Ringed sideroblasts (type III) are seen in what MDS classification?

Question

Quizplus · Accepted Answer

Ringed sideroblasts (type III) are a defining feature of refractory anemia with ringed sideroblasts (RARS), which is a subtype of MDS. Choice A (RA) is a subtype of MDS but does not have ringed sideroblasts as a defining feature. Choice B (RAEB) and Choice C (RAEB-T) are subtypes of MDS but can have ringed sideroblasts as well as other defining features, such as blasts in the bone marrow or peripheral blood. Thus, the presence of ringed sideroblasts alone does not differentiate between these subtypes, but their absence would eliminate the possibility of RARS. Therefore, the correct answer is D (RARS).

Ringed Sideroblasts (Type III) Are Seen in What MDS Classification