1385 results
Hypothyroid Myopathy
Very common (up to 80% ) in patients with hypothyroidism
Pathophysiology:
 • T4 deficiency leads to
Hypothyroid Myopathy ... Symmetric, proximal myopathy ... Rhabdomyolysis (rare) #Hypothyroid ... #Myopathy #pathophysiology ... #signs #symptoms
Hypothyroidism – symptoms and signs.

Symptoms: 
Tiredness/malaise, 
Weight gain,
Anorexia,
Cold intolerance, 
Poor memory,
Change in appearance, 
Depression, 
Poor libido,
– symptoms and signs ... , Deafness Signs ... hypertrophy, Proximal myopathy ... reflexes, Anaemia #Hypothyroid ... #Features #Signs
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
Lack of UMN/LMN signs ... proximal weakness Myopathy ... mediated necrotizing myopathy ... Endocrinopathies: Hypothyroid ... • Metabolic myopathies
Myoedema on Physical Exam
Myoedema (or "mounding"): A sign of Hypothyroidism, refers to a small lump rising
"mounding"): A sign ... characteristic of hypothyroid ... myopathy, lasts
Myositis and Myopathies
#ESR #CK #Differential diagnosis of myopathy 
#Inflammatory #myopathies	#Dermatomyositis	
#muscle weakness
#Polymyositis	
#Inclusion body myositis
#Polymyalgia rheumatica	
#Fibromyalgia	
#Hypothyroid myopathy	
#Muscle stiffness
#Drug-induced
Myositis and Myopathies ... #Inflammatory #myopathies ... Fibromyalgia #Hypothyroid ... myopathy #Muscle ... Statin-induced myopathy
Thyroid Function Test Interpretation Table

TSH, Free T4, Free T3 and Associated Condition
#Diagnosis #Endocrinology #Hyperthyroid #Hypothyroid #Function
Endocrinology #Hyperthyroid ... #Hypothyroid #Function
Thyroid Disorders - Differential Diagnosis Algorithm
Hypothyroidism:
 • Hasimoto’s
 • Radioactive Iodine 
 • Hypopituitarism
 • Iodine
Diagnosis #Algorithm #Hypothyroid ... #Hyperthyroid
Idiopathic Inflammatory Myopathies - 
Dermatomyositis (DM), Immune-Mediated Necrotizing Myopathy (IMNM), Antisynthetase Syndrome (ASS), Inclusion Body Myositis
Idiopathic Inflammatory Myopathies ... Immune-Mediated Necrotizing Myopathy ... #Inflammatory #Myopathies ... #Idiopathic #Myopathy
Abnormal Serum TSH - Differential Diagnosis Algorithm
Increased TSH
 • Hypothyroidism
 • Sub-clinical Hypothyroidism
 • Recovery from
Diagnosis #Algorithm #Hypothyroid ... #Hyperthyroid #
Statin Induced Muscle Toxicity - Summary

Clinical Presentation:
 • Elevations of serum creatine kinase with proximal myalgia
• Inflammatory myopathy ... , hypothyroid-induced ... myopathy, Guillain-Barré ... Statin-induced myopathy ... - Necrotizing myopathy