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Infundibular Cyst

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Dermatopathology

Part of the book series: Encyclopedia of Pathology ((EP))

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Synonyms

Epidermal cyst

Definition

Infundibular cysts are slowly growing, round, dermal, or subcutaneous tumors that can reach up to 1–5 cm. Giant and multilocular forms are also seen. They are usually located in the mid or lower dermis. Most of them develop on hair-bearing areas spontaneously, and these are related to the follicular infundibulum. Epidermal cysts developing in nonfollicular regions like palms and soles can be explained by traumatic implantation of epidermis into the dermis or subcutis. Congenital cysts of the midline scalp are also caused by implantation. Cysts can develop on chronic dermabrasion areas or healed herpes zoster sites. They are usually one or a few in a patient, but there can be numerous cysts in Gardner’s syndrome. Cysts can be infected and rupture. Anaerobes are predominant organisms in the cysts of genital and perianal regions.

Clinical Features

  • Incidence

    Infundibular cysts of the head neck comprise about 50 % of all cysts seen in this location among...

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References and Further Reading

  • Al-Khateeb, T. H., Al-Masri, N. M., & Al-Zoubi, F. (2009). Cutaneous cysts of the head and neck. Journal of Oral and Maxillofacial Surgery, 67(1), 52–57.

    Article  PubMed  Google Scholar 

  • Chiu, M. Y., & Ho, S. T. (2007). Squamous cell carcinoma arising from an epidermal cyst. Hong Kong Medical Journal, 13(6), 482–484.

    CAS  PubMed  Google Scholar 

  • Cooper, P. H., & Fechner, R. E. (1983). Pilomatricoma-like changes in the epidermal cysts of Gardner’s syndrome. Journal of the American Academy of Dermatology, 8(5), 639–644.

    Article  CAS  PubMed  Google Scholar 

  • Pozo, J., Castiñeiras, I., & Fernández-Jorge, B. (2010). Variants of milia successfully treated with CO(2) laser vaporization. Journal of Cosmetic and Laser Therapy, 12(4), 191–194.

    Article  PubMed  Google Scholar 

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Author information

Authors and Affiliations

  1. Department of Pathology, Hacettepe University Faculty of Medicine, 06100, Ankara, Turkey

    Özay Gököz

Authors
  1. Özay Gököz
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Corresponding author

Correspondence to Özay Gököz .

Editor information

Editors and Affiliations

  1. Division of Pathological Anatomy, Department of Surgery and Translational Medicine, University of Florence, School of Human Health Sciences, Florence, Italy

    Daniela Massi

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© 2016 Springer International Publishing Switzerland

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Gököz, Ö. (2016). Infundibular Cyst. In: Massi, D. (eds) Dermatopathology. Encyclopedia of Pathology. Springer, Cham. https://doi.org/10.1007/978-3-319-30006-1_431

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  • DOI: https://doi.org/10.1007/978-3-319-30006-1_431

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-30005-4

  • Online ISBN: 978-3-319-30006-1

  • eBook Packages: MedicineReference Module Medicine

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