Renal involvement in primary antiphospholipid syndrome

Area of Science:

• Nephrology
• Autoimmunology
• Pathology

Background:

• Antiphospholipid syndrome (APS) is an autoimmune disorder causing thrombosis and pregnancy issues.
• Kidney involvement is significant in both primary and secondary APS.
• Antiphospholipid syndrome nephropathy (APSN) is a specific renal manifestation.

Purpose of the Study:

• To review renal involvement in primary APS.
• To describe the histological characteristics of APSN.
• To highlight APSN as a diagnostic indicator for primary APS.

Main Methods:

• Literature review focusing on renal manifestations of primary APS.
• Analysis of histological patterns in APSN.
• Correlation of morphological lesions with primary APS diagnosis.

Main Results:

• APSN presents as a vascular nephropathy.
• Key histological findings include vaso-occlusive lesions in small vessels.
• Fibrous intimal hyperplasia, recanalizing thrombi, and focal atrophy are characteristic of APSN.

Conclusions:

• APSN is a distinct histological pattern in primary APS.
• The described morphological lesions are suggestive of primary APS.
• Understanding APSN is crucial for diagnosing and managing renal complications in APS.