Vesiculobullous disorders: lymphangioma circumscriptum: practice question

A Dermatology 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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Dermatology · Vesiculobullous disorders: lymphangioma circumscriptum

Sample item

A child has had clusters of clear, frogspawn-like vesicles on the shoulder since infancy, some turning dark red or black from bleeding into them. Which pathology underlies this lesion?

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

The answer and the reasoning

A. Dilated lymphatic channels in the papillary dermis

Lymphangioma circumscriptum is a lymphatic malformation in which dilated superficial lymphatic channels in the papillary dermis communicate with deeper cisterns. This gives clear vesicles that can leak or bleed. Complete cure needs excision of the deeper component, and recurrence is common after superficial treatment.

Option by option

  • A. Dilated lymphatic channels in the papillary dermis (correct)

    Correct. Dilated papillary lymphatics produce the clear, frogspawn vesicles.

  • B. Acantholysis of suprabasal keratinocytes

    Suprabasal acantholysis causes fragile blisters in pemphigus and not persistent clustered vesicles from infancy.

  • C. Eccrine duct cysts in the dermis

    Eccrine duct cysts give small clear cysts without bleeding and without a lymphatic connection.

  • D. Dilated capillary loops in the papillary dermis

    Dilated capillary loops would give red-purple vascular lesions rather than clear fluid vesicles.

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.

More Dermatology questions

Questions about this Dermatology question

What is the answer to this Dermatology question?

The best answer is A, Dilated lymphatic channels in the papillary dermis. Lymphangioma circumscriptum is a lymphatic malformation in which dilated superficial lymphatic channels in the papillary dermis communicate with deeper cisterns.

Why is "Acantholysis of suprabasal keratinocytes" not the answer?

Suprabasal acantholysis causes fragile blisters in pemphigus and not persistent clustered vesicles from infancy.

Why is "Eccrine duct cysts in the dermis" not the answer?

Eccrine duct cysts give small clear cysts without bleeding and without a lymphatic connection.

Why is "Dilated capillary loops in the papillary dermis" not the answer?

Dilated capillary loops would give red-purple vascular lesions rather than clear fluid vesicles.

What concept does this question test?

It tests Vesiculobullous disorders: lymphangioma circumscriptum in Dermatology. This gives clear vesicles that can leak or bleed. Complete cure needs excision of the deeper component, and recurrence is common after superficial treatment.

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 Vesiculobullous disorders: lymphangioma circumscriptum?

Learn each condition by its primary lesion, site and signature sign. Then use the flashcards and the other Dermatology 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.