Coexisting tattoo pigment and metastatic melanoma in the same sentinel lymph node.
BACKGROUND
The principle of sentinel lymph node states that metastatic melanoma spreads in a predictable sequential fashion from the primary site to the regional lymph node basin.


CONCLUSIONS
Reports show that melanoma and tattoo pigment can be in the same regional lymph node basin on gross evaluation. We present two cases of melanoma arising within the setting of a tattoo where the sentinel lymph node contained both pigmented histiocytes and metastatic melanoma on gross inspection and histopathology.
Jaigirdar
Adnan A
AA
Departments of Surgery and Pathology, University of California, San Francisco, UCSF Helen Diller Family Comprehensive Cancer Center, UCSF Medical Center at Mount Zion, San Francisco, CA 94115, USA.
Yeh
Michael W
MW
Sharifi
Emile
E
Browne
L Walden
LW
Leong
Stanley P L
SP
D001365:Axilla; D004396:Coloring Agents; D006801:Humans; D008198:Lymph Nodes / Q000473:pathology* / Q000601:surgery; D008297:Male; D008545:Melanoma / Q000556:secondary*; D008875:Middle Aged; D021701:Sentinel Lymph Node Biopsy; D012878:Skin Neoplasms / Q000473:pathology*; D013653:Tattooing
D004396:Coloring Agents