Question:medium
Which of the following most commonly presents with bilateral proptosis in children?
Which of the following most commonly presents with bilateral proptosis in children?
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Bilateral orbital involvement in a child points to a myeloid leukaemic deposit, the chloroma.
Updated On: Jun 24, 2026
- Cavernous haemangioma
- Chloroma
- Fibrous histiocytoma
- Pleomorphic adenoma
Show Solution
The Correct Option is B
Solution and Explanation
Lock onto the descriptor bilateral in a child. A lesion that involves both orbits at once is unlikely to be a solitary, slow benign mass; it is far more likely to be a systemic malignancy depositing in both orbits.
That description fits the chloroma (granulocytic sarcoma), a solid mass of immature myeloid cells linked to acute myeloid leukaemia. Chloromas have a predilection for the paediatric orbit and characteristically appear on both sides, so they are the classic cause of bilateral proptosis in children.
Now eliminate the others, all of which are essentially one-sided, localized growths typical of adults rather than children: cavernous haemangioma is the commonest benign orbital tumour of adults and is unilateral; pleomorphic adenoma is a unilateral lacrimal gland tumour of adults; and fibrous histiocytoma is again a localized, usually unilateral orbital lesion. Only the chloroma satisfies both bilateral and paediatric, so it is the answer.
\[\boxed{\text{Chloroma}}\]
That description fits the chloroma (granulocytic sarcoma), a solid mass of immature myeloid cells linked to acute myeloid leukaemia. Chloromas have a predilection for the paediatric orbit and characteristically appear on both sides, so they are the classic cause of bilateral proptosis in children.
Now eliminate the others, all of which are essentially one-sided, localized growths typical of adults rather than children: cavernous haemangioma is the commonest benign orbital tumour of adults and is unilateral; pleomorphic adenoma is a unilateral lacrimal gland tumour of adults; and fibrous histiocytoma is again a localized, usually unilateral orbital lesion. Only the chloroma satisfies both bilateral and paediatric, so it is the answer.
\[\boxed{\text{Chloroma}}\]
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