<prompt> Diabetes mellitus is present in all except-Fanconis anemiaNoonans syndromeAtaxia telangiectasiaMyotonic dystrophy  <response>: Type 1 diabetes Immune-mediated Idiopathic. Type 2 diabetes Other specific types Geneticdefectsofb-cellfunctionseeBox21.6 Geneticdefectsofinsulinactione.g.leprechaunism, lipodystrophies Pancreaticdiseasee.g.pancreatitis,pancreatectomy, neoplasticdisease,cysticfibrosis,haemochromatosis, f ibrocalculouspancreatopathy Excessendogenousproductionofhormonalantagoniststo insulin,e.g. Growthhormone-acromegaly Glucocoicoids-Cushingssyndrome Glucagon-glucagonoma Catecholamines-phaeochromocytoma Thyroidhormones-thyrotoxicosis Drug-inducede.g.coicosteroids,thiazidediuretics, phenytoin Uncommonformsofimmune-mediateddiabetese.g.IPEX immunodysregulationpolyendocrinopathyXsyndrome Associatedwithgeneticsyndromese.g.Downssyndrome; Klinefelterssyndrome;Turnerssyndrome;DIDMOAD Wolframssyndrome-diabetesinsipidus,diabetesmellitus, opticatrophy,nervedeafness;Friedreichsataxia;myotonic dystrophy. Gestational diabetes. DAVIDSONS PRINCIPLES AND PRACTICE OF MEDICINE 22ND EDITION PAGE NO-807 