rounded atelectasis

円形無気肺

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• 1. 大葉性無気肺の放射線学的パターンradiologic patterns of lobar atelectasis [show details]
  …small bronchus may contribute to the formation of plate-like atelectasis. Rounded atelectasis (historically called folded lung, atelectatic pseudotumor, or Blesovsky syndrome) presents as a subpleural …
• 2. 無気肺：成人における種類および病因atelectasis types and pathogenesis in adults [show details]
  …Acceleration atelectasis can cause symptoms like chest pain, coughing, and dyspnea . Rounded atelectasis (also called folded lung, Blesovsky syndrome, or atelectatic pseudotumor) is a distinct form of atelectasis …
• 3. アスベスト関連胸膜肺疾患asbestos related pleuropulmonary disease [show details]
  …peripheral lung, and this often takes on a rounded appearance on chest radiograph (ie, "rounded atelectasis") Rounded atelectasis can occur as a result of any type of pleural inflammation, but is most often associated …
• 4. 職業性肺疾患のイメージングimaging of occupational lung diseases [show details]
  …pleural effusions in 11 percent and pleural thickening in up to 58 percent of affected workers . Rounded atelectasis may be seen as well . Parenchymal pseudoplaques have been described and occur due to coalescence …
• 5. 肺の高分解能CThigh resolution computed tomography of the lungs [show details]
  …halo sign and atoll sign , amiodarone-induced pneumonia characterized by iodine deposition, rounded atelectasis, and cavitating malignancies . It can facilitate morphologic characterization of lesions,…

English Journal

• Granular cell tumor of the lung.

• Finer EB, Villalba JA, Pitman MB.
• Diagnostic cytopathology. 2019 Apr;47(4)345-346.
• A 46-year-old female with history of asthma, active smoking (20 pack-years), and schizophrenia was evaluated for a persistent asymptomatic pulmonary nodule. Her past medical history was notable for hypertension, obesity, polycystic ovary syndrome, abnormal uterine bleeding, multinodular thyroid glan
• PMID 30582298

• Low-dose chest computed tomography screening of subjects exposed to asbestos.

• Kato K, Gemba K, Ashizawa K, Arakawa H, Honda S, Noguchi N, Honda S, Fujimoto N, Kishimoto T.
• European journal of radiology. 2018 Apr;101()124-128.
• The primary aim was to reveal the prevalence of lung cancer (LC) and malignant pleural mesothelioma (MPM) in subjects with past asbestos exposure (AE). We also examined pulmonary or pleural changes correlated with the development of LC. This was a prospective, multicenter, cross-sectional study. The
• PMID 29571785

• Imaging assessment of rounded atelectasis: A pictorial essay.

• Riley JY, Naidoo P.
• Journal of medical imaging and radiation oncology. 2018 Apr;62(2)211-216.
• Rounded atelectasis is an increasingly recognized but under-diagnosed and sometimes misdiagnosed pulmonary entity. This pictorial essay will present a broad range of examples of rounded atelectasis across different imaging modalities with inclusion of typical and atypical presentations. These exampl
• PMID 29430848

Japanese Journal

• 著明な拘束性換気障害に至った難治性良性石綿胸水の1例

• 後町 杏子,砂川 泉子,杉野 圭史,根本 哲夫,本間 栄
• 肺癌 58(7), 1001-1006, 2018
• <p><b>背景．</b>良性石綿胸水，びまん性胸膜肥厚，円形無気肺はいずれもアスベスト関連呼吸器疾患の一つである．<b>症例．</b>造船業事務の職歴のある76歳男性．右胸水貯留のため受診され，胸部CTでは右下葉に円形無気肺，右胸水，両側の胸膜肥厚，胸膜プラークを認めた．経気管支肺生検では右円形無気肺は虚脱線維化した肺組織，右胸水穿刺で …
• NAID 130007556378

• アスベスト曝露により発生した円形無気肺の検討 (胸部の最新画像情報2015)

• 清水 崇,北原 哲彦,馬場 順子 [他]
• 臨床放射線 60(1), 140-145, 2015-01
• NAID 40020330168

• アスベスト関連呼吸器疾患 (特集 職業性肺疾患の最新動向)

• 四十坊 典晴
• 呼吸器内科 23(5), 443-448, 2013-05
• NAID 40019694595

Related Links

• Rounded atelectasis of the lung: A pictorial review

Rounded atelectasis of the lung is well described in medical literature, but still difficult to diagnose. Since lesions give no clinical symptoms in patients, radiologists are often the first to recognize the round lesion in an X ...

• Round atelectasis | Radiology Reference Article | Radiopaedia.org

Round atelectasis, also known as rounded atelectasis, folded lung or Blesovsky syndrome, is an unusual type of lung atelectasis where there is infolding of a redundant pleura. The way the lung collapses can at times give a false ...

• Rounded atelectasis | definition of rounded atelectasis by ...

Symptoms. In acute atelectasis in which there is sudden obstruction of the bronchus, there may be dyspnea and cyanosis, elevation of temperature, a drop in blood pressure, or shock. In the chronic form, the patient may experience ...

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★リンクテーブル★

リンク元	「円形無気肺」
関連記事	「round」

「円形無気肺」

　　[★]

英

round atelectasis

同

円板状アテレクターゼ 円板状無気肺 discoid atelectasis、板状様アテレクターゼ 板状無気肺 plate like atelectasis、rounded atelectasis？

YN.I-85 SRA.224

• 大きさは3-5cmで胸膜に接する腫瘤。
• 円形、類縁形あるいは腫瘤状陰影を呈する無気肺。胸膜肥厚、癒着を伴う
• 石綿暴露歴、男性、喫煙者であることが多い。
• 下肺野に多く(SRA.297 参考3)、右下葉に多い(SRA.224)。
• 成因は不明であるが、臓側胸膜の線維化により胸膜が肺を包み込むようにして形成されるという考えがある。
• 肺癌や結核腫の鑑別が問題となる。
• CT上、肥厚した胸膜に接した円形腫瘤映画認められ、気管支や血管が腫瘤影にまきこまれる陰影(comet-like tail)が観察される。
• 造影CTでは類円形、均一に造影される(参考1)
• 大きさが不変であることや縮小傾向を示すことは良性であることを示唆する。
• 画像所見のみで診断できるが、特徴的なcommet tailが見られなければ生検が必要かも。(参考3)

• 石綿肺に関連して生じた円形無気肺はasbestos pseudotumor, Blesovsky syndromeと呼ばれる(参考1)

参考

• 1. chest xp: Asbestos: When the Dust Settles—An Imaging Review of Asbestos-related Disease1

Fig 10a.が円形無気肺

http://radiographics.rsna.org/content/22/suppl_1/S167.full

• 2. chest XP: みにくい

http://imaging.consult.com/image/chapter/Chest?title=Atelectasis&image=fig5&locator=gr5&pii=S1933-0332(08)73180-X

• 3. [charged] Radiologic patterns of lobar atelectasis - uptodate [1]

「round」

　　[★]

• n.

• 回転、ラウンド、一巡、回診

• adj.

• 円形の

関

circular、convolution、revolution、revolve、roll、rolling、rotate、rotation、rotatory、turn、turning