A curious case of yellow nail syndrome.

The Yellow Nail Syndrome is a rare clinical entity, first described in 1967 by P.D. Samman and W.F. White. The triad slow-growing dystrophic yellow nails, lymphedema and chronic respiratory disorders is the typical manifestation of the disease but some variations have been described as well as associations with chylothorax, chylous ascites, intestinal lymphangiectasia, thyroid abnormalities, malignancies and immunoglobulin A (IgA) deficiency. We present a case of a 55-years-old woman that had an insidious onset of respiratory disorders and chronic sinusitis, suspected to be infectious throughout the hospitalizations, associated with therapeutically neglected autoimmune thyroiditis.