Relapsing focal myositis: a case report.

[focal myositis]

We present a 9 year old boy with a focal myositis presenting as a pseudotumor on the right calf . Other smaller masses were present in the thigh and pretibial area on the same leg . The principal lesion recurred after two surgical excisions . Corticosteroid treatment was unsuccessful . However , methotrexate therapy resulted in a progressive regression of the lesions .