cqvip:A cutaneous mastocytoma excised from a 6-month-old male infant was found to have unusual massive eosinophilic infiltrates. The mast cells were identified wi th the aid of immunohistochemistry with antibodies to tryptase and KITprotein(CD 117). Massive eosinophilic infiltration in a cutaneous tumor could be a diagnost ic clue of an eosinophil-rich mastocytoma.
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