WordNet

a closed sac that develops abnormally in some body structure
relating to or secreting synovia
viscid lubricating fluid secreted by the membrane lining joints and tendon sheaths etc. (同)synovial_fluid

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胞嚢(ほうのう)

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2013/08/20 08:29:45」(JST)

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A myxoid cyst (also known as a synovial cyst or mucous cyst) is a ganglion (tissue mass) of the adjacent joint, caused by leakage of fluid from the joint into the surrounding tissue.^[1] These cysts often appear clinically with osteoarthritic symptoms and are a red or bluish colour, producing a gelatinous material if punctured.^[2]

The cyst can be linked to the joint by injection of methylene blue; however, more recently, surgical techniques have been developed.^[1] Common treatments consist of injection of corticosteroids, repeated puncture and drainage of the cyst or surgical excision. Total immobilization may lead to fixation of the joint and is not advised.^[2]

References[edit source | edit]

^ ^a ^b Lawrence C (December 2005). "Skin excision and osteophyte removal is not required in the surgical treatment of digital myxoid cysts". Archives of dermatology 141 (12): 1560–4. doi:10.1001/archderm.141.12.1560. PMID 16365258. Retrieved 2008-10-13.
^ ^a ^b Burkhart CG (2005). "Stabilize the joint associated with myxoid cyst prior to surgical procedure". Dermatology online journal 11 (3): 9. PMID 16409905. Retrieved 2008-10-13.

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English Journal

The first described joint-associated intraneural ganglion cyst.

Spinner RJ, Wang H.SourceMayo Clinic, Department of Neurologic Surgery, Rochester, Minnesota.
Neurosurgery.Neurosurgery.2011 Dec;69(6):1291-8.
This article describes the identification of the first known specimen in which an articular origin for an intraneural cyst was recognized. Prompted by early citations in the 20th century of a valuable 1904 tibial intraneural ganglion housed at St. Bartholomew's Hospital in London, we traveled there
PMID 21566539

Postlaminectomy synovial cyst formation: A possible consequence of ligamentum flavum excision.

Walcott BP, Coumans JV.SourceDepartment of Neurosurgery, Massachusetts General Hospital & Harvard Medical School, 55 Fruit Street, White Building Room 502, Boston, MA 02114, USA.
Journal of clinical neuroscience : official journal of the Neurosurgical Society of Australasia.J Clin Neurosci.2011 Nov 1. [Epub ahead of print]
Ligamentum flavum is generally resected with impunity when a laminectomy is performed; it is a strong ligament and its removal may not be inconsequential. We sought to examine the consequence of resection of ligamentum flavum as it pertains to the formation of synovial cysts. Following IRB approval,
PMID 22051031