Special AT-rich sequence-binding protein 2 (SATB2) in the differential diagnosis of osteogenic and non-osteogenic bone and soft tissue tumors.

Autor:	Milton S; Departments of Pathology, Christian Medical College Vellore, Tamil Nadu, India., Prabhu AJ; Departments of Pathology, Christian Medical College Vellore, Tamil Nadu, India., Titus VTK; Departments of Orthopaedics, Christian Medical College Vellore, Tamil Nadu, India., John R; Departments of Paediatric Oncology and Haematology, Christian Medical College Vellore, Tamil Nadu, India., Backianathan S; Departments of Radiotherapy, Christian Medical College Vellore, Tamil Nadu, India., Madhuri V; Departments of Paediatric Orthopaedics, Christian Medical College Vellore, Tamil Nadu, India.
Jazyk:	angličtina
Zdroj:	Journal of pathology and translational medicine [J Pathol Transl Med] 2022 Sep; Vol. 56 (5), pp. 270-280. Date of Electronic Publication: 2022 Sep 13.
DOI:	10.4132/jptm.2022.07.11
Abstrakt:	Background: The diagnosis of osteosarcoma (OSA) depends on clinicopathological and radiological correlation. A biopsy is considered the gold standard for OSA diagnosis. However, since OSA is a great histological mimicker, diagnostic challenges exist. Immunohistochemistry (IHC) can serve as an adjunct for the histological diagnosis of OSA. Special AT-rich sequence-binding protein 2 (SATB2) was recently described as a reliable adjunct immunohistochemical marker for the diagnosis of OSA. Methods: We investigated the IHC expression of SATB2 in 95 OSA and 100 non-osteogenic bone and soft tissue tumors using a monoclonal antibody (clone EPNCIR30A). The diagnostic utility of SATB2 and correlation with clinicopathological parameters were analyzed. Results: SATB2 IHC was positive in 88 out of 95 cases (92.6%) of OSA and 50 out of 100 cases (50.0%) of primary non-osteogenic bone and soft tissue tumors. Of the 59 bone tumors, 37 cases (62.7%) were positive for SATB2, and of the 41 soft tissue tumors, 13 cases (31.7%) were positive for SATB2. The sensitivity of SATB2 as a diagnostic test was 92.6%, specificity 50%, positive predictive value 63.8%, and negative predictive value 87.7%. Conclusions: Although SATB2 is a useful diagnostic marker for OSA, other clinical, histological and immunohistochemical features should be considered for the interpretation of SATB2.
Databáze:	MEDLINE
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