GATA3 and malignant mesothelioma: However, GATA3 is non‐specific with variably reported positive expression rates in many neoplasms, including pancreatic adenocarcinoma, salivary gland neoplasms, malignant mesothelioma, squamous cell carcinomas of various sites, a subset of renal neoplasms such as ChRCC, choriocarcinoma and pheochromocytoma/paragangliomas.2