posterior fossa

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posterior fossa

a depression on the posterior surface of the humerus, above the trochlea, that lodges the olecranon of the ulna when the elbow is extended.

Patient discussion about posterior fossa

Q. info on arachnoid cyst in the right posterior fossa

A. Basically it's like a small sac filled with fluid. The problem is that the skull is a rigid closed space, which means that if there's something other than the brain, it'll occupy space, usually on expense of the brains' space. These kinds of problems are often referred to as "space occupying lesion".

It's usually congenital (i.e. develops during pregnancy), and even when it cause symptoms they develop slowly.

YOu can read more here (

More discussions about posterior fossa
References in periodicals archive ?
Patients with autosomal-recessive osteopetrosis presenting with hydrocephalus and hindbrain posterior fossa crowding.
She said: "Amelia had most of the brain tumour removed last summer but she's got posterior fossa syndrome because her brain was traumatised.
The posterior fossa is the most common intracranial location to encounter the complications of mastoiditis, with the middle cranial fossa the next most common.
They cover operating room equipment, setup, and culture; general skills of the intracranial aneurysm surgeon; and aneurysms of the carotid, middle cerebral, and anterior cerebral arteries, posterior fossa, large and giant aneurysms, and problems posed by previously-coiled and stented aneurysms, with b&w illustrations.
Bradycardia following hydrogen peroxide irrigation during posterior fossa surgery.
Posterior fossa syndrome can occur after neurosurgical resections of childhood posterior fossa tumors, such as medultoblastomas.
Notably, location must also be considered14,16 as posterior fossa masses are more likely to require surgical intervention.
The authors are affiliated with Gruppo Otologico, based in Piacenza and Rome, Italy, where many thousands of procedures have been performed on posterior fossa lesions and acoustic neurinomas.
Polyploidy in atypical grade II choroid plexus papilloma of the posterior fossa.
2, involving a 4-year-old boy with a completely excised medulloblastoma that was confined to the posterior fossa.
My youngest son, Hudson, was diagnosed with a fast-growing, posterior fossa, atypical teratoid rhabdoid tumor (ATRT) of the brain.

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