title: Iatrogenic spinal epidermoid cyst after lumbar puncture using needles with stylet.
abstract: Iatrogenic spinal epidermoid tumors are extremely rare and may be caused by implanted skin fragments in the spinal canal, most commonly due to lumbar punctures using hollow needles without a stylet. The authors report for the first time an iatrogenic spinal epidermoid tumor that developed 26 months after several lumbar punctures, performed using disposable spinal needles with stylet, in an 8-year-old boy with persistent lower back pain. The authors hypothesize that an ill-fitting stylet compounded by multiple therapeutic lumbar punctures and young age as possible risk factors for the development of the tumor in the present case. A total excision of the tumor with laminectomy yielded good symptomatic recovery.
authors.affiliation: Divisions of Hematology-Oncology and Stem Cell Transplantation, Cohen Children's Medical Center of New York, 269-01 76th Avenue, New Hyde Park, NY 11040, USA.
authors.forename: Magimairajan
authors.initials: M
authors.lastname: Issaivanan
authors.forename: Sandra
authors.initials: S
authors.lastname: Cohen
authors.forename: Mark
authors.initials: M
authors.lastname: Mittler
authors.forename: Alan
authors.initials: A
authors.lastname: Johnson
authors.forename: Morris
authors.initials: M
authors.lastname: Edelman
authors.forename: Arlene
authors.initials: A
authors.lastname: Redner
mesh_terms: D001416:Back Pain / Q000150:complications / Q000209:etiology*; D002648:Child; D004814:Epidermal Cyst / Q000150:complications / Q000209:etiology*; D006801:Humans; D007049:Iatrogenic Disease; D008297:Male; D009339:Needles; D054198:Precursor Cell Lymphoblastic Leukemia-Lymphoma / Q000150:complications*; D013129:Spinal Puncture / Q000009:adverse effects*