Multiple bilateral trigger fingers in a child with neurofibromatosis type I following an acute viral infection: A case report.

introductionTriggering of the fingers in children is an uncommon entity. A review of the literature on the topic did not reveal any reports of multiple triggering in patients with neurofibromatosis. CASE REPORT: Our patient is a known case of neurofibromatosis type I (NF 1). At the age of 4 years, the child required chemotherapy to treat symptomatic bilateral optic glioma. Chemotherapy was complicated by severe viral upper respiratory tract infection with concurrent multi-joint synovitis and mild triggering of the fingers. A second course of chemotherapy was required 2 years later. This was also complicated by a viral infection, joint synovitis, and worsening of the triggering. Surgical release of the A1 and part of the A2 pulleys was curative. DISCUSSION: Two factors contributed to the development of multiple triggering in our pediatric patient. The NF 1 itself predisposes to fibrosis. The second factor is the synovitis that accompanied the acute viral infection.

conclusionWe report on a case of multiple bilateral trigger fingers in a child with NF 1 following an acute viral infection and discuss the pathogenesis.