Question

All are true about congenital Toxoplasmosis EXCEPT

• A. Chorioretinitis
• B. Conjunctivitis
• C. Hydrocephalus
• D. Cerebral calcification

Hint:

The eye lesion of congenital toxoplasmosis is at the retina, not the conjunctiva.

Answer 1

The Correct Option is B

Step 1: Congenital toxoplasmosis occurs when the mother acquires a primary Toxoplasma infection (clinical or asymptomatic) during pregnancy or within 6 months before conception. Step 2: As gestational age rises, the risk of transmission to the fetus increases (maximum in the third trimester), but the severity of fetal damage falls, so late-transmitted infants are often asymptomatic. Step 3: The recognised features include hydrocephalus, diffuse cerebral calcification, hepatosplenomegaly, mental retardation, myocarditis, lymphadenitis, microcephaly, chorioretinitis, pneumonitis and multiorgan failure. Step 4: Chorioretinitis, hydrocephalus and cerebral calcification (the classic triad) are all genuine features, so they are true. Conjunctivitis is not a feature of congenital toxoplasmosis, making it the EXCEPTION and the correct answer.