Download citation file:
Psoriasis affects 2% to 3% of American adults. A study of nearly 1700 adults with a dermatologist-confirmed diagnosis of psoriasis found the overall annual sex- and age-adjusted incidence rate to be 62.3 of 100 000 people over a 30-year period (95% CI, 58.8 to 65.8). The annual incidence of psoriasis almost doubled between the 1970s and 2000 (50.8 to 100.5 per 100,000 people; P = 0.001), possibly reflecting increased exposure to risk factors or changes in diagnosing patterns in this population (1).
A. Extensive, well-demarcated erythematous plaques of the abdomen. Psoriasis plaques. B. Erythematous plaque of the elbow. C. Erythematous, scaling plaques of the abdomen.
Psoriasis nail changes.
A. Oil drop sign of the fingernail. B. Pitting and nail bed hyperkeratosis of the fingernails.
A. Swelling of the proximal interphalangeal joints of the second through fourth digits. B. Telescoping of the fifth digit due to severe bone lysis.
Please read the other comments before posting. Contributors must reveal any conflict
Comments are moderated and will appear on the site at the discretion of The American
College of Physicians editorial staff. Please be sure your email address is
updated in your account, otherwise the American College of Physicians will not be
able to contact you about your comment.
Anyone can submit a comment any time after publication, but only those submitted within 4 weeks of an article’s publication will be considered for print publication. One month after publication, editors review all posted comments and select some for publication in the Letters section of the print version of Annals. (Not peer reviewed)
Authors: No more than 5
Text: Word Limit 400 (excludes references), 5 references, no figures or tables
* = Required Field
Disclosure of Any Conflicts of Interest*
(applies to the past 5 years and foreseeable future) Indicate any potential conflicts
of interest of each author below, including specific financial interests and relationships
and affiliations relevant to the subject matter or materials discussed in the manuscript
(eg, employment/affiliation, grants or funding, consultancies, honoraria, speakers
bureau, stock ownership or options, expert testimony, royalties, donation of medical
equipment, or patents filed, received, or pending). If all authors have none, check
"No potential conflicts or relevant financial interests" in the box below. Please
also indicate any funding received in support of this work. The information will
be posted with your response.
Clinical Slide Set. Psoriasis
The In the Clinic® slide sets are owned and copyrighted by the American College
of Physicians (ACP). All text, graphics, trademarks, and other intellectual property
incorporated into the slide sets remain the sole and exclusive property of the ACP.
The slide sets may be used only by the person who downloads or purchases them and
only for the purpose of presenting them during not-for-profit educational activities.
Users may incorporate the entire slide set or selected individual slides into their
own teaching presentations but may not alter the content of the slides in any way
or remove the ACP copyright notice. Users may make print copies for use as hand-outs
for the audience the user is personally addressing but may not otherwise reproduce
or distribute the slides by any means or media, including but not limited to sending
them as e-mail attachments, posting them on Internet or Intranet sites, publishing
them in meeting proceedings, or making them available for sale or distribution in
any unauthorized form, without the express written permission of the ACP. Unauthorized
use of the In the Clinic slide sets will constitute copyright infringement.
to gain full access to the content and tools.
Learn more about subscription options