A calcified granuloma is an area of inflammation in tissue that has calcified over time until it has the same density as bone. The most common cause for a granuloma in the lungs is a fungal infection called histoplasmosis.Know More
Calcified granulomas in the lung are not typically dangerous; they usually do not even cause signs or symptoms. Most granulomas in the lung are found accidentally during routine chest X-rays. Once a granuloma is found, additional imaging by X-ray or computerized tomography is needed to ensure that the spot on the X-ray is a granuloma and not a tumor, which look similar on scans. A granuloma in the lung does not specifically require treatment; however, if the granuloma was caused by a histoplasmosis infection, the infection is treated unless it has already cleared.
Histoplasmosis is an infection caused by inhaling airborne mold spores that originate in bird and bat droppings. Many of these infections occur in the upper Midwest and Ohio river valleys. Most people who acquire this infection never even know that they are sick as it does not cause symptoms, and a healthy immune system can quickly eliminate the fungus. A histoplasmosis infection can become very serious and require hospitalization in young children and adults with compromised immune systems.Learn more about Human Anatomy
Elastic connective tissue is a technical term for body tissue that contains a large amount of elastin, one of the proteins that make up connective tissue in general. Elastin is the protein that allows for tissue to regain its shape after being compressed or warped.Full Answer >
Dense regular connective tissue is comprised of collagen fibers. The collagen fibers are densely packed together and arranged in a parallel manner. Dense regular connective tissue is found throughout the human body.Full Answer >
The primary function of meristematic tissue is to perform mitosis. Meristematic tissues have small, thin walled cells that lack a central vacuole and have no specialized features.Full Answer >
Nervous tissue is found in peripheral nerves throughout the body and in the organs of the central nervous system, the brain and spinal cord. Nerve tissue is composed of neurons, which are specialized cells able to react to stimuli by sending a signal down a long strand of cell known as an axon. Nervous tissue is responsible for receiving information from the senses, processing it and sending out instructions.Full Answer >