Indeed, Masson-Trichrome and picrosirius red staining showed high levels of collagens adjacent to the carcinomas and immunohistochemistry validated increased levels of Laminin β1, Laminin γ1, Fibronectin, Periostin and Tenascin C, most of which showed a discrete pattern adjacent to the carcinomas. The gene discussed is POSTN; the disease is carcinoma.