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Case Reports
. 2011 Jan 11;183(1):77-9.
doi: 10.1503/cmaj.081801. Epub 2010 Oct 12.

Shortness of breath while lying down: a woman with orthopneic asthma

Chou-Han Lin  1 , Mong-Wei Lin, Jin-Shing Chen, Chong-Jen Yu
Affiliations
Case Reports

Shortness of breath while lying down: a woman with orthopneic asthma

Chou-Han Lin et al. CMAJ. .
No abstract available

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Figures

Figure 1:
Figure 1:
Flow–volume loop from a 36-year-old woman with orthopnea, showing a plateau phase on the expiratory arm.
Figure 2:
Figure 2:
Posteroanterior chest radiograph, showing a straight tracheal air column (arrow) without narrowing or deviation.
Figure 3:
Figure 3:
Lateral chest radiograph, showing an opacity (arrow) arising from the anterior tracheal wall with a patent posterior tracheal lumen.
Figure 4:
Figure 4:
Chest computed tomography scan, showing a pedunculated tumour (arrow) nearly obliterating the tracheal lumen.
Figure 5:
Figure 5:
Tracheal tumour attached to the anterior of the tracheal ring.
Figure 6:
Figure 6:
Typical findings of pulmonary function tests in patients with small (lower) airway and upper airway obstruction. COPD = chronic obstructive pulmonary disease, FVC = forced vital capacity, FEV1 = forced expiratory volume in the first second of expiration. Reprinted, with permission, from Hyatt et al. Copyright © 2009 Lippincott Williams & Wilkins (http://lww.com).
See this image and copyright information in PMC

References

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    1. Aribas OK, Kanat F, Avunduk MC. Pleomorphic adenoma of the trachea mimicking bronchial asthma: report of a case. Surg Today 2007;37:493–5 - PubMed
    1. Li W, Ellerbroek NA, Libshitz HI. Primary malignant tumors of the trachea; a radiologic and clinical study. Cancer 1990;66:894–9 - PubMed
    1. Hyatt RE, Scanlon PD, Nakamura M. Interpretation of pulmonary function tests: a practical guide. 3rd ed Philadelphia: Lippincott Williams & Wilkins; 2009. Figure 2–7.
    1. Miller RD, Hyatt RE. Obstructing lesions of the larynx and trachea: clinical and physiologic characteristics. Mayo Clin Proc 1969;44:145–61 - PubMed

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