A 45-year-old woman is sent to the emergency room after having a widespread tonic-clonic seizure. She has no past history of seizures, but she has just developed right arm weakness. Her family history is noteworthy since her mother died of skin cancer. Physical examination reveals a 13-mm skin lesion on her back, as illustrated in the photograph below. This lesion most likely originated from which of the following embryologic derivatives?

Question

A 45-year-old woman is sent to the emergency room after having a widespread tonic-clonic seizure. She has no past history of seizures, but she has just developed right arm weakness. Her family history is noteworthy since her mother died of skin cancer. Physical examination reveals a 13-mm skin lesion on her back, as illustrated in the photograph below.  This lesion most likely originated from which of the following embryologic derivatives?

Quizplus · Accepted Answer

Eductional Objective: Lung cancer, kidney cancer, and melanoma are the most prevalent brain metastatic tumors. Melanoma is a cancer of melanocytes, which develop embryologically from neural crest cells.

A 45-Year-Old Woman Is Sent to the Emergency Room After