To the Editor.—
Although the communication by Dr. Preger and his colleagues in the Archives (102:15, 1970) was accepted for publication when our more recent findings on the enteropathy associated with psoriasis1-3 were not available, it does contain a number of misinterpretations of the information which was available at that time.4-9 We should be grateful for a little space in your columns to put the record right. First then, the following are features of dermatogenic enteropathy:
At a time when the rash is present, there is steatorrhea, which we define as a fecal fat excretion of more than 5 gm/day. We have found steatorrhea with a fat excretion of up to 24 gm/day in dermatogenic enteropathy. Clearing of the rash by topical treatment of the skin alone results in rapid improvement in the steatorrhea. Consequently, this is not found in between attacks but may return in
Marks J, Shuster S. PSORIATIC ENTEROPATHY. Arch Dermatol. 1971;103(6):676–677. doi:10.1001/archderm.1971.04000180102014
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