Unexpected Diagnosis of Concomitant Castleman's Disease Following Carotid Body Tumour Resection: A Case Report and Management Review.

Introduction: Castleman's disease is a rare lymphoproliferative disorder with distinct histopathological features. Although some non-specific imaging findings may suggest this pathology, the diagnosis remains challenging due to its rarity and often asymptomatic presentation.

Report: The case of a patient submitted to surgical resection of an assumed carotid body tumour, but whose histological examination revealed a paraganglioma and presence of Castleman's disease in the cervical lymph nodes is presented.

Discussion: The management and treatment options for this disease are reviewed in this report, which aims to raise awareness among surgeons involved in cervical tumour pathology about this rare pathology.