Related Experiment Video
Updated: Feb 9, 2026
08:59
The Other End of the Leash: An Experimental Test to Analyze How Owners Interact with Their Pet Dogs
Published on: October 13, 2017
18.3K
Pulmonary Granulomas Associated with PAS-Positive Bodies in Brachycephalic Dogs
L H Billups1, S K Liu1, D F Kelly1
1Veterinary Pathology Division, Armed Forces Institute of Pathology, Washington, D.C.; The Animal Medical Center, New York, N. Y.; and the School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pa.
Veterinary Pathology
|June 10, 2018
Summary
Incidental pulmonary granulomas were found in 18 dogs, primarily brachycephalic breeds. These lesions suggest an inhalation or aspiration pneumonia, potentially linked to brachycephalic anatomy and upper respiratory issues.
Area of Science:
- Veterinary Pathology
- Canine Respiratory Diseases
Background:
- Pulmonary granulomas are uncommon findings in dogs.
- Brachycephalic breeds may have unique predispositions to respiratory conditions.
Purpose of the Study:
- To characterize incidental pulmonary granulomas in dogs.
- To investigate potential causes and predisposing factors for these lesions.
Main Methods:
- Necropsy examination of 18 dogs with pulmonary lesions.
- Histopathological evaluation of lung tissues.
- Periodic acid-Schiff (PAS) staining and histochemical analysis of lesion components.
Main Results:
- Multifocal granulomas were observed in bronchi and subpleural tissues.
- PAS-positive bodies, suggestive of a calcium-lipid-mucopolysaccharide complex, were present.
- Lesion distribution indicated potential inhalation or aspiration etiology.
Conclusions:
- Pulmonary granulomas in dogs may result from inhalation or aspiration.
- Brachycephalic breeds might be predisposed due to their anatomy and potential concurrent respiratory disease.
More Related Videos
Related Concept Videos
02:32Position-effect Variegation
7.1K
In 1928, a German botanist Emil Heitz observed the moss nuclei with a DNA binding dye. He observed that while some chromatin regions decondense and spread out in the interphase nucleus, others do not. He termed them euchromatin and heterochromatin, respectively. He proposed that the heterochromatin regions reflect a functionally inactive state of the genome. It was later confirmed that heterochromatin is transcriptionally repressed, and euchromatin is transcriptionally active chromatin.
7.1K
01:31Position and Displacement
26.5K
The position of an object defines its location relative to a convenient frame of reference at any particular time. A frame of reference is an arbitrary set of axes from which the position and motion of an object are described. Earth is often used as a frame of reference, and we often describe the position of an object as it relates to stationary objects on Earth. For example, a rocket launch could be described in terms of the position of the rocket with respect to Earth as a whole. On the other...
26.5K
01:03Serial Position Effect
556
The serial position effect is a cognitive phenomenon where individuals are more likely to recall the first and last items in a list compared to those in the middle. This effect is divided into the primacy effect and the recency effect. The primacy effect is observed when the initial items in a list are remembered better. This occurs because these items are rehearsed more frequently or receive more elaborative processing, allowing them to be encoded into long-term memory more effectively. For...
556
01:29Position Vectors
2.0K
A position vector is a fundamental concept in mathematics that helps determine the position of one point with respect to another point in space. It is a vector that describes the direction and distance between two points. Position vectors are highly useful in the field of math and science, as they help represent spatial relationships and make calculations easier.
For instance, we want to locate a point P(x, y, z) relative to the origin of coordinates O. In that case, we can define a position...
For instance, we want to locate a point P(x, y, z) relative to the origin of coordinates O. In that case, we can define a position...
2.0K
01:11Anatomical Positions
20.5K
In anatomy, several standard anatomical positions are used as references for describing the position and orientation of different body parts. These positions help provide a common frame of reference when discussing anatomical structures. The anatomical position is the standard reference point for describing the body's position and orientation. In this position:
The body is upright, facing forward, and standing erect.
The feet are parallel and flat on the floor.
The arms are hanging by the...
The body is upright, facing forward, and standing erect.
The feet are parallel and flat on the floor.
The arms are hanging by the...
20.5K
00:58Positive, Negative, and Zero Work
22.2K
Work is done on an object when energy is transferred to the object. In other words, work is done when a force acts on a body that undergoes a displacement from one position to another. By definition, the work done by a force is the integral of the force with respect to the displacement along its path. Forces can vary as a function of position, and displacements can occur along various paths between two points. The magnitude of a force multiplied by the cosine of the angle that the force makes...
22.2K