Refractory cytopenias with unilineage dysplasia (RCUD) is a frequent low-risk subtype of myelodysplastic syndrome (MDS; see this term) characterized by refractory cytopenias associated with dysplasia limited to one cell lineage.
Raised, well-circumscribed areas of erythema and edema involving the dermis and epidermis. Urticaria is intensely pruritic, and blanches completely with pressure.