Wednesday, February 25, 2009

IAC Pathology

MASTOIDITIS

GENERAL INFORMATION
The pathology for the IAC portion I have chosen to do is Mastoiditis which sounds pretty painful. Mastoiditis is exactly what is sounds like. It is the inflammation of the mastoid air cells that are in the temporal bone. Someone can have acute or chronic mastoiditis. Chronic mastoiditis usually is latent and does not show up for a while. It is usually associated with a tumor of the squamous epithelium called cholesteatoma formations. These tumors will cause the epithelium to grow and change the function of the tissue and bone.

CAUSES OF MASTOIDITIS
Some causes of mastoiditis come from strands of bacteria. Some of them include: Hemophilus Influenzae, Staphylococci, and pneumococcus. Mastoiditis most commonly comes from chronic otitis media which is an inflammation of the middle ear. When the otitis media becomes severe, it starts to affect the mastoid air cells and starts to inflame them as well.

SYMPTOMS
Some of the symptoms of mastoiditis first of all is aches and pains around the mastoid area.
Fever could possibly be a symptom, but it will not be very high. Possible hearing loss could develop as it began to grow more serious, and also edema in the tympanic membrane is a significant sign of mastoiditis.
DIAGNOSIS
Ways to diagnose if someone has mastoiditis, is to either to a CT or MRI scan. CT images will appear more clearer, but most of the time MRI's will be preferred. If worse comes to worse they could potentially do an exploratory surgery to figure out the problem.

TREATEMENT
Mastoiditis can be prevented by taking antibiotics when receiveing an ear infection, or seeking medical attention promptly. If mastoiditis is suspected, the patient should be admitted into the hospital so tests can be run and they should have IV fluids of antibiotics for 24-48 hours.







MRI Axial T2 Weighted Image of Mastoiditis

MRI Diffusion Weighted Image of Mastoiditis

Tuesday, February 17, 2009

Neurocysticercosis

CT/MRI PATHOLOGY



GENERAL INFORMATION.

I chose to do my brain pathology over Neurocysticercosis, Aka worms in the brain. This disease is very rare and is caused by a build up of a particular tapeworm in the body. The specific name of this tapeworm is called Taenia Solium, which is a type of tapeworm you can get from eating uncooked pork. This tapeworm can also enter the body by eating contaminated food and or drinking contaminated water. This disease usually occurs in Asia, Africa, etc, that uses human feces to fertilize their farmlands. When humans accidentally come in contact with the feces, they ingest the eggs of the tapeworm, and it then begins to grow in the body (webmd). There are stil quite a few cases in the United States with this disease.


SYMPTOMS

There are some symptoms that occur when someone receives Neurocysticercosis. Seizures, headaches, confusion, feeling a sense of dis balance can occur. Also, if the cysts begin to move into the brain into the fourth ventricle, it could cause hydrocephalus, (water in the brain). These symptoms could occur months or years later and if the disease gets bad enough, death can possibly occur once the worms start to dye off and the brain begins to swell (emedicine.com)


DIAGNOSIS

There are a couple of ways this can be diagnosed. MRI and CT are the two most common ways to find worms in the brain. The technologist in these areas might ask where the patient has been traveling and or what the patient has been eating. MRI and CT scans will be able to tell how many cysts are in the brain or other parts of the body. (medterms.com)


TREATEMENT

There are a few types of treatement given to those who have Neurocysticercosis. A combination of Anti-Parasitic and Anti-Inflammatory drugs usually cure the most acute cases of this disease. If there are several cysts in the brain, surgery will be done to remove the cysts. As the worm dies, the lesion shrinks and symptoms will start to disappear if all goes well.



MRI Image of the brain with Neurocysticercosis