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Follow the Metabolic Damage
Diabetes and parathyroid pathology for NEET-PG: type 1 insulitis vs type 2 islet amyloid, Kimmelstiel-Wilson nodules, hyperparathyroidism, and brown tumours.
MedNext Academy | 3 min read
Clinically reviewed by Dr Shameer Deen, MBBS, MS, MRCS
Follow the Metabolic Damage
Diabetes and parathyroid pathology for NEET-PG: type 1 insulitis vs type 2 islet amyloid, Kimmelstiel-Wilson nodules, hyperparathyroidism, and brown tumours.
The classification and complications of diabetes mellitus and the pathology of hyperparathyroidism.
High-yield lines
- Type 1 diabetes results from autoimmune destruction of pancreatic beta cells with absolute insulin deficiency.
- Type 2 diabetes results from insulin resistance with relative insulin deficiency and is linked to obesity.
- Type 1 diabetes shows insulitis with lymphocytic infiltration of islets.
- Type 2 diabetes shows islet amyloid deposition derived from islet amyloid polypeptide.
- Diabetic microvascular complications include retinopathy, nephropathy, and neuropathy.
- Diabetic nephropathy shows nodular Kimmelstiel-Wilson glomerulosclerosis and basement membrane thickening.
- Diabetes accelerates atherosclerosis, causing macrovascular disease and gangrene.
- Chronic hyperglycaemia causes nonenzymatic glycation and advanced glycation end products.
- Primary hyperparathyroidism is most often caused by a parathyroid adenoma producing hypercalcaemia.
- Primary hyperparathyroidism causes bones, stones, abdominal groans, and psychic moans.
- Osteitis fibrosa cystica with brown tumours results from severe hyperparathyroidism.
- Secondary hyperparathyroidism is a compensatory response to chronic kidney disease and hypocalcaemia.
Mapped competency codes
- PA32.4
- PA32.5
Continue into the full chapter
This summary maps to PA32-endocrine-system.
Frequently Asked Questions
How do type 1 and type 2 diabetes differ in mechanism?
Type 1 is autoimmune destruction of beta cells with absolute insulin deficiency, while type 2 is insulin resistance with relative insulin deficiency linked to obesity.
What is the renal lesion of diabetes?
Diabetic nephropathy with nodular Kimmelstiel-Wilson glomerulosclerosis and diffuse basement membrane thickening.
What is the most common cause of primary hyperparathyroidism?
A parathyroid adenoma, which autonomously secretes parathyroid hormone and produces hypercalcaemia.
What is osteitis fibrosa cystica?
The bone disease of severe hyperparathyroidism, with increased osteoclastic resorption producing cystic spaces and brown tumours.
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