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Clinicopathologic and immunohistochemical features of pigmented Basal cell carcinomas of the eyelids.
Am J Ophthalmol
February 2012
David G. Cogan Ophthalmic Pathology Laboratory, Massachusetts Eye and Ear Infirmary, Room 321, 243 Charles St, Boston, MA 02114, USA.
Purpose: To describe the clinical and microscopic features of pigmented basal cell carcinomas (pBCC) of the eyelid.
Design: Retrospective observational case series collected at one institution.
Methods: An analysis of clinical records, photographs, and histopathologic characteristics of 257 BCCs with a review of the literature.
Multiple antigen immunostaining procedures.
Methods Mol Biol
February 2010
1st Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary.
Detection of multiple antigens in the same tissue section can be done by combining a range of immunohisto/cytochemical techniques based either on light microscopic chromogenic precipitates or fluorochrome labeling. Light microscopic techniques preferred for this purpose use combinations of immunogold silver staining (black precipitate), immunoperoxidase, immunoalkaline phosphatase and immunogalactosidase methods using chromogens of different colors. Fluorochrome labels favored for these combinations include AMCA (blue), FITC (green), rhodamine (orange-red) and Cy5 (far red), their matching synthetic members from the Alexa series, or quantum dots.
View Article and Find Full Text PDFMorphological, cytochemical, and ultrastructural study of thrombocytes and leukocytes in neotropical fish, Brycon orbignyanus Valenciennes, 1850 (Characidae, Bryconinae).
J Submicrosc Cytol Pathol
September 2007
Institute of Health and Biotechnology, Federal University of Amazonas (UFAM), Coari, AM, Brazil.
Morphological, cytochemical and ultrastructural studies are important to demonstrate the function of the blood cells, which is very little understood in teleosts. In peripheral blood of 'piracanjuba' Brycon orbignyanus, thrombocytes, lymphocytes, monocytes, neutrophils and heterophils were studied and characterized. Thrombocytes had a fusiform or oval shape with PAS-positive granules.
View Article and Find Full Text PDFInhibition of orthodontically induced root resorption with echistatin, an RGD-containing peptide.
Am J Orthod Dentofacial Orthop
February 2006
Orthodontic Division, Department of Preventive Dentistry, King Saud University, Riyadh, Saudi Arabia.
Introduction: Induced dental root resorption is a common side effect of orthodontic treatment. It is an unpredictable phenomenon, and its etiology is unknown. Odontoclasts responsible for the resorption of the dental tissues--ie, cementum and dentin--share many cytochemical and morphological characteristics with osteoclasts, which are responsible for bone resorption.
View Article and Find Full Text PDFA structural and immunocytochemical study of palatine and labial salivary glands from chronic alcoholics.
Acta Odontol Latinoam
July 2004
Departament B of Histology and Embryology, Faculty of Dentistry, National University of Córdoba, Argentina.
In the present study we investigated tissue changes in palatine (PG) and labial (LG) minor salivary glands from individuals who had died of alcoholic hepatic cirrhosis, to characterize histopathological parameters of alcoholic sialosis, that may be used for differential diagnosis. Samples obtained from autopsies were processed using cytochemical techniques for mucosubstances and immunocytochemical labelling for cytokeratines, PS 100 and T-cells. Both PG and LG showed dilated excretory ducts with atrophic epithelium, which contained PAS+ metachromatic material and detached cells.
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