Related Experiment Video
Updated: Apr 11, 2026

Objectification of Tongue Diagnosis in Traditional Medicine, Data Analysis, and Study Application
Published on: April 14, 2023
Accessory tongue: Classification and report of a case
M Hiradfar1, M Bakhshaee1, R Shojaeian1
1Mashhad University of Medical Sciences, Iran.
Background:
Accessory tongue (AT) is a rare congenital anomaly. Due to rarity of AT, various terminologies are applied, including accessory tongue, bifid tongue, double tongue, cleft tongue, and supernumerary tongue. It seems that the anomaly has geographic distribution and most reported cases are from India and Middle East. No comprehensive classification has been introduced yet. So, we present a classification for AT according to review of all papers and documents that we found, and report a 2-month-old male infant with this anomaly.
Related Concept Videos
Assessment of the Mouth
Mouth Inspection
The inspection begins with visually examining the mouth for symmetry, color, and size.
Tongue
Anatomical Position in the Oral Cavity
The tongue is located within the oral cavity, also known as the mouth. It is attached to the floor of the mouth by a fold of mucous membrane called the...
Assessment of Airway, Skin Color, and Use of Accessory Muscles
Introduction
The initial evaluation of a patient's respiratory system...
The Tongue and Taste Buds
Cranial Nerves: Types Part II
Facial Nerve (Cranial Nerve VII)
Cranial nerve VII, or the facial nerve,...
Accessory Organs

