Indonesian Journal of Cancer
Vol 15, No 3 (2021): September

Does Lack of EWSR1-ATF1 Fusion Exclude Diagnosis of Salivary Gland Clear Cell Carcinoma?

Sibel Sensu (Pathology Department, Medical Faculty, Istinye University, Istanbul)
Nusret Erdogan (Clinical Pathology Department, University of Health Sciences Kartal Dr. Lutfi Kirdar Education and Research Hospital, Istanbul)
Kayhan Basak (Clinical Pathology Department, University of Health Sciences Kartal Dr. Lutfi Kirdar Education and Research Hospital, Istanbul,)
Egzona Qipa (Medical Genetics Department, Istinye University, Istanbul)
Murat Buyukdogan (Genetics Diagnosis Center, DONEGEN, Istanbul)



Article Info

Publish Date
22 Oct 2021

Abstract

Introduction: Ewing sarcoma breakpoint region 1- activating transcription factor 1 (EWSR1-ATF1) fusion is mentioned as a diagnostic marker in favor of clear cell carcinoma in the differential diagnosis of clear cell neoplasms of salivary glands. However, in literature, its positivity is reported between 82% and 93%. In salivary glands, various benign and malignant primary tumors, as well as odontogenic neoplasms and metastatic cases, present with a varied number of clear cells. Clear cell carcinoma of the salivary gland is a rare entity with distinct histochemistry and immunohistochemistry features.Case Presentation: We present a clear cell carcinoma of the salivary gland showing cytoplasmic Periodic acid–Schiff (PAS) (+), mucin (-) staining, cytokeratin (CK), CK7, and P63 immunoreactivity without EWSR1-ATF1 fusion. Conclusions: We conclude that clinical, morphological, and immunohistochemical analyses should be the guide for diagnosis even though molecular analysis does not support it.

Copyrights © 2021






Journal Info

Abbrev

ijoc

Publisher

Subject

Biochemistry, Genetics & Molecular Biology Immunology & microbiology Medicine & Pharmacology Public Health

Description

Indonesian Journal of Cancer is a peer-reviewed and open-access journal. This journal is published quarterly (in March, June, September, and December) by Dharmais Cancer Hospital - National Cancer Center. Submissions are reviewed under a broad scope of topics relevant to experimental and clinical ...