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Comparison of hematoxylin and eosin stain with modified Gallego's Stain for differentiating mineralized components in ossifying fibroma, cemento-ossifying fibroma, and cementifying fibroma

 Department of Oral and Maxillofacial Pathology and Microbiology, D Y Patil Deemed to Be University School of Dentistry, Nerul, Navi Mumbai, Maharashtra, India

Correspondence Address:
Sandhya Tamgadge,
Department of Oral and Maxillofacial Pathology and Microbiology, D Y Patil Deemed to Be University School of Dentistry, Nerul, Navi Mumbai - 400 706, Maharashtra
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/JMAU.JMAU_2_19

Objective: The nature of calcifications in fibro-osseous lesions is difficult to differentiate under hematoxylin and eosin (H and E) stain and could be misleading. Special stains could be used. Modified Gallego's stain is a differential stain for hard tissues, which has been discussed recently in the literature. Methods: Retrospective study was done from June to December 2015 to differentiate various types of mineralized tissues in ossifying fibroma (OF), cemento-OF (COF), and cementifying fibroma (CF), using modified Gallego's stain and its correlation with H and E stain. Control group comprised of decalcified section of bone, tooth, and odontoma, stained with modified Gallego's stain. Study group comprised of 30 lesions (10 OF, 10 COF, and 10 CF) stained with both modified Gallego's stain and H&E stain. This study did not have any numerical data; therefore, no appropriate statistical test could be performed. Hence, cross tabulation of the categorical data was used followed by descriptive statistical analyses. Results were presented on continuous measurements using mean ± standard deviation, and results on categorical measurements were presented in number (%). Results: Modified Gallego's staining showed that, out of 10 cases of OF, 9 cases were interpreted as OF; one case of juvenile psammomatoid OF was interpreted as juvenile psammomatoid COF. Out of 10 cases of COF, 4 cases were interpreted as OF. Out of 10 cases of CF, 2 cases were interpreted as COF and 3 cases as OF. Conclusions: Fibro-osseous lesions are difficult to diagnose using H and E staining alone. Modified Gallego's stain could be a best adjunct.

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    -  Dhouskar S
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    -  Periera T
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