Get latest articles and stories on Health at LatestLY. According to a recent study from the University of Gothenburg, the immunosuppressive medicine methotrexate (MTX) has been linked to an increased risk of three forms of skin cancer. Patients using the medicine have moderate to severe psoriasis; nonetheless, a risk increase for basal cell carcinoma was only detected in this patient group. Health News | Methotrexate Use is Linked to an Increased Risk of Skin Cancer: Study.