Journal of the Chinese Medical Association
Volume 73, Issue 1 , Pages 52-55, January 2010

Extraskeletal Osteochondroma of the Foot

  • Victor Ka-Siong Kho
    • ,
  • Wen-Chih Chen

      Affiliations

    • Corresponding Author InformationCorrespondence to: Dr Wen-Chih Chen, Division of Orthopedics, Department of Surgery, Far Eastern Memorial Hospital and Medical Center, 21, Section 2, Nan-Ya South Road, Banciao, Taipei 220, Taiwan, R.O.C.

Division of Orthopedics, Department of Surgery, Far Eastern Memorial Hospital Banciao, Taipei, Taiwan, R.O.C.

Received 7 April 2009; accepted 18 September 2009.

Article Outline

Extraskeletal osteochondroma, an infrequently encountered benign lesion, is described in 1 patient who presented with a slow-growing, relatively painful mass on the dorsal side of his right foot, in the 3rd toe web. Radiographs and magnetic resonance imaging studies demonstrated a radio-opaque extraskeletal mass. Excision biopsy revealed a well-defined and lobulated, firm, calcified, extraskeletal mass, which was easily enucleated. Histologic examination revealed mature chondroid tissues with bland-looking chondrocytes and ossified tissues. The diagnosis of an extraskeletal osteochondroma should be considered when a discrete ossified mass is localized in the soft tissues of the distal extremities. A case of pathologically proven extraskeletal osteochondroma is presented together with clinical, radiologic, and magnetic resonance imaging findings, and a literature review.

Key Words:  calcification , extraskeletal osteochondroma , magnetic resonance imaging , mature chondroid tissues

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References 

  1. Chung EB , Enzinger FM . Chondroma of soft parts . Cancer . 1978;41:1414–1424
  2. Dahlin DC , Salvador AH . Cartilaginous tumors of the soft tissues of the hands and feet . Mayo Clin Proc . 1974;49:721–726
  3. Dahlin DC , Unni KK . In: Bone Tumors . 4th edition. Springfield, IL: Charles C. Thomas; 1986;p. 19–22 228–9.
  4. Papagelopoulos PJ , Savvidou OD , Mavrogenis AF , Chloros GD , Papaparaskeva KT , Soucacos PN . Extraskeletal chondroma of the foot . Joint Bone Spine . 2007;74:285–288
  5. Anthouli-Anagnostopoulou FA , Papachristou G . Extraskeletal chondroma, a rare soft tissue tumor: case report . Acta Orthop Belg . 2000;66:402–404
  6. Aslam MB , Haqqani MT . Extraskeletal chondroma of parotid gland . Histopathology . 2005;48:465–467
  7. Gulati Y , Maheshwari A , Sharma V , Mattoo R , Arora D , Gupta N . Extraskeletal osteochondroma of the thigh: a case report . Acta Orthop Belg . 2005;71:115–118
  8. Kudawara I , Ueda T , Araki N . Extraskeletal chondroma around the knee . Clin Radiol . 2001;56:779–782
  9. Lim SC , Kim YS , Moon YR . Extraskeletal osteochondroma of the buttock . J Korean Med Sci . 2003;18:127–130
  10. Singh R , Sharma AK , Magu NK , Kaur KP , Sen R , Magu S . Extraskeletal osteochondroma in the nape of the neck: a case report . J Orthop Surg . 2006;14:192–195
  11. Kransdorf MJ , Meis JM . From the archives of the AFIP. Extra-skeletal osseous and cartilaginous tumors of the extremities . Radiographics . 1993;13:853–884
  12. Cin PD , Qi H , Sciot R , Van Den Berghe H . Involvement of chromosomes 6 and 11 in a soft tissue chondroma . Cancer Genet Cytogenet . 1997;93:177–178
  13. Dahlén A, Mertens F, Rydholm A, Brosjö O, Wejde J, Mandahl N, et al. Fusion, disruption, and expression of HMGA2 in bone and soft tissue chondromas . Mod Pathol . 2003;16:1132–1140
  14. Milgram JW , Dunn EJ . Para-articular chondromas and osteochondromas: a report of three cases . Clin Orthop . 1980;148:147–151
  15. Dellon AL , Weiss SW , Mitch WE . Bilateral extraosseous chondromas of the hand in a patient with chronic renal failure . J Hand Surg Am . 1978;3:139–141

PII: S1726-4901(10)70023-X

doi:10.1016/S1726-4901(10)70023-X

Journal of the Chinese Medical Association
Volume 73, Issue 1 , Pages 52-55, January 2010

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