Mediastinal Shift: Causes & Reasons

Possible Causes for Mediastinal Shift

shift ipsilateral tracheal deviation ipsilateral shift of the heart [radiopaedia.org]

[…] structures shift toward side of atelectasis shift toward side of atelectasis Obstructive Atelectasis: Mediastinal structures _______________ Diaphragm elevates on affected [quizlet.com]

shift") potential causes of resorptive atelectasis include obstructing neoplasms, mucous plugging in asthmatics or critically ill patients and foreign body aspiration resorptive [radiopaedia.org]

Scimitar Syndrome

[…] is more likely to have a contralateral mediastinal shift and focal increase in pulmonary echogenicity. [mdpi.com]

Chest radiography showed volume loss of the right lung with mediastinal shift to the right and opacification of the right hemithorax. [sajr.org.za]

Patient Data Age: 2 days Gender: Male From the case: Scimitar syndrome x-ray Frontal Mediastinal shift to the right with near white-out of the right hemithorax. [radiopaedia.org]

Diaphragmatic Eventration

A mediastinal shift to the contralateral side may cause significant compression of the affected chest contents, resulting in compromised pulmonary function, especially when [ncbi.nlm.nih.gov]

In adults, mostly it is asymptomatic, usually it involves left hemidiaphragm with right sided mediastinal shift [ 1 ]. [omicsonline.org]

His chest radiograph showed a raised left diaphragmatic dome with a gastric shadow obliterating the left lung field and mediastinal shift to the right [Figure 1]. [archintsurg.org]

Malignant Pleural Effusion

A patient presented to the emergency department with a malignant pleural effusion associated with shortness of breath, and radiographic evidence of mediastinal shift and hypotension [ncbi.nlm.nih.gov]

Chest radiograph reveals right upper lobe collapse and a moderate sized right-sided pleural effusion with no mediastinal shift. [clevelandclinicmeded.com]

Such a situation may be suggested by lack of mediastinal shift on perioperative radiographs or may be seen only at surgery. [doi.org]

Tension Pneumothorax

He was clinically stable without hypoxia or hypotension, and the initial chest x-ray study showed a large pneumothorax without mediastinal shift. [ncbi.nlm.nih.gov]

If not relieved, it can lead to lung collapse and mediastinal shift. [medical-dictionary.thefreedictionary.com]

Giant bulla may mimic TPX with wide radiolucent view and mediastinal shift. The present report includes giant pulmonary bulla in 35-year-old woman. [ncbi.nlm.nih.gov]

Lobectomy or Pneumonectomy

CT The lung is absent at the side of surgery, with resultant mediastinal shift and compensatory hyperinflation of the contralateral lung. Promoted articles (advertising) [radiopaedia.org]

Second point, there may be no sign to suggest mediastinal shift in lobectomy ( central trachea) but in penumonectomy, you are expected to find signs suggesting mediastinal [passpaces.com]

A fistula between the bronchus and pleura sometimes occurs, leading to subcutaneous emphysema and mediastinal shift caused by a massive air leak. [medical-dictionary.thefreedictionary.com]

Bronchial Obstruction

Computed tomography revealed a large endobronchial lesion causing occlusion of the left main bronchus and significant mediastinal shift to the left. [ncbi.nlm.nih.gov]

Conclusion: Obstruction of the right main bronchus by a soft tissue mass resulting in airless "drowned" right lung with subsequent volume loss and mediastinal shift. [radiopaedia.org]

Chest radiography reveals left-sided volume loss with mediastinal shift and multifocal heterogeneous opacities within the mid-lower left lung field. [clevelandclinicmeded.com]

Pleuropulmonary Blastoma

shift to the opposite side. [radiopaedia.org]

Unilateral lung whiteout on plain film with mediastinal shift to opposite side. Usually there are no adjacent rib erosions or calcifications. [deeprad.de]

shift, frequent pleural effusion, and no chest wall invasion. [ncbi.nlm.nih.gov]

Foreign Body Aspiration

CONCLUSION: Penetration syndrome, localized decreased breath sounds, unilateral hyperinflation and/or mediastinal shift on radiology are predictors for early diagnosis of [ncbi.nlm.nih.gov]

Tracheal deviation, mediastinal shift. Diagnostic workout: Anamnesis (extraordinary episode of coughing, peanuts ?). [kidsdoc.at]

Chest x-ray showed overdistension of the left lung and a mediastinal shift. Foreign body aspiration was diagnosed. [ncbi.nlm.nih.gov]

Hydropneumothorax

Computed tomography of the thorax showed multiple bilateral cavitating lesions and a right-sided hydropneumothorax with mediastinal shift. [ncbi.nlm.nih.gov]

A chest x-ray revealed mediastinal shift and a left sided pneumothorax. Drainage was carried out, revealing air and clear fluid in the pleural space. [ncbi.nlm.nih.gov]

shift to the right to suggest tension. [chestcases.med.virginia.edu]

Traumatic Pneumothorax

Complete collapse of affected lung with increased pressure in chest resulting in mediastinal shift and impaired venous return to heart. [quizlet.com]

In a tension pneumothorax, findings may include a displaced point of maximal impulse, tracheal deviation, mediastinal shift, and hemodynamic instability. [journals.lww.com]

The mediastinal shift that was caused by the tension pneumothorax (Fig. 5 in the Supplementary Appendix ) caused mild circulatory instability (blood pressure, 80/40 mm Hg; [nejm.org]

Pleural Effusion

A 13-year-old boy with no risk factors for lung cancer presented with a massive left-sided pleural effusion and a mediastinal shift on chest radiography and computed tomography [ncbi.nlm.nih.gov]

Anteroposterior upright chest radiograph shows a massive left-sided pleural effusion with contralateral mediastinal shift. Image courtesy of Allen R. Thomas, MD. [emedicine.medscape.com]

A very large pleural effusion appears as an opaque hemithorax with a mediastinal shift to the contralateral side. [radiopaedia.org]

Diaphragmatic Hernia

At autopsy, the left pleural cavity was occupied by herniated abdominal contents with mediastinal shift. [ncbi.nlm.nih.gov]

Air entry was reduced on the left side chest with mediastinal shift to the right. Abdominal examination was normal. [emj.bmj.com]

shift to the right + compression of the contralateral lung In doubtful cases, a naso-gastric tube is inserted and a chest radiograph is taken: the feeding tube will be seen [amboss.com]

Artificial Pneumothorax

Abstract Systemic air embolism occurred in a patient during general anaesthesia, with positive pressure ventilation, following induction of artificial pneumothorax to assist in the diagnosis of a mediastinal mass. A sudden change in vital signs together with neurological abnormalities suggested involvement of both[…] [ncbi.nlm.nih.gov]

Compression Atelectasis

Mediastinal Shift  Usually greatest in area of greatest loss of volume  Upper lobe, shift of upper trachea Signs of Atelectasis Compensatory Overinflation  With larger [learningradiology.com]

Some indirect signs of volume loss include vascular crowding or fissural, tracheal, or mediastinal shift, towards the collapse. [med-ed.virginia.edu]

Often seen in pts with ARDS Signs and symptoms that indicate tension PTX Severe dyspnea and tachycardia Tracheal and mediastinal shift Systemic hypotension due to decreased [quizlet.com]

Foreign Body in the Bronchus

There may be lung collapse with severe mediastinal shift or obstructive emphysema. [jpma.org.pk]

X-ray chest may show obstructive emphysema, tracheal shift, collapse and mediastinal shift CT Scan is extremely useful for locating a foreign body prior to bronchoscopy. [specialist-ent.com]

X- ray chest revealed partial collapse of right lung with mediastinal shift and hyperinflation of left lung. [ispub.com]

Congenital Malformation of the Lung

Mediastinal shift may be present, with hyperresonance and decreased breath sounds on the involved side. [emedicine.medscape.com]

Location and size of the lesion, presence of mediastinal shifting and associated malformations were noted. [journals.plos.org]

shift may compromise cardiac and respiratory function Spontaneous pneumothoraces (collapsed lungs) may occur, and air trapping within the cyst, which leads to compression [childrensnational.org]

Iatrogenic Pneumothorax

If not relieved, it can lead to lung collapse and mediastinal shift. [medical-dictionary.thefreedictionary.com]

Tracheal deviation (the trachea is skewed away from the side of the tension pneumothorax) signifies that a mediastinal shift has occurred and is an ominous sign. [teleflex.com]

Potential complications include tension pneumothorax, the accumulation of air in the pleural space causing mediastinal shift and circulatory collapse. [journals.lww.com]

Tracheal Foreign Body

On an expiratory film there is air trapping on the affected side and mediastinal shift to the unaffected side. [virtualpediatrichospital.org]

There may be lung collapse with severe mediastinal shift or obstructive emphysema. [jpma.org.pk]

Showing evidence of hyper-inflated right lung, left lower lobe atelectasis, mediastinal shift and a clear radio-opaque foreign body in the left main (arrowed) bronchus. [southsudanmedicaljournal.com]

Mediastinal Hernia

If deflation of the stomach is not accomplished the mediastinal shift can impair venous return and lead to cardiac arrest [ 3, 12 – 14 ]. [sjtrem.biomedcentral.com]

When the bowel becomes distended with air, it occupies more space, further compromising lung expansion and increasing mediastinal shift. [pedsradiology.com]

This permitted evacuation of fluid but prevented mediastinal shifts. [nature.com]

Bronchial Compression

None of our cases demonstrated the more usual signs of hyperinflation which are a hyperlucent lung field, depressed hemidiaphragm and mediastinal shift away from the affected [ncbi.nlm.nih.gov]

shift rather than focal hyperinflation tubular structure paralleling the right heart border in the shape of a Turkish sword (“scimitar”) endobronchial tumor (e.g. carcinoid [radiopaedia.org]

shift may compromise cardiac and respiratory function Spontaneous pneumothoraces (collapsed lungs) may occur, and air trapping within the cyst, which leads to compression [childrensnational.org]

Dextrocardia

Abstract Dextrocardia, although a rare cardiac abnormality, carries the same risk for cardiac events as other people. SPECT Myocardial perfusion imaging is a potentially helpful diagnostic tool in patients with dextrocardia. Because of swapping of lateral and septal walls on SPECT slices, although visual analysis is[…] [ncbi.nlm.nih.gov]

Congenital Pulmonary Hypoplasia

Also note the mediastinal shift and corresponding atelectasis of the right lung. Figure 18. [clinicaladvisor.com]

Plain radiography shows absence of aeration of the affected lung, with ipsilateral mediastinal shift. [jbsr.be]

Chest X-ray showing hypoplasia of the right lung with mediastinal shift to the right. [slideshare.net]

Diaphragmatic Rupture

His chest radiography and computed tomography demonstrated left diaphragmatic rupture, mediastinal shift and herniation of gastric fundus into the pleural cavity. [ncbi.nlm.nih.gov]

Axial computed tomography scan shows mild mediastinal shift to the right and a positive dependent viscera sign. [rc.rcjournal.com]

shift visualization of a nasogastric tube above the hemidiaphragm on the left side left hemidiaphragm much higher than the right CT Direct discontinuity of the hemidiaphragm [radiopaedia.org]

Swyer-James Syndrome

Radiological findings are characteristic and include a pronounced one sided hyperlucency of the lung (due to oligemia), a mediastinal shift toward the affected side on inspiration [ncbi.nlm.nih.gov]

Imaging Findings Chest radiograph showed reduced right lung volume and rightward mediastinal shift. [eurorad.org]

Other features on this modality include hypovascularity, a mediastinal shift towards the affected lung, a small hilar shadow, and air trapping with expiration. [symptoma.com]

Congenital Lung Cyst

Imaging: Chest x-ray as initial investigation to evaluate airway impingement and mediastinal shift and infection. [clinicalpainadvisor.com]

Hydrops is secondary to vena caval obstruction and cardiac compression from large tumors causing an extreme mediastinal shift. [chop.edu]

In 4 babies chest X-ray showed tracheal and mediastinal shift to the opposite side. Increased translucency was noted on the affected side [Figure - 1]. [jpgmonline.com]

Congenital Unilateral Pulmonary Hypoplasia

Chest X-ray showing hypoplasia of the right lung with mediastinal shift to the right. [slideshare.net]

In these cases, a fluid-filled structure causing mediastinal shift may be present within the chest. [sonoworld.com]

A leftward mediastinal shift was seen (Figure 1). Citation: Sagie G, Koplewitz BZ, Sagui G, Cohen S, Springer C, et al. [austinpublishinggroup.com]

Congenital Emphysema

The ipsilateral rib spaces may be widened, the ipsilateral hemidiaphragm may be depressed, and there may be contralateral mediastinal shift. [roentgenrayreader.blogspot.com]

Post-operative chest X-ray showed expansion of the right upper and lower lobes, with no emphysema or mediastinal shift. [jcnonweb.com]

The cardiac apex may be displaced if marked mediastinal shift is present. [prognosisapp.com]

Bronchopulmonary Sequestration

This lesion caused compression of the normal left lung tissue and contralateral mediastinal shift. [ncbi.nlm.nih.gov]

The prognosis is poor in cases diagnosed before 26 weeks' gestation and when there is mediastinal shift, polyhydramnios and fetal hydrops. [ncbi.nlm.nih.gov]

All had significant mediastinal shift and polyhydramnios, but normal doppler flow parameters. [thieme-connect.com]

Congenital Diaphragmatic Hernia

shift to the left. [ncbi.nlm.nih.gov]

X-ray documented distended loops of bowel with air fluid levels in the abdomen and a gasless, non-homogeneous opacity of the left hemithorax, a right mediastinal shift and [ncbi.nlm.nih.gov]

The principal findings include a chest mass (which may exhibit peristalsis) and mediastinal shift, in the setting of malposition of the stomach and/or liver. 3. [slideshare.net]