Introduction: Paraganglioma or chemodectoma of the carotid corpuscle or carotid glomus is a relatively rare neoplasm of slow progression, late diagnosis and uncertain prognosis. This tumor originates from the chemoreceptors of the carotid bifurcation and clinically presents as a laterocervical mass. It represents the majority of paragangliomas of the head and neck (60-70%). Observation: We report the observation of a 56-year-old female patient who consulted for a right laterocervical swelling without any other associated clinical signs. A complete radiological workup (Angioscanner/Angiography) will confirm the vascular nature of the lesion, characterize the size of the mass, its nature, its mapping, and its relationship to adjacent organs. Surgical excision had confirmed the diagnosis on histopathological examination. From this observation, we review the clinical, radiological and histopathological features of this tumor, as well as its uncertain evolutionary mode and the therapeutic modalities. Conclusion: Lateral cervical paragangliomas remain rare and poorly known affections which require an early diagnosis and a multidisciplinary management: ENT surgeon, vascular surgeon, oncologist and radiotherapist according to the evolutive forms.