Proliferating trichilemmal tumors: CT and MR imaging findings in two cases, one with malignant transformation.

@article{Kim2001ProliferatingTT,
  title={Proliferating trichilemmal tumors: CT and MR imaging findings in two cases, one with malignant transformation.},
  author={Hyoungsu Kim and Tae Sik Kim and Kyung Hee Lee and Young Mo Kim and Chang Hae Suh},
  journal={AJNR. American journal of neuroradiology},
  year={2001},
  volume={22 1},
  pages={180-3}
}
We report the imaging findings in two patients with proliferating trichilemmal tumors. In the first patient, the tumor arose on the lower lip, a very unusual location for this type of tumor, and showed malignant transformation with metastasis to a regional lymph node. It was seen as a poorly marginated soft-tissue mass with isointense signal on T1-weighted MR images and hyperintense signal on T2-weighted images. Large areas of high signal intensity caused by necrosis were also found within the… CONTINUE READING
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