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Updated: May 25, 2026

Prospective, Randomized, and Controlled Study of a Human Umbilical Cord Mesenchymal Stem Cell Injection for Treating Diabetic Foot Ulcers
Published on: March 3, 2023
An ulceronecrotic foot lesion in a patient with essential thrombocythemia: successful treatment with hydroxyurea
1Department of Dermatology, Nippon Medical School, Tokyo, Japan.
Abstract:
The patient was a 47-year-old woman with a painful ulcer that had appeared on the right 5th toe two weeks before she visited our hospital. Histopathological examination showed that thrombi were present in small blood vessels in the dermis and pancytosis was detected in a blood test, suggesting polycythemia-associated ulceration of the toe. Essential thrombocythemia was diagnosed based on bone marrow puncture and chromosomal test findings. Platelet count and the ulcer were improved by oral hydroxyurea.
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