title: Iatrogenic drop metastasis of recurrent meningioma in a vascularized free omental flap--case report.
abstract: A 62-year-old woman presented with drop metastasis of recurrent meningioma located in a vascularized free omental flap. She had undergone three resections of right sphenoid ridge meningioma in another hospital beginning in 1979. Invasive recurrent tumor in the infratemporal fossa was grossly totally removed and the defect was reconstructed with a vascularized free omental flap in our institute in 1999. Magnetic resonance imaging revealed a well-demarcated tumor in the omental flap in 2003. Histological examination showed meningothelial meningioma with Ki-67 labeling index of 2.5%. Surgeons should be aware of the possibility of drop metastasis if the tumor type has a tendency to local recurrence.
authors.affiliation: Department of Neurosurgery, Fukushima Medical University, Fukushima, Japan.
authors.forename: Masahiro
authors.initials: M
authors.lastname: Ichikawa
authors.forename: Kiyoshi
authors.initials: K
authors.lastname: Saito
authors.forename: Eiji
authors.initials: E
authors.lastname: Ito
authors.forename: Kumi
authors.initials: K
authors.lastname: Kawai
authors.forename: Yasushi
authors.initials: Y
authors.lastname: Fujimoto
authors.forename: Yuzuru
authors.initials: Y
authors.lastname: Kamei
mesh_terms: D014408:Biomarkers, Tumor / Q000032:analysis / Q000378:metabolism; D004847:Epithelial Cells / Q000469:parasitology; D005260:Female; D006801:Humans; D007049:Iatrogenic Disease; D019394:Ki-67 Antigen / Q000032:analysis / Q000378:metabolism; D008279:Magnetic Resonance Imaging; D008577:Meningeal Neoplasms / Q000473:pathology* / Q000503:physiopathology / Q000601:surgery*; D008579:Meningioma / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery*; D008875:Middle Aged; D009362:Neoplasm Metastasis / Q000473:pathology* / Q000503:physiopathology / Q000517:prevention & control; D009364:Neoplasm Recurrence, Local; D009366:Neoplasm Seeding; D009852:Omentum / Q000473:pathology / Q000601:surgery / Q000637:transplantation; D011183:Postoperative Complications / Q000209:etiology / Q000473:pathology / Q000503:physiopathology; D011859:Radiography; D019292:Skull Base Neoplasms / Q000473:pathology / Q000503:physiopathology / Q000601:surgery; D013524:Surgical Flaps / Q000473:pathology*
chemical_list: D014408:Biomarkers, Tumor; D019394:Ki-67 Antigen