research Inducible ß-Catenin Activation and PTEN Inactivation Elicit Follicular Tumours, Not Papillomas: A Potential Paradigm for Trichilemmomas in Cowden’s Disease
This study found that in mice with deregulated β-catenin and PTEN signaling, increased follicular hyperplasia and sebaceous gland changes occur, but typical papillomas do not develop, potentially due to p21 response and reduced stem cell markers.


