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  • Title: [Microstructure of subcutaneous lesions in juvenile hyaline fibromatosis].
    Author: Adamicová K, Fetisovová Z, Mellová Y, Statelová D, Hutka Z.
    Journal: Cesk Patol; 1998 Jul; 34(3):99-104. PubMed ID: 9750422.
    Abstract:
    Juvenile hyaline fibromatosis is a rare autosomal recessive interstitial disease characterized by nodes and tumours of skin and soft tissues as well as by gingival hyperplasia. The authors described a case of 28-year-old male based on histopathological diagnosis. The patient was admitted to the hospital thrice in his life with the diagnosis of arthrogryphosis. Last time he presented with extensive secondary impetigo in extremities and pachydermia, polymalformation syndrome, multiple subcutaneous tumours, gingival hypertrophy, contractures, osteolytic lesions and positive family history. In histology, tumoriform lesions showed a structureless hyaline matrix often with chondroosseous metaplasia and calcium salts. More or less numerous cells in the matrix had a fibroblastoid appearance with eosinophilic cytoplasm, oval nuclei and frequently pericytoplasmic halo. Electron microscopy revealed dilated cisterns of rough endoplasmic reticulum and a hypertrophied Golgi apparatus. Particles representing calcium salts according to their density were rare. Immunohistochemistry of tumour cells showed vimentin, alpha-1-antichymotrypsin and alpha-1-antitrypsin. The findings concurred with the literature in which, nevertheless, the immunohistochemical picture were not mentioned.
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