Intramedullary spinal epidermoid cysts are benign ectopic embryological growths with reported incidence of less than 1% of intramedullary tumors. In this case we report an unusual cervical intramedullary epidermid with liquid contents. A 40-year-old patient presented with progressive weakness of all four limbs of four months duration, bowel and bladder disturbances of two days duration, pain an...

Arachnoid cysts are congenital and non-tumorous intra-arachnoid fluid accumulations that make up about 1% of all intracranial space. occupying lesions. We report a patient with a fourth ventricle arachnoid cyst extending to the upper border of the dens of the axis. This patient progressively developed walking difficulty and stiffness in his legs together with difficulty in grasping objects with...

Arachnoid cysts which develop in relation to the cerebral hemispheres are usually found in the middle cranial fossa. These cysts are usually asymptomatic but can produce symptoms if there is haemorrhage into the cyst or the development of an associated subdural hematoma. Recent publications have emphasised the association of arachnoid cysts of the middle fossa with subdural haematomas. This rep...

Matthew Clary, MD Thomas Jefferson Univ, Dept Oto-HNS 925 Chestnut St, 6th Fl Philadelphia, PA 19107 [email protected] Objective We introduce the inclusion of arachnoid cysts in the differential diagnosis of a middle ear mass, as well as discuss the presentation, radiologic findings, and management of arachnoid cysts of the fallopian canal. Methods We present a very rare but clinically import...

Arachnoid webs are abnormal formations of arachnoid membrane in the spinal subarachnoid space that prevents movement of cerebrospinal fluid (CSF) in the longitudinal direction1.These webs represent intradural extramedullary transverse bands of arachnoid tissue that extend to the dorsal surface of the spinal cord resulting in dorsal indentation2. These arachnoid webs may represent a variant of a...

Section: Neuroradiology History: 32-year-old female with a headache. MR Brain with and without contrast Review the images below. What is the most likely diagnosis? a. Arachnoid cyst. b. Epidermoid cyst. c. Pineal cyst. d. Germ cell tumor. Answers: a. Sorry, arachnoid cysts will follow CSF signal on all sequences. Please pay particular attention to the FLAIR sequence. b. Good try; an epidermoid ...

A nine-year-old male, neutered, pug was presented for investigation of progressive ambulatory paraparesis and pelvic limb ataxia of three months' duration. Magnetic resonance imaging was suggestive of caudal thoracic syringohydromyelia with an adjacent intradural arachnoid cyst. The cyst was marsupialised following dorsal laminectomy. Neurological status had improved 10 weeks following surgery ...

© 2015 Egyp an Journal of Neurosurgery. All rights reserved Background: Posterior fossa arachnoid cysts cons tute 10-11% of all intracranial arachnoid cysts and are considered to be the second most common after middle fossa arachnoid cysts. Their diagnosis, indications of surgical intervention and mode of surgical management are still points of debate. Objective: We report our experience in the...

OBJECT Idiopathic spinal cord herniation (ISCH) is an uncommon clinical entity typically presenting with lower-extremity myelopathy. Despite the existence of 85 ISCH cases in the literature, misdiagnosis and delayed diagnosis remain a major concern. METHODS The authors conducted a retrospective review of patients who underwent surgery for ISCH at their institutions between 1993 and 2004. Seve...

Sellar arachnoid cysts are rare; an infected arachnoid cyst is extremely rare as only one case has been reported to date in the literature. Here, we report a patient with an infected or inflamed sellar arachnoid cyst that was successfully treated with transsphenoidal surgery (TSA). A 53-year-old female with a history of chronic sinusitis developed a headache 5 months ago, and one month before a...