To the Editor.
—In a previous issue of the Archives, Treece et al1 reported the clinical application of tetracycline hydrochloride for sclerosing of recurrent thyroid cysts with uniformly successful results. However, in the January issue of the Archives, Ryan and Dwarakanathan,2 in their letter, and Treece,3 in his reply, described the untoward effects of this therapy, which were extreme pain occurring almost immediately in the area of injection and recurrent nerve palsy. Both Ryan and Dwarakanathan2 and Treece3 stated that these adverse effects were attributed to the extravasation of tetracycline into the surrounding tissue. We would like to describe an alternate procedure for sclerosing thyroid cysts using a polytef (Teflon) intravenous cannula placement unit to prevent the extravasation of the drug.
Report of a Case.
—A 75-year-old woman was found to have a 2.5×3.5cm nodule in the right lobe of the