Hickman nodule: a mimic of metastatic disease.
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A characteristic small subcutaneous soft-tissue mass can be seen on the computed tomographic scans of patients after removal of Hickman catheters. The mass is indistinguishable from subcutaneous metastatic deposits seen with a variety of malignant tumors. This potentially confusing finding can be differentiated from true metastatic disease by the characteristic location of the subcutaneous nodule in the second or third anterior intercostal space, along the midclavicular line, and by the absence of other subcutaneous masses.
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