Search results
Results from the WOW.Com Content Network
A ganglion cyst is a fluid-filled bump associated with a joint or tendon sheath. [3] It most often occurs at the back of the wrist, followed by the front of the wrist. [3] [4] The cause is unknown. [3] The underlying mechanism is believed to involve an outpouching of the synovial membrane. [4] Diagnosis is typically based on examination.
During the late 1800s, early 1900s, Spanish Neuroscientist and Pathologist Santiago Ramón y Cajal proposed Neuron theory which basically introduced the idea that the Nervous system contained cells called the Neuron. The process he used was called Golgi staining of the vertebrae retina. Cajal was able to differentiate between different types of ...
The removal of a ganglion cyst usually requires a ganglionectomy. Such cysts usually form on the hand, foot or wrist and may cause pain or impair body function. Aspiration of the cyst and steroid injections are typically performed first. If they fail, the cyst is excised under local, regional or even general anesthetic.
Ulnar tunnel syndrome is usually caused by a ganglion cyst pressing on the ulnar nerve, other causes include traumas to the wrist and repetitive movements, but often the cause is unknown (idiopathic). [2] Long distance bicycle rides are associated with transient alterations in ulnar nerve function. [3]
Ganglia are primarily made up of somata and dendritic structures, which are bundled or connected.Ganglia often interconnect with other ganglia to form a complex system of ganglia known as a plexus.
The stellate ganglia may be cut in order to decrease the symptoms exhibited by Raynaud's phenomenon and hyperhydrosis (extreme sweating) of the hands. Injection of local anesthetics near the stellate ganglion can sometimes mitigate the symptoms of sympathetically mediated pain such as complex regional pain syndrome type I (reflex sympathetic dystrophy), and symptoms associated with alterations ...
Unicameral bone cysts can be classified into two categories: active and latent. [4] An active cyst is adjacent to the epiphyseal plate and tends to grow until it fills the entire diaphysis , the shaft, of the bone; depending on the invasiveness of the cyst, it can cause a pathological fracture or even destroy the epiphyseal plate leading to the ...
Cysts can also be sites for nuclear reorganization and cell division, and in parasitic species they are often the infectious stage between hosts. When the encysted microbe reaches an environment favorable to its growth and survival, the cyst wall breaks down by a process known as excystation .