The Journal of dermatology
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Case Reports
Development of Kasabach-Merritt phenomenon following vaccination: More than a coincidence?
Kasabach-Merritt phenomenon (KMP) occurred uniquely in patients with kaposiform hemangioendothelioma (KHE) and tufted angioma (TA). We report the clinical characteristics of two patients with KHE involving the right upper arm. The patients demonstrated rapid enlargement of the lesion with severe KMP shortly after vaccination. ⋯ The patients showed a quick normalization of the platelet level. The follow-up examination revealed that the size of the mass was significantly decreased. This report raises the intriguing possibility that extrinsic factors may contribute to the development of KMP in the context of an already existing KHE.
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Letter Case Reports
Type 1 diabetes in a melanoma patient treated with ipilimumab after nivolumab.