Atypical spindle cell lesions of the skin

Atypical spindle cell lesions of the skin are seen with some frequency.

The differential diagnosis is SLAM:

• Spindle cell squamous cell carcinoma.
• Leiomyosarcoma.
• Atypical fibroxanthoma.
• Malignant melanoma.

A longer differential diagnosis is SLAM DUNK:

• Spindle cell squamous cell carcinoma.
• Leiomyosarcoma.
• Angiosarcoma.
• Malignant melanoma.
• Dermatofibrosarcoma protuberans (DFSP).
• Undifferentiated pleomorphic sarcoma (AFX).
• Nodular fasciitis.
• Kaposi sarcoma.

See also

• Dermatopathology.
• Spindle cell lesions.