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Diabetic microangiopathy in subcutaneous fatty tissue
Journal of Cutaneous Pathology
|August 1, 1987
Summary
Diabetic microangiopathy in subcutaneous tissue, characterized by thickened basal laminae, contributes to membranocystic lesion formation. This study objectively evaluates these changes in diabetic patients, linking them to disease complications.
Area of Science:
- Vascular biology
- Diabetology
- Dermatopathology
Background:
- Diabetic microangiopathy affects small blood vessels.
- Membranocystic lesions (MCLs) are observed in diabetic skin complications.
- The link between subcutaneous microangiopathy and MCL pathogenesis is unclear.
Purpose of the Study:
- To objectively evaluate diabetic microangiopathy in subcutaneous tissue.
- To clarify the relationship between MCL pathogenesis and diabetic microangiopathy.
Main Methods:
- Histological examination of subcutaneous tissue from 23 diabetics and 23 non-diabetics.
- Electron microscopy and morphometric analysis of microvessels.
- Scoring of basal laminae and endothelial cell changes.
Main Results:
- Diabetics showed smaller luminal spaces and larger basal laminae areas in microvessels.
- Significant increases in veil cells, debris, and vacuoles within thickened basal laminae were noted in diabetics.
- MCLs were more frequent in diabetics with retinopathy, neuropathy, and nephropathy, and correlated with larger basal laminae areas.
Conclusions:
- Subcutaneous microangiopathy is a pathological feature of diabetes mellitus.
- Diabetic microangiopathy in subcutaneous tissue contributes to the formation of membranocystic lesions.
- MCLs are associated with microvascular changes and systemic diabetic complications.