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shaped like a star (同)star-shaped
any of numerous small celestial bodies composed of rock and metal that move around the sun (mainly between the orbits of Mars and Jupiter)

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星状の / (また『planetoid』)小惑星 / ヒトデ

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2014/01/24 14:10:33」(JST)

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Two asteroid bodies. H&E stain.

An asteroid body, is a microscopic finding seen within the giant cells of granulomas in diseases such as sarcoidosis and foreign body giant cell reactions.^[1]

There is controversy about what they are composed of. Traditionally, they were thought to be cytoskeletal elements and to consist primarily of vimentin.^[2] However, more recent research suggested that that was incorrect and that they may be composed of lipids arranged into bilayer membranes.^[3]

They were also once thought to be related to centrioles,^[4] an organelle involved in cell division in eukaryotes.

Additional images[edit]

Micrograph of asteroid bodies in pulmonary sarcoidosis. H&E stain.
Micrograph of asteroid bodies in pulmonary sarcoidosis. H&E stain.
Asteroid body in sarcoidosis.

References[edit]

^ Cain, H; Kraus, B (Dec 1977). "Asteroid bodies: derivatives of the cytosphere. An electron microscopic contribution to the pathology of the cytocentre.". Virchows Arch B Cell Pathol 26 (2): 119–32. PMID 204105.
^ Cain, H; Kraus, B (1983). "Immunofluorescence microscopic demonstration of vimentin filaments in asteroid bodies of sarcoidosis. A comparison with electron microscopic findings.". Virchows Arch B Cell Pathol Incl Mol Pathol 42 (2): 213–26. PMID 6133393.
^ Papadimitriou, JC; Drachenberg, CB (1992). "Ultrastructural analysis of asteroid bodies: Evidence for membrane lipid bilayer nature of components". Ultrastruct Pathol 16 (4): 413–421. doi:10.3109/01913129209057826. PMID 1323892.
^ Kirkpatrick, CJ; Curry, A; Bisset, DL (1988). "Light- and electron-microscopic studies on multinucleated giant cells in sarcoid granuloma: new aspects of asteroid and Schaumann bodies.". Ultrastruct Pathol 12 (6): 581–97. doi:10.3109/01913128809056483. PMID 2853474.

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1. サルコイドーシスの皮膚症状 cutaneous manifestations of sarcoidosis
2. 間質性肺疾患における肺生検結果の解釈 interpretation of lung biopsy results in interstitial lung disease
3. スポロトリコーシスの臨床的特徴および診断 clinical features and diagnosis of sporotrichosis
4. サルコイドーシスの臨床症状および診断 clinical manifestations and diagnosis of sarcoidosis

English Journal

Incipient space weathering observed on the surface of Itokawa dust particles.

Noguchi T, Nakamura T, Kimura M, Zolensky ME, Tanaka M, Hashimoto T, Konno M, Nakato A, Ogami T, Fujimura A, Abe M, Yada T, Mukai T, Ueno M, Okada T, Shirai K, Ishibashi Y, Okazaki R.SourceCollege of Science, Ibaraki University, 2-1-1 Bunkyo, Mito, Ibaraki 310-8512, Japan. tngc@mx.ibaraki.ac.jp
Science (New York, N.Y.).Science.2011 Aug 26;333(6046):1121-5.
The reflectance spectra of the most abundant meteorites, ordinary chondrites, are different from those of the abundant S-type (mnemonic for siliceous) asteroids. This discrepancy has been thought to be due to space weathering, which is an alteration of the surfaces of airless bodies exposed to the s
PMID 21868670

Japanese Journal

小天体表面探査ローバの自律化技術(<特集>宇宙探査と人工知能-宇宙の起源の解明に人工知能は寄与できるか?)

吉光徹雄
人工知能学会誌 26(2), 176-183, 2011-03-01
NAID 110008593078

「asteroid」

　　[★]

星状の、(天文)小惑星

関: astral、stellate

[pmid204105-1] Cain, H; Kraus, B (Dec 1977). "Asteroid bodies: derivatives of the cytosphere. An electron microscopic contribution to the pathology of the cytocentre.". Virchows Arch B Cell Pathol 26 (2): 119–32. PMID 204105.

[pmid6133393-2] Cain, H; Kraus, B (1983). "Immunofluorescence microscopic demonstration of vimentin filaments in asteroid bodies of sarcoidosis. A comparison with electron microscopic findings.". Virchows Arch B Cell Pathol Incl Mol Pathol 42 (2): 213–26. PMID 6133393.

[pmid1323892-3] Papadimitriou, JC; Drachenberg, CB (1992). "Ultrastructural analysis of asteroid bodies: Evidence for membrane lipid bilayer nature of components". Ultrastruct Pathol 16 (4): 413–421. doi:10.3109/01913129209057826. PMID 1323892.

[pmid2853474-4] Kirkpatrick, CJ; Curry, A; Bisset, DL (1988). "Light- and electron-microscopic studies on multinucleated giant cells in sarcoid granuloma: new aspects of asteroid and Schaumann bodies.". Ultrastruct Pathol 12 (6): 581–97. doi:10.3109/01913128809056483. PMID 2853474.

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asteroid bodies