Related Experiment Video
Updated: May 3, 2026
10:06
Efficient Method for Imaging Murine Lungs that Preserves Spatial Dynamics of Fungal Spores in the Airways
Published on: December 13, 2024
980
[Pulmonary nodules and arachnophobia].
B Colinet1, J-L Dargent2, A Fremault1
1Service de pneumologie, Grand hôpital de Charleroi, 6, rue de la Duchère, 6060 Gilly, Belgique.
Revue Des Maladies Respiratoires
|January 28, 2014
Summary
A rare case of toxic pulmonary nodules caused by insecticide inhalation resolved after exposure cessation. This highlights the importance of considering environmental factors in diagnosing lung abnormalities.
Area of Science:
- Pulmonology
- Toxicology
- Environmental Health
Background:
- Pulmonary nodules necessitate investigation to rule out neoplastic causes, often requiring invasive procedures.
- Toxic etiologies for pulmonary nodules are uncommon but warrant consideration.
- Differential diagnosis for lung nodules includes environmental exposures.
Observation:
- A patient presented with incidental pulmonary nodules, predominantly in the right lung.
- Nodules were approximately 1cm, non-cavitating, without calcification, and sometimes haloed.
- A comprehensive review suggested an inhaled irritant, specifically an insecticide, as the cause.
Findings:
- Complete resolution of pulmonary nodules occurred after discontinuing insecticide use.
- Pathological examination revealed bronchiolitis obliterans with organizing pneumonia, non-necrotizing granulomas, and lipid vacuoles.
- The identified insecticide contained piperonyl butoxide, esbiothrine, and permethrin.
Implications:
- Environmental exposures, such as insecticide use, can cause significant pulmonary pathology.
- Considering toxicological assessments is crucial in the workup of unexplained pulmonary nodules.
- Non-invasive management by removing the irritant led to favorable outcomes, avoiding invasive procedures.
Keywords:
Exposition professionnelleIatrogenicIatrogéniqueNodule pulmonaireOccupational exposurePulmonary nodulePulmonary toxicityToxicité pulmonaireMore Related Videos
Related Concept Videos
01:09Preparedness and Phobias
476
Human fear responses to certain stimuli, such as darkness, heights, deep water, and blood, can often arise despite the absence of direct negative experiences. This phenomenon is rooted in evolutionary psychology, which posits that humans have developed a predisposition to fear stimuli that historically posed significant survival threats. This predisposition, known as preparedness, suggests that early humans who developed a fear of potentially dangerous entities, such as venomous snakes and...
476
01:17Other Pulmonary Disorders
1.8K
Respiratory disorders encompass a range of conditions with varying levels of severity. Asthma, marked by chronic airway inflammation and hypersensitivity, is one such condition. It can lead to airway obstruction due to factors like bronchial spasms, mucosal edema, increased mucus secretion, or epithelial damage. Asthma triggers are diverse, ranging from allergens to emotional upset, and treatment focuses on both immediate relief through bronchodilators and long-term inflammation suppression.
1.8K
01:26Physical Properties of Amines
3.2K
Amines with low molecular weight are usually gaseous at room temperature, while those with high molecular weight are liquid or solids in nature. Usually, low molecular weight amines have a rotten fish-like smell. Diamines typically have a pungent smell. For instance, cadaverine and putrescine, depicted in Figure 1, are two molecules responsible for decaying tissue.
3.2K
01:31Pulmonary Tuberculosis III
1.8K
Tuberculosis (TB) is a contagious infection primarily affecting the lung parenchyma but which can also affect other body parts. TB can be classified based on disease development, presentation, and the affected anatomical site.
The first classification is based on the development of the disease, and it includes the following categories:
The first classification is based on the development of the disease, and it includes the following categories:
1.8K
01:17Gross Anatomy of the Lungs
6.2K
The lungs are a pair of vital organs connected to the trachea via the left and right bronchi. The base of these organs meets the dome-shaped muscle known as the diaphragm. Encased by the pleurae, the lungs contact the mediastinum. The right lung is shorter yet wider, and has a larger volume than the left lung. The left lung has an indentation known as the cardiac notch. The superior region of the lungs is referred to as the apex, whereas the base is the lower region near the diaphragm. The...
6.2K
01:28Pulmonary Tuberculosis II
2.5K
Tuberculosis, or TB, is a bacterial infectious disease caused by Mycobacterium tuberculosis. While its primary impact is on the lungs, leading to pulmonary tuberculosis, it can also affect various other organs, a condition referred to as extrapulmonary tuberculosis.
Here is a detailed explanation of its pathophysiology:
Transmission: The process begins when a person inhales droplet nuclei containing M. tuberculosis. These are typically released into the air when an individual with pulmonary or...
Here is a detailed explanation of its pathophysiology:
Transmission: The process begins when a person inhales droplet nuclei containing M. tuberculosis. These are typically released into the air when an individual with pulmonary or...
2.5K