Search results
Results From The WOW.Com Content Network
Toxoplasma chorioretinitis, more simply known as ocular toxoplasmosis, is possibly the most common cause of infections in the back of the eye (posterior segment) worldwide. The causitive agent is Toxoplasma gondii, and in the United States, most cases are acquired congenitally. The most common symptom is decreased visual acuity in one eye.
Histoplasmosis is a fungal infection caused by Histoplasma capsulatum. [ 2 ] [ 3 ] Symptoms of this infection vary greatly, but the disease affects primarily the lungs . [ 4 ] Occasionally, other organs are affected; called disseminated histoplasmosis, it can be fatal if left untreated.
Toxoplasmosis is a parasitic disease caused by Toxoplasma gondii, an apicomplexan. [3] Infections with toxoplasmosis are associated with a variety of neuropsychiatric and behavioral conditions. [8] Occasionally, people may have a few weeks or months of mild, flu-like illness such as muscle aches and tender lymph nodes. [1]
Chorioretinitis is an inflammation of the choroid (thin pigmented vascular coat of the eye) and retina of the eye. It is a form of posterior uveitis. Inflammation of these layers can lead to vision-threatening complications. If only the choroid is inflamed, not the retina, the condition is termed choroiditis. [1]
Histoplasmosis: Histoplasmosis can be diagnosed by samples containing the fungus taken from sputum (via bronchoalveolar lavage), blood, or infected organs. In the majority of immunocompetent individuals, histoplasmosis resolves without any treatment.
Presumed ocular histoplasmosis syndrome (POHS) is a syndrome affecting the eye, which is characterized by peripheral atrophic chorioretinal scars, atrophy or scarring adjacent to the optic disc and maculopathy. The loss of vision in POHS is caused by choroidal neovascularization.
Retinitis is inflammation of the retina in the eye, which can permanently damage the retina and lead to blindness. The retina is the eye's "sensing" tissue. Retinitis may be caused by a number of different infectious agents. Its most common form, called retinitis pigmentosa, has a prevalence of one in every 2,500–7,000 people.
Dividing T. gondii parasites. Toxoplasma gondii (/ ˈ t ɒ k s ə ˌ p l æ z m ə ˈ ɡ ɒ n d i. aɪ,-iː /) is a species of parasitic alveolate that causes toxoplasmosis. [3] Found worldwide, T. gondii is capable of infecting virtually all warm-blooded animals, [4]: 1 but felids are the only known definitive hosts in which the parasite may undergo sexual reproduction.