Carotid body tumor classification

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Sahar Memar Montazerin, M.D.[2] Maria Fernanda Villarreal, M.D. [3]

Overview

Carotid body tumor is classified into sporadic, familial and hyper-plastic form. According to Shamblin surgical classification, carotid body tumor divided into three subtypes which includes: class I that localized with minimal vascular attachment, class II that partially surrounds carotids and class III which encases carotids as well.

Classification

• Carotid body tumor is classified into 3 categories:

• Familial carotid body tumor
• Sporadic carotid body tumor
• Hyperplastic carotid body tumor

• Carotid body tumor is sub-classified into 2 categories:

• Single
• Bilateral

• Carotid body tumor may also be classified according to Shamblin surgical classification into 3 subtypes: I, II, and III.

• Class I: localized tumor, splaying the carotid bifurcation and with minimal vascular attachment
• Class II: partially surrounds carotid vessels
• Class III: encases carotids.

• The purpose of this classification is to make a estimate of the possible complications of surgical removal of the tumor.