Clinicopathological Spectrum of Diabetic and Non-diabetic Renal Lesions in Patients with Diabetes Mellitus: An Experience from A Tertiary Care Center

Document Type : Original Research

Authors

1 Department of Pathology, SDM College of Medical Sciences and Hospital, Shri Dharmasthala Manjunatheshwara University, Dharwad, Karnataka, India

2 Department of Nephrology, SDM College of Medical Sciences and Hospital, Shri Dharmasthala Manjunatheshwara University, Dharwad, Karnataka, India

3 Department of Pathology, KLE JGMMMC, Hubballi, a unit of KLE Academy of Higher Education and Research, Belagavi, India

Abstract
Background & Objective: Diabetic patients often develop lesions called non-diabetic renal diseases (NDRD), whose prognostic and therapeutic implications vary from diabetic nephropathy (DN). Since early identification of NDRD is associated with a better prognosis, we aimed to understand its spectrum.
Methods: One hundred and thirty-four patients were included in a cross-sectional study. Their clinical, and laboratory data and indications for biopsy were recorded. Two cores of renal tissue were studied under light microscopy and immunofluorescence; patients were classified into NDRD, NDRD+DN, and DN groups.
Results: Of all the patients studied, five were diagnosed with type 1 diabetes mellitus (DM1), and the rest were type 2 diabetes mellitus (DM2). Overall, the male-to-female ratio was 3:1. The Mean age of NDRD patients was the greatest, and males were predominant in all three groups. CKD was the most common presentation. Except for significantly greater proteinuria and hematuria in the DN and NDRD groups respectively, others were not different. Infection-related glomerulonephritis was the most common lesion among the NDRD+DN group, whereas IgA nephropathy and acute tubulointerstitial nephritis were frequent in the NDRD group.
Conclusion: Based on our findings, renal biopsy should be considered in all those diabetic patients with lesser onset duration presenting with hematuria, no/minimal retinopathy, and minimal proteinuria. A precise diagnosis helps in providing timely therapy for NDRD and prolonging renal and patient survival.

Keywords

Subjects


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Volume 19, Issue 3
Summer 2024
Pages 311-317

  • Receive Date 11 March 2024
  • Revise Date 30 April 2024
  • Accept Date 30 April 2024