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Updated: May 9, 2026

Non-Invasive Visualization of Nailbed Microvascular Morphology in Mice Using Capillaroscopy
Published on: February 28, 2025
Nailfold capillary abnormalities in sclerodermatous chronic GVHD.
H M A Hofstee1, T T de Waal, S Zweegman
1Department of Internal Medicine, VU University Medical Center, Amsterdam, The Netherlands.
Sclerodermatous chronic GVHD (cGVHD) does not exhibit the nailfold capillary abnormalities seen in systemic sclerosis (SSc). This suggests microvascular damage is not involved in cGVHD, and nailfold videocapillaroscopy is not useful for its early detection.
Area of Science:
- Dermatology
- Hematology
- Microcirculation Research
Background:
- Chronic graft-versus-host disease (cGVHD) can cause skin changes similar to systemic sclerosis (SSc).
- Capillary damage is an early feature of SSc, marked by nailfold capillary abnormalities.
- It remains unknown if sclerodermatous cGVHD shares these microvascular changes.
Purpose of the Study:
- To investigate the presence of nailfold capillary abnormalities in patients with sclerodermatous cGVHD.
- To compare microvascular findings in cGVHD patients with those in SSc patients and healthy controls.
Main Methods:
- Nailfold videocapillaroscopy (NVC) was employed to assess capillary morphology, density, and loop dimensions.
- The study included 14 patients with sclerodermatous cGVHD, 14 age- and sex-matched SSc patients, and 14 healthy controls.
Main Results:
- All SSc patients displayed severe nailfold capillary abnormalities.
- No significant capillary abnormalities were observed in cGVHD patients or healthy controls.
- cGVHD patients showed no difference in capillary density or loop dimensions compared to controls, but differed significantly from SSc patients.
Conclusions:
- Sclerodermatous cGVHD patients lack the characteristic microvascular abnormalities found in SSc.
- Capillary damage does not appear to be a key factor in the pathophysiology of sclerodermatous cGVHD.
- Nailfold videocapillaroscopy is not suitable for the early diagnosis of sclerodermatous cGVHD.
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