juvenile hyalin fibromatosis
Definition: a rare recessively inherited deforming disorder of head, neck, and generalized cutaneous nodules or tumors in children with normal mentality; the lesions consist of fibroblasts separated by an eosinophilic hyalin stroma composed mostly of glycosaminoglycans.
Synonym(s): systemic hyalinosis
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Examples: glitazone, GI cocktail, etc.