関: giant cell granuloma

WordNet

small room in which a monk or nun lives (同)cubicle
a device that delivers an electric current as the result of a chemical reaction (同)electric cell
a room where a prisoner is kept (同)jail cell, prison cell
(biology) the basic structural and functional unit of all organisms; they may exist as independent units of life (as in monads) or may form colonies or tissues as in higher plants and animals
any small compartment; "the cells of a honeycomb"
a small unit serving as part of or as the nucleus of a larger political movement (同)cadre
related to the key issue but not of central importance; "a peripheral interest"; "energy is far from a peripheral issue in the economy"; "peripheral issues"
(computer science) electronic equipment connected by cable to the CPU of a computer; "disk drives and printers are important peripherals" (同)computer peripheral, peripheral device
on or near an edge or constituting an outer boundary; the outer area; "Russias peripheral provinces"; "peripheral suburbs"
any creature of exceptional size
someone or something that is abnormally large and powerful (同)goliath, behemoth, monster, colossus
a very large person; impressive in size or qualities (同)hulk, heavyweight, whale
an imaginary figure of superhuman size and strength; appears in folklore and fairy tales
an unusually large enterprise; "Walton built a retail giant"
a tumor composed of granulation tissue resulting from injury or inflammation or infection

PrepTutorEJDIC

(刑務所の)『独房』;(修道院の)小さい独居室 / (ミツバチの)みつ房,巣穴 / 小さい部屋 / 『細胞』 / 電池 / 花粉室 / (共産党などの)細胞
周囲の; 周辺（装置）の・末梢的な・重要でない; （...に比べて）瑣末な (to); 【医】末端部の; コンピュータの周辺装置
『大男』;(物語・伝説の)『巨人』 / 『大人物』,偉人 / 『巨大な物』 / 巨大な,ものすごく大きい

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2016/04/22 01:48:54」(JST)

wiki en

Peripheral giant-cell granuloma (PGCG) is an oral pathologic condition that appears in the mouth as an overgrowth of tissue due to irritation or trauma. Because of its overwhelming incidence on the gingiva, the condition is associated with two other diseases, though not because they occur together. Instead, the three are associated with each other because they appear frequently on gingiva: pyogenic granuloma and peripheral ossifying fibroma. Because of its similar microscopic appearance to the bony lesions called central giant-cell granulomas, peripheral giant-cell granulomas are considered by some researchers to be a soft tissue equivalent.

The appearance of peripheral giant-cell granulomas is similar to pyogenic granulomas. The color ranges from red to bluish-purple, but is usually more blue in comparison to pyogenic granulomas. It can be sessile or pedunculated with the size usually being less than 2 cm.

There is a gender difference with 60% of the disease occurring in females. The prevalence of peripheral giant-cell granulomas is highest around 50 - 60 years of age. It appears only on the gingiva or on an edentulous (without teeth) alveolar ridge. It is more often found in the mandible rather than the maxilla but can be found in either anterior or posterior areas. The underlying alveolar bone can be destroyed, leaving a unique appearance referred to as "cupping resorption" or "saucerization".

Histology

Peripheral giant-cell granulomas appear microscopically as a large number of multinucleated giant cells, which can have up to dozens of nuclei. Additionally, there are mesenchymal cells that are ovoid and spindle-shaped. Near the borders of the lesion, deposits of hemosiderin and hemorrhage is often found. In 50% of cases, ulcerations are present.

Treatment

Treatment usually involves surgical removal of the lesion down to the bone. If there are any adjacent teeth, they are cleaned thoroughly with scaling and root planing (SRP) to remove any possible source of irritation. Recurrence is around 10%.

References

Kahn, Michael A. Basic Oral and Maxillofacial Pathology. Volume 1. 2001.

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English Journal

A recurrent central giant cell granuloma in a young patient and orthodontic treatment: a case report.

Patel D1, Minhas G2, Johnson P1.
Journal of orthodontics.J Orthod.2016 Dec;43(4):306-313. Epub 2016 Sep 22.
Central giant cell granuloma (CGCG) is an uncommon benign intraosseous lesion of the jaw, found predominantly in children and young adults below 30 years of age. The purpose of this article was to present a summary of the current literature and a case report of an 11-year-old boy diagnosed with an a
PMID 27805877

Coexisting sarcoidal granulomatous inflammation and diffuse tenosynovial giant cell tumor of the knee after a total knee replacement: a case report.

Zhang Y1,2, Joyce M3, Schils J4, Bauer TW5,3.
Skeletal radiology.Skeletal Radiol.2016 Dec;45(12):1735-1740. Epub 2016 Oct 7.
Sarcoidosis is a systemic inflammatory disorder characterized by non-caseating granulomas, predominantly involving lung, mediastinal lymph nodes and other organs. Synovium involvement is infrequent, and as far as we know, involvement of a periprosthetic membrane has not been reported in the English
PMID 27717976

Multifocal tenosynovial giant cell tumors in a child with Noonan syndrome.

Meyers AB1,2, Awomolo AO3, Szabo S4,5.
Pediatric radiology.Pediatr Radiol.2016 Nov 23. [Epub ahead of print]
Noonan syndrome is a genetic disorder with variable expression of distinctive facial features, webbed neck, chest deformity, short stature, cryptorchidism and congenital heart disease. The association of Noonan syndrome and giant cell granulomas of the mandible is widely reported. However, Noonan sy
PMID 27878339