Background: CD4+ T-lymphocytopenia immunodeficiency without human immunodeficiency virus (HIV) infection has been reported recently. The association between immunodeficiency and anogenital neoplasia secondary to human papillomavirus infections is well documented.
Case: A woman with recurrent vulvar intraepithelial neoplasia (VIN) had idiopathic CD4+ T-lymphocytopenia without HIV infection.
Conclusion: Human papillomavirus-related VIN may be associated with idiopathic CD4+ T-lymphocytopenia.