A patient with chronic inflammatory demyelinating polyneuropathy (CIDP) established by biopsy developed cauda equina symptoms due to swelling of the nerve roots in the lumbar spinal canal. Magnetic resonance imaging of the lumbar spine showed profoundly thickened nerve roots from the level of the conus medullaris, filling the caudal thecal sac. Immunosuppressant treatment produced partial clini...

A full-term infant with an uncomplicated vaginal delivery presented with absent cry on routine newborn heelstick testing. Neurologic examination revealed paraplegia, absent reflexes, and a T4 sensory level. Spinal MRI showed an expansive, gadolinium-enhancing intramedullary mass from T2 to the thecal sac (figure, A and B). Biopsy confirmed a diagnosis of cellular schwannoma, WHO grade 1 (figure...

We describe the inadvertent subdural insertion of a lumbar extradural catheter in a primiparous woman in labour. A small quantity of local anaesthetic resulted in extensive motor and sensory block. Computed tomography performed after contrast injection demonstrated unequivocally that the catheter was in the subdural space. The catheter and injected fluid produced considerable displacement of th...

A 51-year-old man with a 1-month history of lower back pain and radiating pain visited to our pain clinic. A magnetic resonance imaging (MRI) scan demonstrated a cyst like mass at the level of the L4-5 interspace and compression of the thecal sac and the nerve root on the right side. We performed percutaneous needle aspiration of the lumbar zygapophyseal joint synovial cyst under fluoroscopic g...

Abstract Background Lumboperitoneal (LP) shunts have been described as a safe and effective option for idiopathic intracranial hypertension (IIH). However, it had many complications, including migration. Herein, we report our experience regarding the incidence, different sites, presentation, management of LP shunt migration in patients with IIH. Patients methods This retrospective series review...

Dinophysoids are a group of thecate dinoflagellates with a very distinctive thecal plate arrangement involving a sagittal suture: the so-called dinophysoid tabulation pattern. Although the number and layout of the thecal plates is highly conserved, the morphological diversity within the group is outstandingly high for dinoflagellates. Previous hypotheses about character evolution within dinophy...