Cell proliferation patterns in canine infundibular keratinizing acanthoma and well differentiated squamous cell carcinoma of the skin

Submitted: 9 January 2010
Accepted: 9 January 2010
Published: 9 January 2009
Abstract Views: 685
PDF: 795
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The aim of the present study was to investigate if the evaluation of cell proliferation of the well differentiated squamous cell carcinoma (WDSCC) and infundibular keratinizing acanthoma (IKA) could be useful in the differential diagnosis between these two tumours. Eighteen IKAs and ten WDSCCs were selected for this study. Two different methods were used to assess the activity of cell proliferation: MIB1 immunohistochemical detection and AgNOR proteins silver staining. The quantification of proliferative parameters was performed by means of an image analyzer and expressed as MIB1 index and AgNOR area (MNORA). Both MIB1 immunohistochemical and AgNOR histochemical patterns were different in WDSCC and IKA; moreover analysis of variance showed a significant difference for both parameters employed (MIB1 index, MNORA) between WDSCC and IKA (P<0.003 for MIB1 index; P<0.0001 for AgNOR area). The results show that canine WDSCC and IKA have a different proliferative behaviour and the assessment of cell proliferation can be considered as a useful adjunctive tool to the histopathological investigation in the differential diagnosis of these tumours.

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Della Salda, L., Preziosi, R., Mazzoni, M., & Marcato, P. (2009). Cell proliferation patterns in canine infundibular keratinizing acanthoma and well differentiated squamous cell carcinoma of the skin. European Journal of Histochemistry, 46(2), 165–72. https://doi.org/10.4081/1666