title: Hook sign and arthritis in refractory anaemia with ringed sideroblasts (myelodysplastic syndrome).
authors.forename: Matthew
authors.initials: M
authors.lastname: Stride
authors.forename: Tanya
authors.initials: T
authors.lastname: Baqai
authors.forename: Ali S M
authors.initials: AS
authors.lastname: Jawad
mesh_terms: D000368:Aged; D000753:Anemia, Refractory / Q000150:complications*; D000756:Anemia, Sideroblastic / Q000150:complications*; D001168:Arthritis / Q000209:etiology*; D006801:Humans; D019190:Iron Overload / Q000150:complications; D008297:Male; D008662:Metacarpophalangeal Joint / Q000000981:diagnostic imaging; D011859:Radiography