Related Experiment Video
Updated: Jun 28, 2026

Systematic Assessment of Mammalian Skull Specimens for Dental and Temporomandibular Joint Pathology
Published on: August 22, 2022
Myxoid calcified hamartoma and natal teeth: a case report
Michelle Agostini1, Jorge Esquiche León, Michele Gassen Kellermann
1Department of Oral Diagnosis, School of Dentistry, UNICAMP, Piracicaba, São Paulo, Brazil; School of Dentistry, UNIPLAC, Lages, Santa Catarina, Brazil. michelleagostini@uol.com.br
Abstract:
We report the case of a 4-month-old Caucasian male baby who presented an uncommon mass in the anterior mandibular ridge. The patient was born with two natal mandibular incisors, which exfoliated some weeks after birth, followed by a growth of nodular lesion in the same region. Based on the clinical and histopathological features, the diagnosis was of myxoid calcified hamartoma. Immunohistochemical and scanning electron microscopic analysis of the lesion were performed. Hamartomas in the mandibular ridges associated with natal teeth are rare, but they must be considered in the differential diagnosis of common lesions, such as congenital granular cell epulis.
Related Concept Videos
Tooth Anatomy
The Crown, Neck, and Root
The visible part of the tooth is referred to as the crown. It's covered by enamel, the hardest substance in the human body. The crown is uniquely shaped for each type of tooth, allowing for different functions such as cutting, tearing, or grinding food.
Teeth
In the bud stage, the tooth germ (an aggregation of cells) starts to form in the developing jawbone. During the cap stage, the tooth germ differentiates into enamel organ, dental papilla, and dental sac, which will later develop into the tooth's enamel, dentin and...

