Clinicopathologic profile of glomerular diseases associated with autoimmune thyroiditis

Kunal Gandhi, Karamvir Godara, Dhananjai Agrawal, Vinay Malhotra, Pankaj Beniwal, Amith Dsouza

Thyroid Research and Practice 2017 14(2):71-74

Introduction: Thyroid hormones are known to influence renal function, development, and renal hemodynamics. In this study, we aimed to de ne the frequency and characteristics of various glomerular diseases associated with autoimmune thyroiditis. Methods: We reviewed retrospectively 36 patients with autoimmune thyroiditis referred for evaluation of proteinuria, hematuria, and/or renal impairment. Renal biopsy was performed in 32 patients and was examined with light microscopy and immunofluorescence. Six months follow-up data of 22 patients was reviewed. Results: The mean age of study population was 43.6 years. Most of them were females (n = 28). Mean duration of hypothyroidism (HT) was 1.5 years. Hypertension was seen in 16 patients and deranged renal function (estimated glomerular filtration rate <60 ml/min/1.73 m2) in 18 with a mean serum creatinine of 1.28 mg/dl at time of biopsy. 10 patients presented with nephrotic syndrome, 33 presented with isolated proteinuria and 22 presented with hematuria with or without significant proteinuria The most common histopathologic finding was membranous nephropathy (MGN) (n = 16), followed by minimal-change nephropathy (n = 5), focal segmental glomerulosclerosis (n = 5), immunoglobulin A nephropathy (n = 3), amyloidosis (n = 2), and membranoproliferative glomerulonephritis (n = 1). Membranous nephropathy was the most common finding inn patients with the nephrotic syndrome. Conclusion: Glomerular pathologies associated with HT are diverse and similar to those found in the general population; therefore, renal biopsy should be performed in cases with progressive renal failure or urinary abnormalities.

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