scholarly journals Loss of consciousness during air travel: A case of lung bullae

2021 ◽  
Vol 2021 (9) ◽  
Author(s):  
Kenan B Nyalile ◽  
Abid M Sadiq ◽  
Adnan M Sadiq ◽  
Elichilia R Shao
Keyword(s):  
Respiratory Symptoms ◽  
Incidental Finding ◽  
Tension Pneumothorax ◽  
Air Travel ◽  
Loss Of Consciousness ◽  
Computed Tomography Imaging ◽  
X Ray ◽  
Tomography Imaging ◽  
Giant Bulla ◽  
Chest X Ray

ABSTRACT A giant lung bulla occupies at least a third of the lung space. We present a middle-aged man who lost consciousness during an air flight for 30 minutes, without any respiratory symptoms. An incidental finding on chest x-ray revealed a giant bulla and a chest computed tomography imaging confirmed the diagnosis and ruled out a tension pneumothorax. A giant lung bulla is an uncommon cause of loss of consciousness and may be suspected if it occurs during air travel.

scholarly journals Multicontrast x-ray computed tomography imaging using Talbot-Lau interferometry without phase stepping

2011 ◽  
Vol 39 (1) ◽  
pp. 424-428 ◽  
Author(s):  
Nicholas Bevins ◽  
Joseph Zambelli ◽  
Ke Li ◽  
Zhihua Qi ◽  
Guang-Hong Chen
Keyword(s):  
Computed Tomography ◽  
Computed Tomography Imaging ◽  
X Ray ◽  
Tomography Imaging ◽  
Phase Stepping ◽  
X Ray Computed

scholarly journals Hoarseness of Voice as a Rare Presentation of Tuberculosis: A Case Report Study

2019 ◽  
Vol 7 (19) ◽  
pp. 3262-3264
Author(s):  
Taher Felemban ◽  
Abdullah Ashi ◽  
Abdullah Sindi ◽  
Mohannad Rajab ◽  
Zuhair Al Jehani
Keyword(s):  
Laryngeal Carcinoma ◽  
Incidental Finding ◽  
Chain Reaction ◽  
Rare Presentation ◽  
Case Presentation ◽  
X Ray ◽  
History Of ◽  
Chest X Ray ◽  
Polymerase Chain ◽  
Laryngeal Tuberculosis

BACKGROUND: Having hoarseness of voice as the first clinical manifestation of tuberculosis is rare. This atypical presentation causes some confusion since other more common conditions, such as laryngeal carcinoma, present similarly and might require more invasive tests to confirm the diagnosis. CASE PRESENTATION: A 38-year-old male presented to the otorhinolaryngology clinic with a four-month history of change in voice. Laryngoscopy demonstrated a right glottic mass, raising suspicion of laryngeal cancer. The computed tomography showed a mass and incidental finding of opacities in lung apices. Chest x-ray demonstrated findings suggestive of tuberculosis. Polymerase chain reaction and culture of sputum samples confirmed the diagnosis and the patient was started on anti-tuberculosis treatment. CONCLUSION: Despite accounting for only 1% of pulmonary tuberculosis cases and having a similar presentation to laryngeal carcinoma, we recommend considering laryngeal tuberculosis when evaluating hoarseness of voice in endemic areas.

scholarly journals Syncope Caused by Huge Hiatal Hernia

2011 ◽  
Vol 2011 ◽  
pp. 1-2 ◽  
Author(s):  
Gabriel Vanerio
Keyword(s):  
Blood Pressure ◽  
Hiatal Hernia ◽  
Normal Sinus Rhythm ◽  
White Female ◽  
Loss Of Consciousness ◽  
X Ray ◽  
Normal Sinus ◽  
Carbonated Soft Drinks ◽  
Chest X Ray ◽  
Careful History

A 84-year-old white female had a brief loss of consciousness while playing bridge. A few minutes before the episode she had eaten pizza and significant amount of carbonated soft drinks. After recovery, her friends noticed that she was alert, but pale and sweating. Upon arrival at the emergency room, sitting blood pressure was 160/60 mmHg with a normal sinus rhythm. A chest X-Ray was performed, which was essential to make the diagnosis. The X-Ray showed a large retrocardiac opacity with air and liquid level compatible with a giant hiatus hernia. After a copious snack the hiatal hernia compressed the left atrium, decreasing the left cardiac output, elucidating the mechanism of the syncopal episode. In patients presenting with swallow syncope (particularly after a copious meal, validating the importance of a careful history), a chest X-Ray should be always be performed.

Comparison of Baseline, Bone-Subtracted, and Enhanced Chest Radiographs for Detection of Pneumothorax

2020 ◽  
pp. 084653712090885
Author(s):  
Fatemeh Homayounieh ◽  
Subba R. Digumarthy ◽  
Jennifer A. Febbo ◽  
Sherief Garrana ◽  
Chayanin Nitiwarangkul ◽  
...  
Keyword(s):  
False Negative ◽  
Tension Pneumothorax ◽  
Area Under The Curve ◽  
Ground Truth ◽  
Chest Radiographs ◽  
Detection Rates ◽  
X Ray ◽  
Institutional Review ◽  
Type Area ◽  
Chest X Ray

Purpose: To assess and compare detectability of pneumothorax on unprocessed baseline, single-energy, bone-subtracted, and enhanced frontal chest radiographs (chest X-ray, CXR). Method and Materials: Our retrospective institutional review board–approved study included 202 patients (mean age 53 ± 24 years; 132 men, 70 women) who underwent frontal CXR and had trace, moderate, large, or tension pneumothorax. All patients (except those with tension pneumothorax) had concurrent chest computed tomography (CT). Two radiologists reviewed the CXR and chest CT for pneumothorax on baseline CXR (ground truth). All baseline CXR were processed to generate bone-subtracted and enhanced images (ClearRead X-ray). Four radiologists (R1-R4) assessed the baseline, bone-subtracted, and enhanced images and recorded the presence of pneumothorax (side, size, and confidence for detection) for each image type. Area under the curve (AUC) was calculated with receiver operating characteristic analyses to determine the accuracy of pneumothorax detection. Results: Bone-subtracted images (AUC: 0.89-0.97) had the lowest accuracy for detection of pneumothorax compared to the baseline (AUC: 0.94-0.97) and enhanced (AUC: 0.96-0.99) radiographs ( P < .01). Most false-positive and false-negative pneumothoraces were detected on the bone-subtracted images and the least numbers on the enhanced radiographs. Highest detection rates and confidence were noted for the enhanced images (empiric AUC for R1-R4 0.96-0.99). Conclusion: Enhanced CXRs are superior to bone-subtracted and unprocessed radiographs for detection of pneumothorax. Clinical Relevance/Application: Enhanced CXRs improve detection of pneumothorax over unprocessed images; bone-subtracted images must be cautiously reviewed to avoid false negatives.

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