Σφακιανάκης Αλέξανδρος
ΩτοΡινοΛαρυγγολόγος
Αναπαύσεως 5 Άγιος Νικόλαος
Κρήτη 72100
00302841026182
00306932607174
alsfakia@gmail.com

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Παρασκευή 4 Ιανουαρίου 2019

Frequent TLE1 Expression in Cutaneous Neoplasms

imageAbstract: TLE1 immunohistochemistry is widely used as a biomarker for synovial sarcoma. Recently, we identified TLE1 expression in a subset of melanomas and noted staining in sebaceous glands and follicular epithelium. TLE1 immunohistochemistry has not been well studied in cutaneous tumors. The aim was to investigate TLE1 expression in sebaceous neoplasms, basal cell carcinoma (BCC), and squamous cell carcinoma (SCC) to determine whether the staining patterns may aid in the diagnosis or classification of these neoplasms. TLE1 immunohistochemistry was performed on sebaceous adenoma (n = 26), sebaceoma (n = 10), sebaceous carcinoma (n = 19), BCC (n = 20), and SCC (n = 19). Positivity was defined as dark-brown nuclear staining and graded as 3+ (strong staining of >50% of cells at 4×), 2+ (moderate staining of 10–50% of cells at 4× or >50% of cells staining at 10×), and 1+ (weak staining of

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