[Thyroid hemiagenesis associated with Flajani's disease and papillary carcinoma. A case report]

Non-development of a thyroid lobe is a rare abnormality. The condition is normally diagnosed incidentally in the course of investigations performed for the coexistence of pathological conditions and/or functional disorders of the gland. We report a case of thyroid hemiagenesis in a patient suffering from Flajani's disease whom we submitted to total thyroidectomy due to the simultaneous presence of a papillary carcinoma. In the context of a condition such as thyroid hemiagenesis which is in itself a rare occurrence, there are very few reports of cases in which the dysgenesis is associated with Flajani's disease. The coexistence of thyroid hemiagenesis, Flajani's disease and papillary carcinoma is truly exceptional and has never been reported in the literature.