Sandbox:Sahar

{{Family tree | | | | | D01 | | | |D01= SDHD genetic testing}

{{Family tree | | | | | | | | F01 | | | |F01= SDHC and SDHB genetic testing}

Patient with neck mass suspected to carotid body tumor

History, Physical examination, and evaluation of cnotralateral side

Patients with age < 50 years Patients with multiple paraganglioma Patients with a positive family history

The rest of the patients

Presence of SDHD mutation

Absence of SDHD mutation

Presence of SDHC/B mutation

Absence of SDHC/B mutation