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Related to obstructive atelectasis: atelectatic, pulmonary atelectasis


n. pl. at·e·lec·ta·ses (-sēz′)
1. The absence of gas from all or part of the lung, due to failure of expansion of the alveoli.
2. A congenital condition characterized by incomplete expansion of the lungs.

[New Latin : Greek atelēs, incomplete (a-, not; see a-1 + telos, end; see telo-) + Greek ektasis, stretching out (from ekteinein, to stretch out : ek-, out; see ecto- + teinein, to stretch; see epitasis).]


1. (Pathology) failure of the lungs to expand fully at birth
2. (Pathology) collapse of the lung or a part of the lung, usually caused by bronchial obstruction
[C19: New Latin, from Greek atelēs imperfect + ektasis extension]


(ˌæt lˈɛk tə sɪs)

1. incomplete expansion of the lungs at birth, as from lack of breathing force.
2. collapse of the lungs, as from bronchial obstruction.
[1855–60; < Greek atel(ḗs) incomplete (a- a-6 + -telēs, adj. derivative of télos end, completion) + éktasis extension]
at•e•lec•tat•ic (ˌæt l ɛkˈtæt ɪk) adj.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.atelectasis - collapse of an expanded lung (especially in infants)atelectasis - collapse of an expanded lung (especially in infants); also failure of pulmonary alveoli to expand at birth
pathology - any deviation from a healthy or normal condition


n. atelectasis, colapso parcial o total de un pulmón.
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References in periodicals archive ?
Central type lung cancer with obstructive atelectasis and obstructive inflammation accompanied with metastases in the left pulmonary portal and mediastinal lymph nodes as well as multiple bone metastases were evidenced by positron emission tomography-CT (PET-CT) scan [Figure 1]b.{Figure 1}
Chest positron emission tomography/computed tomography (CT) showed enlargement of the right hilar and mediastinal lymph node, uneven enhancement when scanning reinforcement, considering TB; multiple patch and consolidation in the right upper and middle lobe, and considering obstructive atelectasis; small amount of the right pleural effusion and pericardial effusion.
Pulmonary atelectasis is characterized by a state of collapsed and nonaerated region of the lung parenchyma resulting from parenchymal compression (nonobstructive atelectasis) or bronchial obstruction (obstructive atelectasis).