A nodule is morphologically similar to a papule, but is greater than 1 cm in diameter, and most frequently centered in the dermis or subcutaneous fat.[1][nb 1] On examination, however, depth of involvement and/or substantive palpability, rather than frank diameter, differentiate a nodule from a papule.[2]
[edit] See also
- ^ With regard to the quote "...but are greater than 1 cm in diameter," depending on which text is referenced, different authors state different diameters for defining a nodule. Therefore, for this article, the 1cm cutoff is used which is discussed in Andrews' Diseases of the Skin: Clinical Dermatology (see references), a work considered by some dermatologists[who?] as an authority on this subject matter.
[edit] References
- ^ James, William; Berger, Timothy; Elston, Dirk (2005) Andrews' Diseases of the Skin: Clinical Dermatology (10th ed.). Saunders. Page 16. ISBN 0721629210.
- ^ Freedberg, et al. (2003). Fitzpatrick's Dermatology in General Medicine. (6th ed.). McGraw-Hill Professional. Page 15. ISBN 0071380760.