<prompt> Comment on the diagnosis of this patient with hypokalemic periodic paralysis.RhinophymaBuphthalmosGraves diseasePheochromocytoma  <response>: Ans. c Graves disease. Thyrotoxicosis is sometimes associated with a form of hypokalemic periodic paralysis; this disorder is particularly common in Asian males with thyrotoxicosis. Lid retraction, causing a staring appearance, can occur in any form of thyrotoxicosis and is the result of sympathetic overactivity. However, Graves disease is associated with specific eye signs that comprise Graves ophthalmopathy Many scoring systems have been used to gauge the extent and activity of the orbital changes in Graves disease. The NO SPECS scheme is an acronym derived from the following eye changes:0 No signs or symptoms1 Only signs lid retraction or lag, no symptoms2 Soft-tissue involvement periorbital edema3 Proptosis 22 mm4 Extraocular-muscle involvement diplopia5 Corneal involvement6 Sight loss 