Cock's peculiar tumour

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Cock's peculiar tumour
Specialty Oncology

Cock's peculiar tumour is a sebaceous cyst linked growth that can resemble a squamous cell carcinoma. [1] The name is given after a 19th-century English surgeon Edward Cock. [2] The proliferating cyst is usually solitary, but it often arises from a simple trichilemmal cysts in the hair follicle epithelium and these are multiple in 70% of cases. They are most commonly found on the scalp where the proliferating trichilemmal cyst will grow to a large size and ulcerate. Chronic inflammation can cause the cyst to take the form of a granuloma. This granuloma mimics a squamous-cell carcinoma (both clinically and histologically) and these ulcerating solitary cysts are called Cock's peculiar tumour. [3]

The most common sites are the ones where one can find hairs. These are, scalp and scrotum.

References

  1. ↑ Ramachandran, Manoj; Adam Poole (2003). Clinical cases and OSCEs in surgery. Elsevier Health Sciences. p. 9. ISBN   978-0-443-07044-0 . Retrieved May 24, 2009.
  2. ↑ Kumar, S. Sujith; Selvakumar, Muthiah; Thirunavukuarasu, R. (2012). "Cock's peculiar tumour". Indian Journal of Surgery. 75 (4): 325–326. doi:10.1007/s12262-012-0464-1. PMC   3726821 . PMID   24426466.
  3. ↑ Firkin, Barry G.; Whitworth, Judith A. (1996). Dictionary of Medical Eponyms (2nd ed.). London: Parthenon. pp. 70–71. ISBN   978-1-85-070477-5.
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