Solitary jejuna metastasis from parotid gland malignant melanoma: a case report and literature review

Malignant melanoma of parotid gland is an extremely rare event, and the metastasis to jejuna presented with intussusception is especially unusual. In this case report, a solitary jejuna metastasis from a parotid gland malignant melanoma was discussed. The patient underwent a radical surgical excision. Biological immunotherapy was taken for four months after the surgery. After 7 months follow-up, he re-presented with a metastasis deposit of malignant melanoma in his jejuna. The patient lost connection from jejuna metastases 13 months after presentation. We also review reviewed a series of cases to conclude the characteristics and prognosis of primary malignant melanoma of parotid.