Medical Syndromes A-Z: In-Depth Look at D-Named Health Conditions Explore our comprehensive guide to medical syndromes beginning with 'D'. Discover key information on diagnosis, treatment, and prognosis for D-named disorders. Syndromes Starting with "D" Dandy–Walker Syndrome De Quervain Syndrome Delayed Sleep Phase Syndrome Down Syndrome Dubin–Johnson Syndrome Duane Syndrome Dysautonomia Syndrome Dyskeratosis Syndrome Diabetic Stiff Hand Syndrome Da Costa's Syndrome Dercum's Syndrome Desbuquois Syndrome Dientamoeba Fragilis Syndrome De Barsy Syndrome Dejerine–Roussy Syndrome DiGeorge Syndrome Dravet Syndrome Dubowitz Syndrome Dumping Syndrome Dysexecutive Syndrome Dystonia Syndrome Dialysis Disequilibrium Syndrome Dressler Syndrome Dolichocolon Syndrome Donohue Syndrome