Conjunctiva and cornea: Parinaud oculoglandular syndrome: practice question

A Ophthalmology question in the style of the NEET PG paper. Answer it first, then read why the right option is right and why each of the others is wrong.

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Ophthalmology · Conjunctiva and cornea: Parinaud oculoglandular syndrome

Sample item

A 7-year-old with a new kitten has a unilateral red eye with a granulomatous nodule on the conjunctiva, a tender enlarged preauricular lymph node and low-grade fever. Which organism is the usual cause?

Original practice item, not a recalled exam question. Nothing here is recorded.

The answer and the reasoning

C. Bartonella henselae

Parinaud oculoglandular syndrome is unilateral granulomatous conjunctivitis with regional lymphadenopathy. Cat-scratch disease from Bartonella henselae is the commonest cause, with tularaemia, tuberculosis and syphilis less frequent.

Option by option

  • A. Chlamydia trachomatis serovars D to K

    Chlamydia serovars D to K cause adult inclusion conjunctivitis with follicles and mucopurulent discharge, not a granuloma.

  • B. Neisseria gonorrhoeae

    Gonococcus causes hyperacute purulent conjunctivitis with profuse discharge.

  • C. Bartonella henselae (correct)

    Correct. Bartonella henselae from a cat scratch or lick causes granulomatous conjunctivitis with a preauricular node.

  • D. Adenovirus type 8

    Adenovirus causes a follicular conjunctivitis with a preauricular node but no granulomatous nodule.

Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.

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Questions about this Ophthalmology question

What is the answer to this Ophthalmology question?

The best answer is C, Bartonella henselae. Parinaud oculoglandular syndrome is unilateral granulomatous conjunctivitis with regional lymphadenopathy.

Why is "Chlamydia trachomatis serovars D to K" not the answer?

Chlamydia serovars D to K cause adult inclusion conjunctivitis with follicles and mucopurulent discharge, not a granuloma.

Why is "Neisseria gonorrhoeae" not the answer?

Gonococcus causes hyperacute purulent conjunctivitis with profuse discharge.

Why is "Adenovirus type 8" not the answer?

Adenovirus causes a follicular conjunctivitis with a preauricular node but no granulomatous nodule.

What concept does this question test?

It tests Conjunctiva and cornea: Parinaud oculoglandular syndrome in Ophthalmology. Cat-scratch disease from Bartonella henselae is the commonest cause, with tularaemia, tuberculosis and syphilis less frequent.

How hard is this question?

We tag it as an application question: it asks you to use a fact on a patient or a finding. The tag is our own editorial judgement, not an official difficulty rating, so read the reason for every option, not only the answer.

How should I study Conjunctiva and cornea: Parinaud oculoglandular syndrome?

Group the red eye by what to examine and what the pupil does. Then use the flashcards and the other Ophthalmology questions on this site to test what stuck.

Is this a real NEET PG question?

No. It is an original practice item (editorial status: sample, version 1). NextPrep does not publish recalled or leaked questions, and independent faculty review of this item has not been completed yet, so confirm important facts in a standard textbook.