MR imaging of a giant solitary trichoepithelioma of the skin

: Magnetic resonance images of a "giant solitary trichoepithelioma" (GST) are presented for the first time. Furthermore, to our knowledge this is the largest GST ever to be reported in the current literature. Magnetic resonance imaging gave information on the origin of the tumor and on the depth of invasion. The signal intensity is non-specific and does not allow histological classification. Preoperatively, the MR examination depicts the extent of the tumor and thus helps in the surgical management that follows.