<prompt> Fanconis anemia is a:Constitutional anemiaHemolytic anemiaIron deficiency anemiaAuto-immune anemia  <response>: a. Constitutional anemiaRef: Nelsons 20e p 2390-2392, Ghai 8e p 349-351Constitutional pancytopenia is defined as decreased marrow production of the 3 major hematopoietic lineages on an inherited basis, resulting in anemia, neutropenia and thrombocytopenia. Important causes are:Fanconi anemiaAmegakaryocytic thrombocytopeniaShwachman-Diamond syndromeDown syndromeDyskeratosis congenitaNoonan syndrome 