Translocations involving FN1 gene have been described in several tumours, which share the presence of a cartilaginous matrix with or without calcifications and a good prognosis. They encompass: soft tissue chondroma, synovial chondromatosis, calcifying aponeurotic fibroma, phosphaturic mesenchymal tumour and a new spectrum of tumours: "the calcified chondroid mesenchymal neoplasms". We review all the clinical, histopathological and molecular data of these tumours and discuss the differential diagnoses.
Keywords: Calcified chondroid mesenchymal neoplasms; Calcifying aponeurotic fibroma; Chondromatose synoviale; Chondrome; FN1; Fibrome aponévrotique calcifiant; Phosphaturic mesenchymal tumour; Soft tissue chondroma; Synovial chondromatosis; Tumeur phosphaturique mésenchymateuse; Tumeurs mésenchymateuses chondroïdes et calcifiées.
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