After reviewing this pictorial essay,
the reader will be able to:
Discuss thewide range of lesions that involve the pediatric mandible.
Describe theimaging features and common locations of specificlesions.
Discuss the differential diagnosis based on the above findings.
Identify the lesions that require tissue biopsy for a more definite diagnosis.
Mandibular lesions are infrequently encountered in children. The purpose of this poster is to familiarize the reader with a wide range of these lesions and highlight the characteristic imaging findings of these lesions. Gross and histological specimens will be illustrated where available.
A radiological approach to the differential diagnosis of these lesions will be discussed. The differential diagnosis is important to guide further diagnostic work up,
biopsy and subsequent treatment.
Odontogenic tumours are rare and benign in most cases.
thereare oftenno clear...
Imaging findings OR Procedure Details
I ODONTOGENIC LESIONS
Case 1: Maxillary Sinus Keratocystic Odontogenic Tumour
13-year old boy with pain and lump over the right maxillary region (Figure 1).
This lesion is a commoncyst of the mandible.Some cases occur in the maxillary sinus and may be mistaken for mucous retention cysts. Patients may present with a painful mass.Lesions may be single or multiple and when multiple are often associated with Gorlin's syndrome.
The lesion appears as a well-defined,unilocular,
well-corticatedradiolucent lesionthat have a tendency to grow in an antero-posterior...
1. Mandibular lesions in children may arise from odontogenic or non-
2. Many of these lesions have overlappingimaging findings.
3. The prevalence and location of these lesions may be helpful in narrowing the differential diagnosis.
World Health Organization classification of tumours: pathology and genetics of tumours of the head and neck,
2. Dunfee BL,
Radiologic and pathologic characteristics of benign and malignant lesions of the mandible.
3. Slootweg PJ.
Update on tooth formation mimicking odontogenic neoplasia.
Head Neck Pathol.
4. Meyer KA,
Imaging characteristics of benign,