Showing posts with label Musculoskeletal system. Show all posts
Showing posts with label Musculoskeletal system. Show all posts

Saturday, December 10, 2016

Myotonic dystrophy notes and mnemonic


Here are my notes + a mnemonic

Congenital myotonic dystrophy
- Autosomal Dominant
- CTG trinucleotide repeat
- Genetic anticipation seen

- Hypotonia "floppy infant"
- Hollowing of temporal bones
- Tenting of upper lip
- Respiratory muscle weakness
- Arthrogryposis
- Posterior subcapsular cataracts (Subcapsular spokes in stellate conformation) 

Juvenile myotonic dystrophy

- Facial and upper body weakness (Hatchet face due to temporalis, masseter, facial muscle atrophy; frontal baldness)
- Inability to relax muscle (Sustained grip)

- Cardiomyopathy
- Heart block
- Congestive heart failure

- Intellectual impairment
- Gonadal atrophy
- Posterior subcapsular cataracts

- Thenar, hypothenar muscle atrophy (Myotonia evident on percussion)
- Tongue depression
- Dementia

That's all!
Be kind.

Saturday, June 4, 2016

Superficial and deep veins in upper and lower extremity mnemonic


It's important to know the superficial and deep veins of the extremities.


Because management of thrombosis of a deep vein differs from thrombosis of a superficial vein.

Myasthenia gravis and muscles involved

Today, in the study group, someone asked about nerves not involved in MG.

Myasthenia gravis can present as a pupil-sparing third nerve palsy with ptosis.

Why is the pupil spared?