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Updated: Aug 18, 2026

Isolation of Human Lymphatic Endothelial Cells by Multi-parameter Fluorescence-activated Cell Sorting
Published on: May 1, 2015
Papillary endothelial hyperplasia and dilated lymphatic vessels in bullous pilomatricoma
Li-Min Lao1, Masanobu Kumakiri, Takahiro Kiyohara
1Departments of Dermatology, Affiliated Second Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China. laolimin@yahoo.com
Abstract:
This is a report of papillary endothelial hyperplasia in a 9-year-old girl with a pilomatricoma showing bullous appearance. Histologically, papillary proliferation of endothelial cells was found within dilated lymphatic endothelium-lined vascular channels overlying a pilomatricoma. The endothelial cells covering the papillae were of a lymphatic endothelial cell nature proved by immunohistochemistry and electron microscopy. Abundant fibrous long-spacing collagen was observed in the connective tissue and fibroblasts within papillae.
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