Anatomic pathology selected abstracts
May 2023—Although criteria for malignancy have been established for glomus tumors of soft tissue, no accepted criteria exist for gastroesophageal glomus tumors, which are considered to behave unpredictably. Benign and aggressive gastroesophageal glomus tumors have been shown to harbor CARMN::NOTCH2 fusions, but genetic features that predict clinical behavior have not been identified. The authors conducted a study in which they evaluated 26 gastroesophageal glomus tumors to investigate histologic and genetic features that may predict malignancy. Seventeen of the 26 (65 percent) patients were male. The median age at presentation was 54.5 years (range, 16–81 years).