Thoracic and Renal Actinomycosis Requiring Complete Right Nephrectomy in a Costa Rican Female Child.

Actinomycosis is a relatively uncommon bacterial disease of childhood, especially when presenting as deep-seated infections. Only 10% of affected patients are younger than 18 years of age. In children, cervical actinomycosis is the most common form of clinical presentation, and among the abdominopelvic form, renal abscesses are rare.