title: [Sacral metastasis simulating aneurysmal bone cyst].
abstract: Cystic spinal lesions with characteristic patterns, such as the presence of haematic fluid-fluid levels (H-FFL), have been associated with many tumoral lineages, more frequently with aneurysmal bone cyst (ABC) and exceptionally with metastasis. We present the case of a 60-year-old man with the finding of a sacral cystic bone lesion with H-FFL, with initial suspicion of ABC and confirmed diagnosis of metastasis. The case presented is, to our knowledge, the second case published of spinal cystic bone metastasis with H-FFL pattern with unknown primary tumour at the time of diagnosis and the only one that received resective surgical treatment, achieving pulmonary and metastatic disease control with good quality of life after 1 year of follow up.
authors.affiliation: Departamento de Neurocirugía, Hospital Universitario y Politécnico La Fe, Valencia, España. Electronic address: sanroman.alvarez@gmail.com.
authors.forename: Pablo
authors.initials: P
authors.lastname: Sanromán-Álvarez
authors.affiliation: Departamento de Neurocirugía, Hospital Universitario y Politécnico La Fe, Valencia, España.
authors.forename: Juan Antonio
authors.initials: JA
authors.lastname: Simal-Julián
authors.affiliation: Departamento de Neurocirugía, Hospital Universitario y Politécnico La Fe, Valencia, España.
authors.forename: Pablo
authors.initials: P
authors.lastname: Miranda-Lloret
authors.affiliation: Departamento de Neurocirugía, Hospital Universitario y Politécnico La Fe, Valencia, España.
authors.forename: Pedro
authors.initials: P
authors.lastname: Pérez-Borredá
authors.affiliation: Departamento de Neurocirugía, Hospital Universitario y Politécnico La Fe, Valencia, España.
authors.forename: Carlos
authors.initials: C
authors.lastname: Botella-Asunción
mesh_terms: D000970:Antineoplastic Agents / Q000627:therapeutic use; D001416:Back Pain / Q000209:etiology; D001845:Bone Cysts / Q000209:etiology* / Q000473:pathology; D017824:Bone Cysts, Aneurysmal / Q000175:diagnosis*; D002294:Carcinoma, Squamous Cell / Q000175:diagnosis / Q000473:pathology / Q000556:secondary* / Q000628:therapy; D003131:Combined Modality Therapy; D003937:Diagnosis, Differential; D003951:Diagnostic Errors; D004621:Embolization, Therapeutic; D006801:Humans; D008159:Lumbar Vertebrae / Q000473:pathology* / Q000601:surgery; D008175:Lung Neoplasms / Q000473:pathology; D008297:Male; D008875:Middle Aged; D038361:Neuronavigation; D010166:Palliative Care; D018714:Radiotherapy, Adjuvant; D012447:Sacrum / Q000473:pathology* / Q000601:surgery; D013123:Spinal Fusion; D013125:Spinal Neoplasms / Q000175:diagnosis / Q000473:pathology / Q000556:secondary* / Q000628:therapy
chemical_list: D000970:Antineoplastic Agents
keywords: 3D fluoroscopy; Aneurysmal bone cyst; Bone metastasis; Fluid-fluid levels; Fluoroscopio 3D; Imagen en resonancia magnética; Magnetic resonance imaging; Metástasis ósea; Niveles serohemáticos; Quiste óseo aneurismático; Resultado quirúrgico; Surgical outcome