.CrossRefPubMedGoogle Scholar
  11. 11.
    England DM, Hochholzer L, McCarthy MJ. Localized benign and malignant fibrous tumors of the pleura. A clinicopathologic review of 223 cases. Am J Surg Pathol. 1989;13(8):640–58.CrossRefPubMedGoogle Scholar
  12. 12.
    Papathanassiou ZG, Alberghini M, Picci P, Staals E, Gambarotti M, Garaci FG, et al. Solitary fibrous tumors of the soft tissues: imaging features with histopathologic correlations. Clin Sarcoma Res. 2013;3(1):1–8.CrossRefPubMedPubMedCentralGoogle Scholar
  13. 13.
    Li XM, Reng J, Zhou P, Cao Y, Cheng ZZ, Xiao Y, et al. Solitary fibrous tumors in abdomen and pelvis: imaging characteristics and radiologic-pathologic correlation. World J Gastroenterol: WJG. 2014;20(17):5066–73.CrossRefPubMedGoogle Scholar
  14. 14.
    Hyodo R, Komada T, Takada A, Kawai H, Ito S, Nishida Y, et al. Solitary fibrous tumors in the extremities: imaging findings for six patients. Nagoya J Med Sci. 2015;77(1–2):167–78.PubMedPubMedCentralGoogle Scholar
  15. 15.
    Shaerf DA, Mann B, Alorjani M, Aston W, Saifuddin A. High-grade intra-articular liposarcoma of the knee. Skelet Radiol. 2011;40(3):363–5.CrossRefGoogle Scholar
  16. 16.
    Guillou L, Fletcher JA, Fletcher CD, et al. Extrapleural solitary fibrous tumor and haemangiopericytoma. In: Fletcher CD, Unni KK, Mertens F, editors. World Health Organization classification of tumours. Pathology and genetics of tumours of soft tissue and bone. Lyon: IARC Press; 2002. p. 86–90.Google Scholar
  17. 17.
    Demicco EG, Harms PW, Patel RM, Smith SC, Ingram D, Torres K, et al. Extensive survey of STAT6 expression in a large series of mesenchymal tumors. Am J Clin Pathol. 2015;143(5):672–82.CrossRefPubMedPubMedCentralGoogle Scholar

Copyright information

© ISS 2018

Authors and Affiliations

  • Michael Roth
    • 1
    • 2
  • Salem Alowami
    • 3
  • Snezana Popovic
    • 4
  • Srinivasan Harish
    • 1
  1. 1.Department of Radiology, St. Joseph’s HealthcareMcMaster UniversityHamiltonCanada
  2. 2.Department of Radiology, St. Joseph’s Health Care LondonWestern UniversityLondonCanada
  3. 3.Department of Pathology and Molecular Medicine St Joseph’s HealthcareMcMaster UniversityHamiltonCanada
  4. 4.Department of Pathology and Molecular Medicine, McMaster University Health Sciences CentreMcMaster UniversityHamiltonCanada

Personalised recommendations