Chorioretinitis

Keywords: Retinitis

Causes

Appropriate Tests

Protozoal infection

 

  • Toxoplasmosis, especially
    • Congenital infection
    • Relapsing infection
    • AIDS patients

 

Viral infection

 

  • Cytomegalovirus infection, especially
    • Congenital infection
    • AIDS patients
    • Transplant patients

 

  • Varicella zoster infection

 

  • Herpes simplex virus infection

 

  • Measles (including SSPE)

Measles virus Ab - serum or CSF, as appropriate.

  • Rubella

 

Fungal infection

 

  • Candidiasis, especially
  • IV cannulae
  • IV drug addiction

 

  • Cryptococcal infection

Usually associated with cryptococcal meningitis.

Bacterial infection

 

  • Tuberculosis (usually miliary)

 

  • Syphilis (congenital)

 

Helminth infection

 

  • Toxocara sp infection

Full blood count (eosinophilia).

Ova cysts parasites faeces for associated parasitic infections.

Toxocara Ab.

Other

 

  • Sarcoidosis

Chorioretinitis is often seen in association with CNS sarcoid.