What Causes Toxoplasmosis In A Patient With Weak Immune System?
Can occur due to any immune suppression cause. Ocular form is different.
Detailed Answer:
I read your question carefully and I understand your concern.
Toxoplasmosis can develop in any patient who has a weak immune system. Naturally HIV is the most common cause of suppressed immunity, hence we see CNS toxoplasmosis mainly in HIV patients. However it can develop in other causes of immune suppression such as prolonged treatment with corticosteroids, malnutrition, malignancies.
Since I see that you have been told to have retinal involvement though, I would like to precise that ocular toxoplasmosis differs from CNS toxoplasmosis because the majority of the cases are not due to a recently acquired infection, not necessarily in a immunosuppressed patient. This type of toxoplasmosis occurs most commonly due to reactivation of toxoplasmosis which was contracted at birth, a reactivation of congenital toxoplasmosis.
I remain at your disposal for other questions.
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Detailed Answer:
Thank you for the additional info. Ocular toxoplasmosis does have a tendency to make relapses, it reoccurs in two thirds of patients, so I am not surprised that you have had repeated episodes.
As for the persisting symptoms, as I can not examine you I am gonna have to take the word of my colleagues for the fact that it is not active anymore. However the fact that it is not active anymore does not mean it hasn't left any damage behind. The infection may have left a scar on your retina, some cells may have been irreparably damaged and hence explain that shaded line, the fact it is not active means that it is not causing further damage.
I understand that still leaves the issue of the pain. It can be due to the inflammation not having subsided yet, but since after so many months it should have subsided, if it is increasing in intensity an MRI may be scheduled. In the meantime over the counter painkillers like Ibuprofen may be continued.
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Detailed Answer:
Hello again and sorry for the late answer.
As I said before I too can not explain the persistent pain given that the infection was deemed not active. Since several months have passed inflammation should have subsided. The fact you are again under steroid treatment adds to that being uncommon.
It is for that reason that I recommended to schedule an MRI if symptoms persist, to exclude the possibility of a brain lesion, whether related to the toxo or not.
I hope you'll get better soon.