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AN OCEAN SWIMMER went
to urgent care after coming into contact with something on the
ocean floor during a scuba diving expedition. The patient
developed an urticarial plaque on his face. His doctor was
concerned about the palpebral conjunctival injection he noted
during the exam.
Can you
diagnose the patient? Use the Differential
Builder in VisualDx to help you. HINT: Start with the “Adult
Skin – Marine Exposures” clinical scenario, then add other key
findings.
Look for
the answer on our Facebook
page on Tuesday, June 30.
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WHILE MANY
PATIENTS accept hair loss as a normal sign of aging, for
others it can be extremely distressing. Androgenetic alopecia, also
known as male or female patterned hair loss, is the most common type
of hair loss, affecting most men and a significant proportion of women
to some degree by the time they reach the age of 60.(1) The frequency
and severity increase with age. Androgenetic alopecia is nonscarring,
meaning that there is a population of cells that can grow and enlarge
the hair. Reversal may require ongoing topical and/or oral
medication.
Health care providers can help ease patient anxiety around hair loss
through education and by dispelling common hair loss misconceptions,
such as these:
- Only men experience hair loss. FALSE. Female pattern
alopecia usually presents after menopause as diffuse thinning of
the central portion of the scalp with sparing of the frontal
hairline. Like men, women may benefit from topical minoxidil
(Rogaine) to help grow hair. Normal hair grooming practices,
including washing, perming, and coloring, are not harmful
because androgenetic alopecia is not a primary hair shaft
disorder (ie, not associated with increased fragility).
- Balding is entirely inherited from the
maternal grandfather. FALSE. While male pattern
hair loss is mostly X-linked and based on the maternal
grandfather, research has also shown that a person with a
balding father has a significantly greater chance of
experiencing hair loss. Both genetic and environmental factors
may play a role, and many etiologies remain unknown.
- Male and female pattern hair loss cannot be
prevented. FALSE. Topical minoxidil
(Rogaine) and oral finasteride (Propecia) are the best
treatments in preventing and stopping hair loss.(2)
If male patients are willing, encourage them to use both. For
women, minoxidil alone is the current standard of treatment
(finasteride is not yet FDA approved for use in women, as its
potential efficacy is still being studied).
Hair loss may significantly impact
an individual’s self-image.(3) Fortunately, treatments are available
to help both men and women. Treatment should be continued for at
least 12 months before making a decision about efficacy, although
benefits may be seen sooner. If treatment is discontinued, the extent
of loss will rapidly progress to where it would have been without
treatment. Hair pieces and other methods of camouflage can be offered
as treatment alternatives and adjuncts. Treat all other underlying
causes of hair loss such as seborrheic dermatitis.
All females with pattern hair loss should have basic blood work to
rule out underlying thyroid disease or iron deficiency, both of which
can lead to telogen effluvium and may mimic pattern hair loss. In
female patients, look for signs or symptoms of hyperandrogenism
(female patients with a hyperandrogenic state will usually present
with a male pattern hair loss with bilateral temporal/frontal
recession). If a hyperandrogenic state is suspected, further
evaluation is warranted.
To see images of androgenetic alopecia, follow the links to VisualDx:
Alopecia, female pattern
Alopecia, male pattern
References:
1. Blume-Peytavi U, Blumeyer A, Tosti A, et al. S1 guideline for
diagnostic evaluation in androgenetic alopecia in men, women and
adolescents. Br J
Dermatol. 2011;164(1):5-15.
2. Rogers NE, Avram MR. Medical treatments for male and female
pattern hair loss. J
Am Acad Dermatol. 2008;59(4):547-566; quiz 567-548.
3. Reid EE, Haley AC, Borovicka JH, et al. Clinical
severity does not reliably predict quality of life in women with
alopecia areata, telogen effluvium, or androgenic alopecia. J Am Acad Dermatol. 2012;66(3):e97-102.
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VisualDx
was featured online earlier this month on CNN's Vital Signs with Dr.
Sanjay Gupta! Learn how VisualDx helps
providers make accurate diagnoses of unfamiliar diseases, identify
and diagnose travel-related infections, and speed diagnosis by
presenting diverse images of disease.
"People present in different
ways," says Dr. James Shoemaker, emergency physician at
Elkhart General Hospital, Indiana -- who uses the app every day for
more rapid diagnoses. "This has pictures of different skin
colors," he says. - CNN's
Vital Signs
With our mobile apps and EHR-integrated software we
strive to ensure that our 1,300 conditions and nearly 30,000 images
are at your fingertips where and when you need them.
Read more of the article in Vital Signs today!
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CHANGING THE CLINICAL SCENARIO
Customize your differential or search results in VisualDx by
changing the clinical scenario. This powerful tool allows you to
view different presentations of a diagnosis. For instance, you may
want to see an example of Herpes zoster in an immune suppressed
patient, child, or only on a particular body location.
On the
desktop. You can change the clinical scenario on
the desktop version of VisualDx in two places. In the top search
bar, there is a drop down menu with a list of all the clinical
scenarios available for each diagnosis. Alternatively, you can
choose from a quick list of commonly used clinical scenarios on the
left menu and click to expand a more extensive menu.
On the iPad.
The clinical scenario is located in the left menu. Simply scroll
down the menu and select a different scenario to see a new set of
images.
On the
iPhone. To choose a different clinical scenario,
select the clinical setting at the bottom of the diagnosis. A new
window will come up showing all of the clinical scenarios that are available
for the diagnosis. Choose a new scenario to see a new set of
images.
On an
Android phone. The clinical scenario is located in
the top menu bar. Click on the drop down menu and select a
different scenario to see a new selection of images for the diagnosis.
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