Skin cysts

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Author: Mikael Häggström [note 1]

Microscopic evaluation

The main initial clue is the lining of the cyst, being either stratified squamous epithelium, non-stratified squamous epithelium, or absence of epithelium (pseudocysts):[1]

Stratified squamous epithelium

File:Relative incidence of cutaneous cysts.jpg
Relative incidence of cutaneous cysts.[2]
Location Main diagnoses
Face
  • Epidermoid cyst
  • Milium
  • Pigmented follicular cyst (men)
  • Dermoid cyst (along embryonic fusion planes such as lateral eyebrows in infants)
  • Verrucous cyst
Scalp
  • Epidermoid cyst
  • Trichilemmal cyst
  • Proliferating tricholemmal cyst
Trunk
  • Epidermoid cyst
  • Vellus hair cyst (chest)
  • Steatocystoma
  • Veruccous cyst
Pelvic, anogenital
  • Proliferating epidermoid (infundibular) cyst

Notes

  1. ↑ For a full list of contributors, see article history. Creators of images are attributed at the image description pages, seen by clicking on the images. See Patholines:Authorship for details.

Main page

References

  1. ↑ page 1917 in: Bolognia, Jean (2018) (in de). Dermatology . Philadelphia, Pa: Elsevier. ISBN 978-0-7020-6342-8. OCLC 1011508489. 
  2. ↑ Pakistan: Kamyab, Kambiz; Kianfar, Nika; Dasdar, Shayan; Salehpour, Zahra; Nasimi, Maryam (2020). "Cutaneous cysts: a clinicopathologic analysis of 2,438 cases ". International Journal of Dermatology. doi:10.1111/ijd.14808. ISSN 0011-9059. 

Image sources



Non-stratified squamous epithelium

Absence of epithelium (pseudocyst)

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