Chest Radiology Practice Questions

Q: The CT chest shows presence of:

Bronchiectasis. ***Bronchiectasis*** - The CT images demonstrate extensive bilateral **dilated, thick-walled bronchi** with cystic bronchiectatic changes distributed throughout both lung fields. - The bronchi appear abnormally widened, with thickened walls, consistent with **irreversible bronchial dilatation** characteristic of bronchiectasis. - Cystic spaces representing severely dilated bronchi are visible, along with associated architectural distortion of the surrounding lung parenchyma. - These findings — dilated airways larger than their accompanying pulmonary artery (signet-ring sign), thickened bronchial walls, and cystic bronchiectatic changes — are the hallmark CT features of bronchiectasis. *Pulmonary alveolar proteinosis* - Pulmonary alveolar proteinosis typically presents on CT with diffuse, bilateral ground-glass opacities with superimposed interlobular and intralobular septal thickening, creating a characteristic **crazy-paving pattern**. - This pattern is not demonstrated in the provided image, which instead shows dilated thick-walled airways rather than alveolar filling with lipoproteinaceous material. *Aspergillosis* - Pulmonary aspergillosis encompasses several forms, such as aspergilloma (fungus ball in a cavity), invasive aspergillosis (nodules, halo sign, or cavitation), or allergic bronchopulmonary aspergillosis (mucoid impaction, bronchiectasis). - The diffuse cystic bronchial dilatation with thick walls seen in the image does not represent the primary radiological features of aspergillosis. *Pulmonary embolism* - Pulmonary embolism on CT pulmonary angiography presents as filling defects within the pulmonary arteries. - The findings in this image — dilated thick-walled airways and cystic bronchiectatic changes — are not consistent with pulmonary embolism.

Q: The image provided represents:

CT chest with contrast. ***CT chest with contrast*** - The image displays detailed **cross-sectional anatomy** of the chest, including the lungs, mediastinum, and cardiac structures, with evident **enhancement of blood vessels and vascular structures**. - The **opacification of the thoracic vessels**, including the aorta and pulmonary vasculature, is characteristic of **intravenous contrast administration**. - The **cross-sectional detail** and high resolution are characteristic of a **CT scan**, and the hyperdense (bright) appearance of the vascular structures confirms the use of contrast material. *Barium swallow study* - The image provided is a **CT scan of the chest**, not a barium swallow study. A barium swallow study involves administering barium contrast and taking X-rays to visualize the esophagus. - The density and grayscale variations seen in the image are characteristic of a CT, which uses X-rays to create cross-sectional images of body structures, and not of the high-contrast white appearance of barium within an organ lumen. *X-ray chest* - While an X-ray chest is used to visualize chest structures, this image exhibits **cross-sectional detail** and high resolution that is characteristic of a **CT scan**, rather than a plain film X-ray. - An X-ray chest provides a 2D projection, whereas this image clearly shows a 3D cut through the chest organs with distinct tissue densities.

Q: A 35-year-old coal worker presents with difficulty in breathing on exertion for last 2 years. CXR was performed. It shows:

Reticulonodular infiltrates. ***Reticulonodular infiltrates*** - The chest X-ray of a coal worker presenting with shortness of breath over two years is suggestive of **coal workers' pneumoconiosis (CWP)**. - The CXR demonstrates **bilateral reticulonodular opacities**, predominantly in the upper zones, consistent with simple coal workers' pneumoconiosis. - Coal dust accumulation and the body's inflammatory response produce characteristic interstitial changes seen as reticulonodular infiltrates on chest radiograph. *Emphysema* - **Emphysema** would present with **hyperinflated lungs**, **flattened hemidiaphragms**, and **reduced peripheral vascular markings** on CXR. - The CXR here does not demonstrate these features; instead, it shows bilateral reticulonodular opacities consistent with coal workers' pneumoconiosis. *Pulmonary fibrosis* - Although **pulmonary fibrosis** is characterized by reticular opacities, it often progresses to **honeycombing** and **volume loss**, which are not seen here. - The image does not demonstrate features of pulmonary fibrosis. *Cardiac atrophy* - **Cardiac atrophy** refers to the **wasting away of heart muscle** and would not be directly visible or implied by typical chest X-ray findings for a lung disease. - The presented image focuses on lung pathology, and there is no indication of cardiac atrophy.

Q: The chest X-ray of patient shows:

Reticular shadows. ***Reticular shadows*** - The image displays **linear opacities** forming a network or mesh-like pattern within the lung fields, particularly visible in the lower zones. This appearance is characteristic of **reticular shadowing**, often indicative of interstitial lung disease. - These linear opacities represent thickened interstitial structures such as septa or fibrosis. *Emphysema* - Emphysema typically manifests as **hyperinflation** of the lungs, flattened diaphragms, widened intercostal spaces, and often **bullae** (lucent areas without vascular markings). - The chest X-ray provided does not show these features; instead, it shows increased linear markings rather than exaggerated lucency. *Nodular shadows* - Nodular shadows appear as **discrete round or oval opacities** scattered throughout the lung fields, typically seen in conditions like miliary tuberculosis or metastatic disease. - The X-ray shows **linear patterns** rather than discrete nodular opacities. *Consolidation* - Consolidation presents as **homogeneous opacification** of lung parenchyma with air bronchograms, typically seen in pneumonia or pulmonary edema. - The image demonstrates a **reticular pattern** rather than homogeneous dense opacification characteristic of consolidation.

Q: The image shows presence of:

Hydropneumothorax. ***Hydropneumothorax*** - The image shows both **air and fluid levels in the pleural cavity**, indicating a hydropneumothorax. The distinct straight line separating air and fluid is characteristic. - Presence of **air (lucency)** in the superior part of the pleural space and **fluid (opacity)** forming a horizontal line below it confirms this diagnosis. *Pleural effusion* - A pleural effusion would appear as a **homogenous opacity** in the dependent portion of the pleural space, typically blunting the costophrenic angles. - It would not exhibit a distinct **air-fluid level** within the pleural cavity without an associated pneumothorax. *Pneumothorax* - A pneumothorax presents as **air in the pleural space** without fluid, resulting in increased lucency and collapse of lung tissue. - There would be **no fluid level visible**, only air separating the parietal and visceral pleura. *Pneumonia* - Pneumonia would appear as an **area of consolidation** within the lung parenchyma, often ill-defined, and without a clear air-fluid level in the pleural space. - It involves the lung tissue itself, not primarily the pleural space, and would typically present with **air bronchograms** within the consolidated area.

Q: The CT chest of a patient shows:

Crazy pavement pattern. ***Crazy pavement pattern*** - The CT scan shows diffuse ground-glass opacities with superimposed interlobular septal thickening, creating a polygonal reticular pattern — the hallmark of a **crazy paving pattern**. - This pattern indicates a combination of partial airspace filling and interstitial thickening, and is classically seen in conditions such as **Pneumocystis jirovecii pneumonia, pulmonary alveolar proteinosis, COVID-19 pneumonia**, and other causes of combined alveolar and interstitial involvement. *Ground glass pattern* - Pure ground-glass opacity refers to hazy increased attenuation that does **not** obscure underlying bronchial and vascular markings, without superimposed septal thickening. - In this scan, the prominent reticular/septal lines superimposed on the ground-glass opacities elevate the pattern beyond simple ground-glass to a crazy paving pattern. *Honeycomb pattern* - The image does not display the characteristic **thick-walled cystic airspaces** seen in a honeycomb pattern, which typically represents end-stage pulmonary fibrosis. - There are no discrete, clustered cysts with clearly defined walls that define true honeycombing. *Normal scan* - The scan clearly shows widespread **abnormal opacities** throughout both lungs, indicating significant underlying pathology. - A normal chest CT would show uniform lung parenchyma with clear bronchial and vascular markings without any significant areas of increased attenuation.

Q: The CXR shows septal line markings near the costophrenic angle in a patient with a known history of malignancy. Which of the following conditions can produce these marked septal lines? (Recent NEET Pattern 2016-17)

Lymphangitis carcinomatosis. ***Lymphangitis carcinomatosis*** - The image shows **reticulonodular interstitial markings** with preserved lung volumes, particularly prominent near the costophrenic angle, which are classic for **lymphangitis carcinomatosis**. - This condition is caused by the infiltration of **malignant cells into the lymphatic channels** of the lung, leading to thickening of the interlobular septa and a characteristic radiographic appearance. *Pulmonary alveolar proteinosis* - This condition typically presents with diffuse ground-glass opacities and consolidation, often described as a **"crazy-paving" pattern** on CT, which is not seen here. - It involves the accumulation of lipoproteinaceous material within the **alveoli**, rather than lymphatic infiltration. *Lung abscess* - A lung abscess would appear as a **cavitated lesion** with an air-fluid level, indicating necrosis and fluid accumulation, which is distinctly different from the interstitial markings in the image. - It is typically caused by **bacterial infection** and is a focal process, not diffuse interstitial infiltration. *Pneumatocele* - A pneumatocele is a **thin-walled, air-filled cyst** commonly seen after pneumonia in children or trauma, appearing as a clear, defined space on imaging. - It does not present with the diffuse reticulonodular pattern or interstitial thickening characteristic of the image.

Q: A 65-year-old hypertension patient presents with chest pain, difficulty in breathing for 1 hour. Based on the chest X-ray shown below, identify the radiological finding:

Widened mediastinum. ***Widened mediastinum*** - The chest X-ray demonstrates **widening of the mediastinum**, which in the context of acute chest pain in a hypertensive patient raises significant concern for **aortic dissection**. - A mediastinal width greater than 8 cm on an AP chest radiograph is considered abnormal and is a classic radiological sign associated with **acute aortic pathology**, particularly Type A aortic dissection involving the ascending aorta. - In an older patient with a history of hypertension presenting with acute chest pain, widened mediastinum on chest X-ray should prompt urgent further evaluation with **CT angiography** to rule out aortic dissection. *Kerley B lines* - **Kerley B lines** are short, horizontal lines seen in the lung periphery representing thickened interlobular septa, indicative of **interstitial pulmonary edema**. - These are not demonstrated on this radiograph and are not consistent with the primary finding of mediastinal widening. *Hilar lymphadenopathy* - **Hilar lymphadenopathy** appears as enlarged lymph nodes around the hilum of the lungs, indicating conditions like sarcoidosis, tuberculosis, or malignancy. - This is not the finding demonstrated on this radiograph. *Pneumomediastinum* - **Pneumomediastinum** is characterized by the presence of air in the mediastinum, visible on a chest X-ray as a **lucent streak** outlining mediastinal structures. - This is not the finding demonstrated on this radiograph, which shows soft tissue widening rather than air within the mediastinum.

Q: A patient presented with sudden onset difficulty in breathing with RR 28/min, normal blood pressure. X-ray was taken which is given below. What is the diagnosis?

Pneumothorax. ***Pneumothorax*** - The chest X-ray shows **air in the pleural space**, characterized by a visible visceral pleural line and absence of lung markings beyond it in the right hemithorax. - The patient's sudden onset **difficulty in breathing** and **tachypnea (RR 28/min)** are consistent with significant lung pathology like a pneumothorax, which compromises lung function. *Hydro-pneumothorax* - Hydro-pneumothorax would show a **horizontal air-fluid level** in the pleural space, indicating the presence of both air (pneumothorax) and fluid (hydrothorax). - The current image does not demonstrate a **horizontal fluid level**, ruling out hydropneumothorax. *Pleural effusion* - Pleural effusion presents as a **blunting of the costophrenic angles** and a meniscus sign, where fluid conforms to the shape of the thorax. - This image shows **hyperlucency** without a typical meniscus or fluid opacity, ruling out a simple pleural effusion. *Consolidation* - Consolidation refers to the **filling of alveolar spaces with fluid or exudate**, appearing as an opacification within the lung parenchyma. - The image shows **hyperlucency** rather than opacification, which is inconsistent with consolidation.

Q: What is indicated by the 'water bottle appearance' of the heart size?

Pericardial effusion. ***Pericardial effusion*** - The **'water bottle appearance'** (globular cardiac silhouette) on chest X-ray is **classically associated with** a large **pericardial effusion** - Fluid accumulates in the pericardial space surrounding the heart, causing **symmetrical enlargement** of the cardiac shadow in all directions - The cardiac silhouette appears **smooth, globular, and enlarged**, resembling a water bottle lying on its side - Other features include **loss of normal cardiac contours** and a **wide cardiac base** - Note that this radiographic sign has **limited specificity**, as other causes of cardiomegaly can produce a similar globular silhouette - **Echocardiography is required to confirm pericardial effusion** *Dilated cardiomyopathy* - Causes cardiomegaly and can also produce a smooth, globular silhouette that mimics the water-bottle appearance, contributing to the limited specificity of this radiographic sign - Cardiac contours remain visible with **prominent ventricular borders** *Congestive heart failure* - Shows **pulmonary vascular congestion**, pleural effusions, and Kerley B lines in addition to cardiomegaly - Cardiac enlargement is **chamber-dependent** based on underlying etiology - Lacks the smooth, globular silhouette of pericardial effusion *Left ventricular hypertrophy* - Causes **focal left-sided cardiac enlargement** with apical displacement - Maintains **normal cardiac contours** with visible chamber borders - Does not produce generalized globular enlargement

Question 1

The CT chest shows presence of:

Accepted Answer

Bronchiectasis

Answer

Pulmonary alveolar proteinosis

Answer

Aspergillosis

Answer

Pulmonary embolism

Question 2

The image provided represents:

Accepted Answer

CT chest with contrast

Answer

Barium swallow study

Answer

X-ray chest

Question 3

A 35-year-old coal worker presents with difficulty in breathing on exertion for last 2 years. CXR was performed. It shows:

Accepted Answer

Reticulonodular infiltrates

Answer

Emphysema

Answer

Pulmonary fibrosis

Answer

Cardiac atrophy

Question 4

The chest X-ray of patient shows:

Accepted Answer

Reticular shadows

Answer

Emphysema

Answer

Nodular shadows

Answer

Consolidation

Question 5

The image shows presence of:

Accepted Answer

Hydropneumothorax

Answer

Pleural effusion

Answer

Pneumothorax

Answer

Pneumonia

Question 6

The CT chest of a patient shows:

Accepted Answer

Crazy pavement pattern

Answer

Ground glass pattern

Answer

Honeycomb pattern

Answer

Normal scan

Question 7

The CXR shows septal line markings near the costophrenic angle in a patient with a known history of malignancy. Which of the following conditions can produce these marked septal lines? (Recent NEET Pattern 2016-17)

Accepted Answer

Lymphangitis carcinomatosis

Answer

Lung abscess

Answer

Pneumatocele

Answer

Pulmonary alveolar proteinosis

Question 8

A 65-year-old hypertension patient presents with chest pain, difficulty in breathing for 1 hour. Based on the chest X-ray shown below, identify the radiological finding:

Accepted Answer

Widened mediastinum

Answer

Kerley B lines

Answer

Hilar lymphadenopathy

Answer

Pneumomediastinum

Question 9

A patient presented with sudden onset difficulty in breathing with RR 28/min, normal blood pressure. X-ray was taken which is given below. What is the diagnosis?

Accepted Answer

Pneumothorax

Answer

Hydro-pneumothorax

Answer

Pleural effusion

Answer

Consolidation

Question 10

What is indicated by the 'water bottle appearance' of the heart size?

Accepted Answer

Pericardial effusion

Answer

Dilated cardiomyopathy

Answer

Congestive heart failure

Answer

Left ventricular hypertrophy

Chest Radiology — MCQs

Chest Radiology — MCQs

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