Calcification in necrotic tissue is called –
Correct Answer: Dystrophic calcification
Description: Amyloidosis is the extracellular deposition of insoluble protein fibrils.
AL- Primary systemic amyloidosis
AA- Secondary amyloidosis
AF- Familial
Aβ2M- In ESRD
Diagnosed by abdominal fat pad aspiration showing apple green birefringence by polarized light microscopy with Congo red stain
High ESR, High ALP
Serum Immunofixation electrophoresis (SIFE), UIFE-sensitive to detect light chains (Lamda more common)
Kidneys- most common involved. Nephrotic range proteinuria, azotemia seen Heart- second common organ; restrictive cardiomyopathy, low voltage complexes in ECG, sparkly appearance on ECHO heart
Peripheral sensory neuropathy, carpal tunnel syndrome
Large tongue, raccoon-eye sign-Factor X deficiency^ bleeding)
Treatment- AL- Melphalan. dexamethasone, lenalidomide & bortezomib;
HDM/SCT- Autologous stem cell transplantation after high-dose melphalan
High BNP. pro-BNP, troponin T & I in cardiac involvement, used for prognosis too.
AA Amyloidosis: secondary to chronic infections - tuberculosis, SABE or inflammatory conditions like RA, IBD, Castleman's disease
Treat the primary disease, TNF & IL -1 antagonist.
The new drug - Eprodisate for renal AA
AF Amyloidosis: AD, mutant TTR (transthyretin/prealbumin)
° Peripheral & autonomic neuropathy
° Cardiac conduction defects
• Aβ2M/ Amyloidosis: associated with ESRD. on hemodialysis
Carpal tunnel syndrome, joint effusions, cystic bone lesions
Decreases with stopping dialysis
Category:
Pathology
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now