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Article
Open AccessQuality control material for the detection of somatic mutations in fixed clinical specimens by next-generation sequencing
Targeted next generation sequencing (NGS) technology to assess the mutational status of multiple genes on formalin-fixed, paraffin embedded (FFPE) tumors is rapidly being adopted in clinical settings, where qu...
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Article
Granular Cell Tumor of the Cervical Esophagus: Case Report and Literature Review of an Unusual Cause of Dysphagia
Granular cell tumors (GCT) of the head and neck are not uncommon; however, involvement of the cervical esophagus is rare. Characterized by an infiltrative growth pattern, these benign tumors are historically d...
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Article
Sinonasal Eosinophilic Angiocentric Fibrosis: A Report of Four Cases and Review of Literature
Eosinophilic angiocentric fibrosis (EAF) is a rare, benign condition of unknown etiology involving the sinonasal tract and the upper respiratory airways, and rarely, larynx, and orbit. We report four cases of ...
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Article
Transitional cell carcinoma arising in a pyelocaliceal cyst
The differentiation between benign and malignant cystic lesions of the kidney is a diagnostic challenge. Medical imaging aids in this task, but many cystic renal lesions require further work-up, frequently by...