Whatâs the diagnosis? One of the things I do on almost a weekly basis is to answer a continuing education test question from the American Academy of Dermatology. Usually they provide a picture and ask me to say what it is, followed by a little educational write up about the correct diagnosis.
Sometimes, I get to see some really cool looking rashes and growths in the office. As a nerdy dermatologist, these are the things that make my day. Well, that and enjoying the daily conversations when I get to learn more about my patients and their lives. I digress⦠So, hereâs the first of new type of blog post.  Let me know what you think!
Whatâs the diagnosis? Ichthyosis
Icthyosis is technically a description and not a single diagnosis. It is a group of over 20 disorders that keeps expanding as we learn more about how these disorders are derived genetically. According to Wikipedia (the source of all medical knowledge and where I admittedly quick check my facts sometimes), the name is derived from the  ἰÏθÏÏ , meaning âfishâ for good reason as you can see in these pictures. Admittedly, this is one of the most impressive cases I have ever seen in person. Apart from true genetically derived ichthyosis, we sometimes will describe very, very dry skin as ichthyosiform scale.
What can we do to help the appearance of the skin for these patients? Depending on the severity of the disorder, treatment is usually aimed at chemically dissolving the dead skin that does not shed correctly. In most cases, we do not want to scrub, pick or buff the dead skin too much. At least daily bathing with a long soak in the bath is extremely helpful. We want to use a mild soap, and because the thickened skin often retains bacteria leading to an unpleasant odor, a mild antibacterial soap is also helpful. (See my prior post on my love for ). There are a number of topical creams both over the counter and prescription that contain ingredients that chemically degrade and dissolve the dead skin and help it shed more effectively. Active ingredients include lactic acid, salicylic acid and urea. Creams containing these active ingredients can vary greatly in concentration and thus their efficacy can vary.  Lately, I have been recommending the newer of products which contains urea (a safe chemical that circulates in our blood). Other over the counter options include (salicylic acid), (Lactic acid) and the (Urea + antioxidants) . For more severe cases, prescription strength products are of additional benefit.
Some forms of ichthyosis can be associated with medical problems, so it is important to determine genetically the exact type of ichthyosis for effective health monitoring.
Additional information can be found at the , an organization for supporting patients with ichthyosis.
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