title: Collagen fibres in the wall of odontogenic keratocysts: a study with picrosirius red and polarizing microscopy.
abstract: The collagen in the walls of 15 keratocysts was studied histochemically by staining sections with picrosirius red and examining them with polarizing microscopy. This was compared to 15 cases of dentigerous cyst and 15 cases of radicular cyst. Polarization colours of the collagen fibres were recorded according to their width. No differences were found between the polarization colours of thin fibres (<0.8 microm) in all three lesions; the polarization colours of thick fibres (1.6-2.4 microm) in keratocysts were significantly more greenish-yellow when compared with those of dentigerous cysts and radicular cysts. The staining of the collagen fibres in the keratocysts is similar to that reported in odontogenic neoplasms, which suggests that the stroma of keratocysts could be regarded not just as a structural support of the cyst wall, but as playing a part in the neoplastic behaviour of the cyst.
authors.affiliation: Department of Oral Pathology and Oral Medicine, The Maurice and Gabriela Goldschleger School of Dental Medicine, Tel Aviv University, Israel.
authors.forename: A
authors.initials: A
authors.lastname: Hirshberg
authors.forename: S
authors.initials: S
authors.lastname: Sherman
authors.forename: A
authors.initials: A
authors.lastname: Buchner
authors.forename: D
authors.initials: D
authors.lastname: Dayan
mesh_terms: D000704:Analysis of Variance; D001391:Azo Compounds; D002462:Cell Membrane / Q000473:pathology; D003094:Collagen / Q000032:analysis; D004396:Coloring Agents; D003803:Dentigerous Cyst / Q000473:pathology; D006801:Humans; D008859:Microscopy, Polarization; D009807:Odontogenic Cysts / Q000473:pathology*; D010851:Picrates; D011842:Radicular Cyst / Q000473:pathology; D018709:Statistics, Nonparametric
chemical_list: D001391:Azo Compounds; D004396:Coloring Agents; D010851:Picrates; C009798:C.I. direct red 80; D003094:Collagen