Is keratosis pilaris in arms a side effect of Accutane?

I've been taking Accutane for the last eight months (40 mg per day) and will finish the treatment in 50 days, when I will reach a cumulative dose of 150mg/kg. The skin on my face is finally clear, but over the last weeks I have develop keratosis pilaris in my upper arms. I've never had such condition before, so I assume it is caused by the medication. My question is: could the condition improve or disappear after stopping the treatment? I'm a 39 years old male with fair skin. Thanks