Case presentation Over a 12-month period, a 73-year-old female noted progressive growth and darkening of a 0.9 x 1.2 cm lesion on the dorsal aspect of her left hands . The encompassing pores and skin was mottled and sun damaged. Dermoscopy uncovered an asymmetrical, dark tan to dark lesion with an irregular scalloped border . There were rippled wide bands of pigment that were confluent in areas, but there was no well developed pigment network. Pale dots interrupted the pigmentary pattern. Skin biopsy demonstrated an epidermis with a thick horny coating and basal keratinocytes with pigment but no melanocytic proliferation ..Accuray is now working closely using its source chain network to level up developing to meet commercial demand for the MLC. The InCise MLC may be the world's first multileaf collimator to be accessible on a robotic platform, the CyberKnife M6 Program. The system was made to deliver extremely specific stereotactic body radiation therapy . Which consists of unique robotic range of motion and continuous image assistance, the operational program follows the target through the entire treatment process, providing individualized treatment with sub-millimeter precision. The CyberKnife M6 System can be used to treat tumors in the body anywhere, like the prostate, lung, brain, spine, liver, kidney and pancreas, and may offer desire to patients who have inoperable or surgically complex tumors, or who may prefer a effective clinically, nonsurgical option.