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NBME 24 Answers
A 3-year-old girl is brought to the physician for a ...
Classification of Vascular Lesions
Vascular malformations (flat lesions)
-Salmon patch (also known as nevus simplex or nevus telangiectaticus)
-Port-wine stain (also known as nevus flammeus)
Hemangiomas (raised lesions)
-Superficial hemangioma (also known as capillary nevus hemangioma)
-Deep hemangioma (also known as cavernous hemangioma)
A strawberry hemangioma is normally pink or red (which is why it is named strawberry). The description has a flat purplish lesion which makes me think of a port wine stain on the face. How do you know to think of strawberry hemangioma over port wine based on this question stem?
This sounds more like a nevus simplex, which is very similar to a port wine stain, though it regresses over time.
the age is key here. Newborns have strawberry hemangiomas typically on their face. Sturge-Weber could also be the case but none of the answer choices matched to that description.
I would agree with Sturg Webber nevus flammeus but I also noticed First Aid says it's a non-neoplastic birth mark so I should have known not to pick malignant degeneration or local invasion. Also because capillary hemangiomas don't have to be flat but the nevus flammeus is consistently flat.
But I'm also reading on Wiki that the nevus flammeus doesn't regress so they must be trying to describe strawberry hemangioma even though I don't agree with their color choice...
Maybe (and I can only hope I'm right and the test makers are not -that much of- sadists) they would have made sure to write "in a cranial nerve 5 (either ophthalmic or maxillary) distribution" if it were Sturge-Weber.