Introduction: Intradural spinal cord tumors are uncommon with an incidence of 3 per 100,000 individuals. Multiple reports concerning intraspinal hematomas with neurologic deterioration following spinal needle insertion exist, but few reports have confirmed intraspinal hemorrhages from an undiagnosed lumbar ependymoma after attempted spinal anesthesia. Methods: A 22-year-old male with progressiv...

Key highlights: Tabular columns organized by anatomical abnormality include imaging findings and a summary of key clinical data that correlates to the images Congenital/developmental abnormalities, spinal deformities, and acquired pathologies in both children and adults Lesions organized by region including dural, intradural extramedullary, extra-dural, and sacrum More than 600 figures illustra...

Key highlights: Tabular columns organized by anatomical abnormality include imaging findings and a summary of key clinical data that correlates to the images Congenital/developmental abnormalities, spinal deformities, and acquired pathologies in both children and adults Lesions organized by region including dural, intradural extramedullary, extra-dural, and sacrum More than 600 figures illustra...

Intradural disc herniation (IDDH) is a rare complication of intervertebral disc disease and comprises 0.26-0.30% of all herniated discs, with 92% of them located in the lumbar region (1). We present a case of IDDH that presented with intermittent symptoms and signs of cauda equina compression. We were unable to find in the literature, any previously described cases of intermittent cauda equina ...

Several cases of accidental subdural injection have been reported, but only few of them are known to be accidental intradural injection during epidural block. Therefore we would like to report our experience of accidental intradural injection. A 68-year-old female was referred to our pain clinic due to severe metastatic spinal pain. We performed a diagnostic epidural injection at T9/10 interspa...

A 49 years old male patient who suffered from deterioration of posterior neck pain, left hand numbness, left lower limb pain and gait disturbance for 3 years visited our outpatient department. He had been diagnosed as non-dysraphic cervical intradural lipoma and operated in August 1990. On the radiologic images, we found the regrowth of non-dysraphic cervical intradural lipoma from C2 to C7 lev...

Conventional laminectomy is the most popular technique for the complete removal of intradural spinal tumors. In particular, the central portion intramedullary tumor and large intradural extramedullary tumor often require a total laminectomy for the midline myelotomy, sufficient decompression, and adequate visualization. However, this technique has the disadvantages of a wide incision, extensive...

A patient with dural sinus thrombosis had progressively worsening symptoms and signs that resolved after intradural thrombolysis. Intradural sinus pressures were 54 mm Hg. Echo-planar MR imaging revealed complex abnormalities of diffusion and widespread delay in mean transit time that improved immediately after thrombolysis. This case suggests that diffusion- and perfusion-weighted imaging can ...

that are believed to be hamartomatous proliferations of vascular endothelial cells. They are bright red to blue in color, sharply demarcated from the surrounding skin or mucosal tissue, and usually located on the head and neck in childhood (1). Spinal intradural extramedullary capillary hemangiomas are extremely rare and only a few cases have been reported (2-8). They appear isointense or hypoi...

Intradural lumbar disc herniation is a rare disease. According to the reports of intradural lumbar disc herniations, most cases have developed as a chronic degenerative disc diseases. Traumatic intradural lumbar disc herniations are even rarer. A 52-year-old man visited our emergency center with numbness in his left calf and ankle after falling accident. Initial impression by radiologic finding...