You can search for symptom,
diseases, and by organ system.

Each condition is having a
DDx list and some diseases
coupled with etiology list.

The problem is that it is
designed for medicine not
pediatrics so you get things
such as temporal arteritis and
dementia and malignancy as
a cause of failure to thrive! And you
don't find a ddx for crying.

The app is a simple listing of ddx and causes
of various symptoms and conditions
and there's no real differential
diagnosis analyzer
of multiple symptoms.

Lab abnormalities are included so you find the
causes of hypokalemia and elevated
Alkaline phosphatase for example.

Some lists could have been
better, for example we have three causes
of café aut lait spots, and cross linking
is not thorough.
Diagnosaurus DDx on iPhone
Last Reviewed on March 5, 2009

  • What a name! Diagnosaurus: a mixture of diagnosis (what the program is
    about) and thesaurus (implying an encyclopedic nature) and a dinosaur  
    (giving a sense of power) and the icon/logo is a dinosaur!
  • This is essentially an ebook that lists the differential diagnosis for a given
    single symptom.
  • Unlike the Palm and Windows Mobile version this iPhone app is not free but
    it's only for 99 cents!
  • The book is published by Mcgraw-Hill and made available for the PDA by
    Unbound Medicine.
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