label: CRTC1-TRIM11 Cutaneous Tumor
label_lc: crtc1-trim11 cutaneous tumor
description: A very rare malignant dermal tumor of uncertain differentiation that morphologically overlaps with clear cell sarcoma, exhibits partial melanocytic differentiation, and is characterized by the presence of CRTC1-TRIM11 gene fusion. It is composed of epithelioid to fusiform cells with pale cytoplasm and vesicular nuclei. It appears to behave less aggressively than melanoma and clear cell sarcoma, and only a minority of the published cases have shown regional or distant metastasis.