A presumably benign tumor and a proved malignant tumor of the carotid body.

This publication has 4 references indexed in Scilit:

• Carotid body tumors; report of removal of tumor thought to be largest recorded; carotid removal, hemiplegia, recovery.
  1952
• SURGICAL TREATMENT OF CAROTID BODY TUMORS
  Annals of Surgery, 1951
• TUMORS OF THE CAROTID BODY
  1948
• On the Existence of Abdominal Vagal Paraganglia in the Adult Mouse.
  1936