Benign acute childhood myositis

Question 1

Clinical presentation of BACM

Answer 1

Bilateral leg pain confined to gastrocnemius and soleus muscles - sudden inability to weight bear and/or walk resulting in tiptoeing or stiff- legged gait

Question 2

Cause of BACM

Answer 2

Viral illnesses - influenza A and B are the most often implicated

Question 3

Complication of BACM

Answer 3

Rhabdomyolysis with ARF

Question 4

Ddx for BACM

Answer 4

GB syndrome, transient synovitis, osteomyelitis/septic arthritis, DVT, juvenile idiopathic arthritis