title: Fine needle aspiration cytology diagnosis of extramedullary haematopoiesis presenting as a pre-sacral mass: a pitfall avoided.
authors.forename: P K
authors.initials: PK
authors.lastname: Wright
authors.forename: S A
authors.initials: SA
authors.lastname: Thiryayi
authors.forename: D N
authors.initials: DN
authors.lastname: Rana
mesh_terms: D000368:Aged; D044963:Biopsy, Fine-Needle; D003937:Diagnosis, Differential; D005260:Female; D006411:Hematopoiesis, Extramedullary; D006801:Humans; D012447:Sacrum / Q000473:pathology*; D013125:Spinal Neoplasms / Q000175:diagnosis* / Q000473:pathology*