Abstract:
:Hyalinizing clear cell carcinoma (HCCC) is a recently described low-grade carcinoma of the salivary glands presenting two main histological features: clear neoplastic cells and prominent hyalinized stroma. Our aim was to characterize the composition of the hyalinized stroma in three cases of HCCC. An immuno-histochemical study using laminin and type I, III and IV collagens, fibronectin and tenascin antibodies was performed. In one case, electron microscopy study was also done. Collagen I and fibronectin were always present in tumoral stroma. Collagen III was documented in two cases and tenascin at the invasive front of the neoplasm. Collagen IV and laminin were found around neoplastic cells but not at the interstitial stroma. Foci of basal lamina reduplication and large deposits of long space collagen were observed in EM. This study demonstrates that the hyalinized stroma of HCCC is not formed by the accumulation of basement membrane-type material since it is mostly composed by collagen I and fibronectin.
journal_name
Oral Oncoljournal_title
Oral oncologyauthors
Félix A,Rosa JC,Nunes JF,Fonseca I,Cidadão A,Soares Jdoi
10.1016/s1368-8375(01)00072-0subject
Has Abstractpub_date
2002-06-01 00:00:00pages
364-8issue
4eissn
1368-8375issn
1879-0593pii
S1368837501000720journal_volume
38pub_type
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