Vet Comp Orthop Traumatol 2010; 23(04): 277-283
DOI: 10.3415/VCOT-09-03-0036
Case Report
Schattauer GmbH

Extra- and intra-articular synovial chondromatosis and malignant transformation to chondrosarcoma

C. Díaz-Bertrana
1   Facultad de Veterinaria, Departmento de Medicina y Cirugía Animal, Universidad Autónoma de Barcelona, Bellaterra, Barcelona, Spain
,
I. Durall
1   Facultad de Veterinaria, Departmento de Medicina y Cirugía Animal, Universidad Autónoma de Barcelona, Bellaterra, Barcelona, Spain
,
M.Rial. Rial
2   Hospital Veterinario Marina Baixa SL, Alfaz del Pi, Alicante, Spain
,
J. Franch
1   Facultad de Veterinaria, Departmento de Medicina y Cirugía Animal, Universidad Autónoma de Barcelona, Bellaterra, Barcelona, Spain
,
P. Fontecha
1   Facultad de Veterinaria, Departmento de Medicina y Cirugía Animal, Universidad Autónoma de Barcelona, Bellaterra, Barcelona, Spain
,
A. Ramis
3   Facultad de Veterinaria, Departamento de Sanidad Animal, Universidad Autónoma de Barcelona, Bellaterra, Barcelona, Spain
› Author Affiliations
Further Information

Publication History

Received:03 April 2009

Accepted:19 February 2010

Publication Date:
17 December 2017 (online)

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Summary

Intra- and extra-articular primary synovial chondromatosis (SC) was observed in a five-year-old, entire male German Shepherd. Thousands of small cartilaginous nodules were removed from the stifle joint as well as from several adjacent muscles. Diagnosis of SC was established based on clinical, radio-graphic and biopsy results. The owner declined to have a new surgery performed for complete nodule removal and partial synovectomy. Nine months after the initial presentation, a proximal pathological intraarticular tibial fracture was observed and malignant transformation to chondrosarcoma was diagnosed after limb amputation. No metastasis was observed after 1.5 years of follow-up.