Andrew J. Bauer, MD, is an endocrinologist and Medical Director of the Pediatric Thyroid Center at Children's Hospital of Philadelphia. Areas of expertise: Acquired hypothyroidism (Hashimoto's thyroidism), Autonomously functioning nodules, Congenital hypothyroidism, DICER1-PPB familial tumor predisposition syndrome, Familial thyroid cancer, Follicular thyroid cancer, Hyperthyroidism (Graves' disease), Inherited syndromes associated with increased risk of thyroid nodules and thyroid cancer, Multiple endocrine neoplasia, Papillary thyroid cancer, Pediatric thyroid disease, PTEN hamartoma syndrome, Thyroid hormone resistance, Thyroid nodules, Thyroid transport defects, Thyroid cancer