title: Sponge-induced granuloma ("gauzoma") as a complication of posterior lumbar surgery.
abstract: A 45-year-old woman presented with complaints of low back pain and sciatica on the left persisting for 2 years. She had undergone left hemilaminectomy and discectomy for L4-5 intervertebral disc herniation at another medical center. Spinal computed tomography and magnetic resonance (MR) imaging revealed a mass lesion in the posterior paravertebral region. The mass was hypointense with ring enhancement on the T(1)-weighted images and hyperintense on the T(2)-weighted images. Surgery found a retained sponge within the paraspinal mass cavity which was removed totally. Foreign-body granuloma ("gauzoma") induced by forgotten sponge material is not an unusual complication of posterior lumbar surgery and should be considered as a potential cause in cases of surgical wound infections. MR imaging is essential to achieve the correct differential diagnosis.
authors.affiliation: Neurosurgery Department, Adnan Menderes University Hospital, Aydin, Turkey. drmturgut@yahoo.com
authors.forename: Mehmet
authors.initials: M
authors.lastname: Turgut
authors.forename: Orhan
authors.initials: O
authors.lastname: Akyüz
authors.forename: Yelda
authors.initials: Y
authors.lastname: Ozsunar
authors.forename: Füruzan
authors.initials: F
authors.lastname: Kacar
mesh_terms: D017586:Diskectomy / Q000009:adverse effects* / Q000295:instrumentation; D005260:Female; D015745:Granuloma, Foreign-Body / Q000209:etiology* / Q000473:pathology / Q000601:surgery; D006801:Humans; D007796:Laminectomy / Q000009:adverse effects* / Q000295:instrumentation; D008159:Lumbar Vertebrae / Q000601:surgery; D008875:Middle Aged; D015503:Surgical Sponges / Q000009:adverse effects*