[MR imaging of a giant solitary trichoepithelioma of the skin]

Area of Science:

• Dermatology
• Radiology
• Oncology

Background:

• Trichoepitheliomas are rare benign tumors.
• Giant solitary trichoepithelioma (GST) is an exceptionally rare variant.
• Limited data exists on the imaging characteristics of GST.

Observation:

• Presents the first reported magnetic resonance (MR) images of a GST.
• This case represents the largest GST documented in medical literature.
• MR imaging provided insights into the tumor's origin and invasion depth.

Findings:

• The MR signal intensity of the GST was non-specific.
• Histological classification cannot be determined solely by MR signal intensity.
• Preoperative MR examination effectively delineated the tumor's extent.

Implications:

• MR imaging is valuable for surgical management planning of GST.
• Detailed imaging helps surgeons understand tumor boundaries and invasion.
• This case expands the understanding of rare cutaneous neoplasms.