You know what it looks like… but what is it called?
TAKE THE QUIZ“Letterer-Siwe”
We have one entry that includes the term Letterer-Siwe.
Letterer-Siwe disease
noun: an acute often fatal disease of young children that is marked by proliferation of Langerhans cells and is characterized especially by fever, anemia, hepatosplenomegaly, and a eczematous skin rash
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Merriam-Webster unabridged





