Table 2.
Reports of verrucous cysts
| Reference | Age/Sex | Site | Histology | HPV Type | Detection Method | Additional Notes |
|---|---|---|---|---|---|---|
| Ashida M et al28 | 50/M | Extremities | Verrucae, some with cystic changes | 3, 27, 60 | IHC, Southern blot | |
| Egawa K et al11 | 2–84 | Palmoplantar surface | Epidermoid cysts | 60 | IHC, ISH | 47/119 positive |
| Egawa K et al12 | 23/M | Right sole | Epidermoid cyst | 57 | PCR, ISH | |
| Egawa K et al5 | 8–61 | Plantar surface | Epidermoid cysts | n.d. | IHC, EM | 11/14 positive |
| Elston DM et al7 | - | Scalp | Epidermoid cyst | n.d. | IHC | |
| Honda A et al29 | 50/M | Hand, arm, leg | Plantar cyst | 60 | IHC, ISH, Southern blot | |
| Kashima M et al14 | 21/F | Plantar surfaces | Epidermoid cyst | 57 | ISH | |
| Kato N30 | - | Plantar surface | Epidermoid cyst | 60 | IHC | 2 cases |
| Kawasa M et al10 | - | Plantar surfaces | Epidermoid cysts | 60 | ISH | 6/10 cases positive |
| Kawase et al15 | 31/M | Scrotum | Epidermoid cyst | 6, 11 | IHC, ISH | |
| Kim H et al13 | 28/M | Right flank | Epidermoid cyst | 59 | IHC, PCR | |
| Kitasato H et al31 | - | Plantar surface | Epidermoid cysts | 57 | PCR, Southern blot | 3/18 cases positive |
| Lee S et al2 | - | Palmoplanatar and non-palmoplantar | Epidermoid cysts | 60 | PCR with sequencing | 9/63 cases positive |
| Meyer LM et al1 | 29–59 | Neck, eyebrow, forearm, upper back | Epidermoid cysts | n.d. | PCR | 5 cases |
| Misago4 | 52/F | Right thigh | Pilar cyst | n.d. | IHC | |
| Park HS et al32 | - | Palmoplantar surfaces | Epidermoid cysts | 60 | PCR, IHC | 4/13 cases positive |
| Pusiol T et al16 | 86/F | Perianal | Invasive squamous cell carcinoma arising from a verrucous cyst | 16 | IHC, ISH, PCR | |
| Ramagosa R33 | 75/M | Chest | Epidermoid cyst | 6, 8 | PCR | |
| Rios-Buceta LM et al6 | 53/F | Right plantar foot | Epidermoid cyst | n.d. | IHC | |
| Sato Y et al8 | 16/F | Plantar surface | Epidermoid cyst | n.d. | IHC | |
| Soyer HP et al18 | 37–82 | Face, extremities | Epidermoid cysts | n.d. | PCR | 5 cases |
| Terada T34 | 41/M | Neck | Epidermoid cyst with features of seborrheic keratosis | n.d. | IHC | SK like area was positive for HPV |
| This study | 19–66 | Various | Pilar (8) and Pilar-epidermoid hybrid (2) cysts | 24 | PCR with sequencing, ISH, IHC | 2/10 positive by PCR 3/10 positive by IHC |
Abbreviations: EM, electron microscopy; HPV, human papillomavirus; IHC, immunohistochemistry; ISH, in-situ hybridization; PCR, polymerase chain reaction; SK, seborrheic keratosis