Definition:A brain disease that is characterized by the occurrance of at least two unprovoked seizures resulting from a persistent epileptogenic abnormality of the brain that is able to spontaneously generate paroxysmal activity and typically manifested by sudden brief episodes of altered or diminished consciousness, involuntary movements, or convulsions.
Definition:A cell type cancer that has_material_basis_in abnormally proliferating cells derives_from melanocytes which are found in skin, the bowel and the eye.
Definition:A disease that has_material_basis_in a genetic abnormality, error with embryonic development, infection or compromised intrauterine environment.
Definition:An orofacial cleft that is characterized by a congenital defect in the upper lip where the maxillary prominence fails to merge with the merged medial nasal prominences.
Definition:A diaphragm disease characterized by the lack of development of all or part of the diaphragm, which results in an abnormal opening that allows the stomach and intestines to move into the chest cavity and crowd the heart and lungs.
Definition:A connective tissue disease that is characterized by progressive ossification of skeletal muscle, fascia, tendons, and ligaments and has_material_basis_in heterozygous mutation in the ACVR1 gene.
Definition:A connective tissue disease characterized by ectopic ossification of the posterior longitudinal spinal ligament resulting in spinal cord compression, myelopathy and hyperreflexia.
Definition:A congenital heart septal defect characterized by an abnormal or inadequate fusion of the superior and inferior endocardial cushions with the mid portion of the atrial septum and the muscular portion of the ventricular septum, thus allowing extra blood to circulate the lungs.
Definition:A gastrointestinal system disease that is characterized by predisposition to hamartomatous benign polyps in the gastrointestinal tract, specifically in the stomach, small intestine, colon, and rectum.
Definition:A syndrome characterized by infantile onset of dermal ossification followed by progressive bone formation in skeletal muscle and deep fascia that has_material_basis_in heterozygous loss of function mutation in the Gs-alpha isoform of the GNAS gene on chromosome 20q13.32.