Figure 1From: Unusual cutaneous Langerhans cell sarcoma without extracutaneous involvementPhysical examination showed a 8.0 cm×6.0 cm well-defined ulcerated lesion in the skin of the extensor side of his right knee. A solitary nodular lesion, measuring 1.5 cm in diameter was also found near the large ulcerated lesion (black arrow).Back to article page