E85.3

Clinical Causes: Prolonged kidney failure requiring chronic hemodialysis Continuous buildup of beta-2 microglobulin protein due to impaired kidney clearance Chronic inflammatory diseases, such as rheumatoid arthritis or chronic infections, that stimulate excessive amyloid protein production Genetic predispositions resulting in abnormal protein production Progressive decline in renal function leading to increased amyloid deposition in tissues

Key Symptoms: Joint pain and swelling, especially around large joints like hips and shoulders Carpal tunnel syndrome due to amyloid deposits in wrist tendons Muscle weakness and stiffness Skin changes, including thickening or easy bruising Nerve-related issues causing numbness or tingling Organ dysfunction symptoms, such as shortness of breath, irregular heartbeat, or digestive disturbances Swelling and edema in affected areas due to organ impairment

Diagnosis Path: Biopsy of affected tissues or organs to identify amyloid deposits using special stains like Congo red Imaging tests such as echocardiography or MRI to detect organ damage Laboratory tests measuring levels of amyloid-related proteins in blood and urine Assessment of kidney function and other organ performance metrics Electrophysiological studies for nerve involvement

Treatment Protocols: Optimizing dialysis protocols to better remove amyloidogenic proteins Use of medications to reduce inflammation and suppress amyloid protein production Supportive therapies for affected organs, such as medications for heart or joint health Physical therapy to maintain mobility and reduce joint stiffness In some cases, experimental therapies and clinical trials targeting amyloid deposits are considered