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  • Title: Human papillomavirus-associated plantar epidermoid cysts: MR and US imaging appearance.
    Author: Sato Y, Nozaki T, Matsusako M, Eto H, Matsui M, Ohtake N, Suzuki K, Starkey J, Saida Y.
    Journal: Skeletal Radiol; 2014 Feb; 43(2):257-61. PubMed ID: 24057441.
    Abstract:
    Epidermoid cysts are epithelial cysts that present as slow-growing intradermal or subcutaneous lesions. While recent epidemiological studies have isolated human papillomavirus (HPV) from plantar epidermoid cysts, imaging findings in HPV-associated epidermoid cysts have not been previously reported. We describe imaging findings in two patients with HPV-associated plantar epidermoid cysts. Magnetic resonance (MR) imaging and ultrasonography (US) showed linear arrangement of several adjacent globular cysts. This appearance is hypothesized to result from HPV-associated eccrine duct metaplasia leading to cyst formation and later traumatic rupture leading to formation of multiple adjacent cystic components. It may be useful to suggest assessing the presence of HPV antigen in plantar lesions having these imaging findings.
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