FIGURE LEGENDS:
Figure 1: Representative blood films and bone marrow aspirate samples (600x) obtained from both twins prior to parenteral iron supplementation therapy. The upper and lower rows of images relate to twin #1 and twin #2 respectively.
(A, B) Blood films from both twins show profound hypochromic erythrocytes with anisopoikilocytosis, occasional pencil cells and elliptocytes. (C, D) Bone marrow aspirate smears show normal trilineage haematopoiesis with corresponding (E, F) absent iron stores.