Menu Icon Search
Close Search

Quiz of the Week: Painful urination, a swollen knee, and eye pain—what’s the cause?

Created January 12, 2018 by Figure 1

A 31-year-old female presents to the emergency department with a two-day history of pain on urination and discomfort in her left knee and heel. She also complains of right eye pain, which is exacerbated by reading and bright lights. She recently recovered from a gastrointestinal illness two weeks earlier, but is otherwise healthy. Examination reveals a swollen left knee that is warm to the touch, and tenderness at the insertion point of the left Achilles tendon. Her right eye is red, and she has direct and consensual photophobia. Cells and flare are noted in the right anterior chamber on slit lamp examination. Based on this patient’s probable diagnosis, which of the following cutaneous manifestations is most likely?

A. Hyperkeratotic lesions
B. Evanescent erythemia
C. Bulls-eye rash
D. Purpuric papules

Find the answer, discuss this case, and more on Figure 1.

Explore cases, quiz yourself, and solve medical mysteries along with thousands of other medical professionals around the world on Figure 1, the free app where doctors expand their clinical knowledge.

// Share //

// Recent Articles //

  • A Beginner’s Guide to Financing Your Medical Education

  • Posted February 27, 2018 by Matt Sutton, SDN Contributing Writer
  • You got into medical school! Now how do you pay for it? You already sold a kidney and your grandma disinherited you after your last arrest. What options are left? In this guide, I’ll provide a rundown of some basic options for funding medical school. This subject is very complex and my guide won’t be...VIEW >
  • Looking at Other Specialties

  • Posted February 26, 2018 by Brent Schnipke, SDN Staff Writer
  • This column has been focused on providing clinical snapshots while exploring the factors that affect specialty choice for medical students. Some of these factors are universal, but so much is largely person-dependent—i.e., whatever is most important to the individual will be what ultimately makes the decision for him or her. Related...VIEW >
  • Do You Recognize This Blistering Pruritic Rash?  

  • Posted February 23, 2018 by Figure 1
  • A 4-year-old boy with known G6PD deficiency is brought to the pediatrician by his mother with a blistering pruritic rash. On examination, numerous tense vesicles and bullae are seen on his neck, lower abdomen, and extremities. Ulcerative lesions on his buccal mucosa are also noted. Direct immunofluorescence of a skin biopsy later reveals linear deposits...VIEW >
  • Recess Rehash: Bropocalypse 2017

  • Posted February 23, 2018 by The Short Coat Podcast
  • [Dave had the flu on recording day, so we’re posting this awesome episode from the recent past.  Enjoy!] Dave found himself hosting with another group of women, so what better time to talk about #MeToo and the powerful people being taken down by their sexual harassment and abuse of their less-powerful victims? Erin Pazaski, Hillary...VIEW >
grey's anatomy
  • Q&A with Dr. Priya A. Rajdev, Grey’s Anatomy Communications Fellow

  • Posted February 22, 2018 by The Student Doctor Network
  • When did you first decide to become a physician? Why? I was a little late to the game, honestly—I only made up my mind a year after I had graduated college, and, if I’m being perfectly honest, I went medicine on the gut feeling that I’d enjoy it. I always was kind of a science nerd, but...VIEW >

// Forums //