Anderson C W, Stevens M H, Moatamed F
Otolaryngol Head Neck Surg. 1981 Jul-Aug;89(4):594-8. doi: 10.1177/019459988108900416.
A 28-year-old white man with a neck mass is described. A diagnosis of amelanotic melanoma was made by L-dopa reaction and electron microscopy. This tumor could represent a metastasis from an unknown primary or a primary that had undergone spontaneous regression. It could also be a rare primary tumor of the cervical sympathetic chain. Electron microscopy and the L-dopa reaction are emphasized as important adjuncts in the diagnoses of amelanotic melanoma.