PathMD Quizes, Head & Neck Odontogenic Lesions – 02 October 29, 2017 peferguson Author: Philip Ferguson, M.D. Make sure to subscribe to PathMD to stay up to date with new content and features!! 1. A 30 y/o patient is found to have a solid jaw lesion. Surgical excision is performed, and representative images are shown for review. Based on the findings, which of the following is the best diagnosis? Odontogenic Part 2, Case #5FibrosarcomaAmeloblastic Carcinoma AmeloblastomaMalignant AmeloblastomaAmeloblastic Fibroma 2. The periodontal ligament anchors the tooth to the bone socket of the jaw and maxilla. Which of the following embryological elements is responsible for the formation of periodontal ligament?OdontoblastsMesenchymal cells outside the tooth Stellate reticulumAmeloblastsNone of the answers are correct 3. This lesion is characterized by a poorly differentiated conglomeration of dentin, cementum, and enamel. There are usually found in the first two decades of life. The best diagnosis is:Compound odontoma Fibrous dysplasia Ossifying fibroma Ameloblastic odontoma Complex odontoma 4. This cystic lesion is characterized by a stratified squamous epithelium (at least partially), a well defined basal layer of cuboidal to columnar cells (may resemble ameloblasts), and ghost cells (similar to a pilomatricoma). The best answer is:Calcifying odontogenic cyst Periapical cyst Glandular odontogenic cyst Dentigerous cyst Odontogenic keratocyst 5. Which of the following lesions is known as a Pindborg tumor?AmeloblastomaSquamous odontogenic tumor Clear cell odontogenic carcinoma Calcifying (epithelial) odontogenic tumor Adenomatoid odontogenic tumor 6. A 28 y/o female presents with a cystic jaw lesion. The cyst is curetted and representative images are shown. Based on the findings, which of the following is the best diagnosis? Odontogenic Part 2, Case #2 Odontogenic Part 2, Case #2 Odontogenic Part 2, Case #2Radicular Cyst Gorlin Cyst Glandular Odontogenic CystOdontogenic Keratocyst Periapical Cyst 7. A 30 y/o patient is found to have a solid jaw lesion. Surgical excision is performed, and representative images are shown for review. Based on the findings, which of the following is the best diagnosis? Odontogenic Part 2, Case #3 Odontogenic Part 2, Case #3AmeloblastomaAmeloblastic Carcinoma Malignant Ameloblastoma Ameloblastic Fibroma Fibrosarcoma 8. Which of the following lesions is associated with McCune Albright Syndrome:Fibrous dysplasia Ossifying fibroma Ameloblastic fibroma Odontogenic fibroma Cementifying fibroma 9. Which of the following embryologic elements is responsible for the formation of the enamel on the surface of the tooth?Odontoblasts None of the answersStellate reticulum Mesenchymal cells outside the tooth Ameloblasts 10. Gorlin syndrome (nevoid basal cell nevus syndrome) is associated with which of the following:Paradental cysts Multiple calcifying odontogenic cysts Glandular odontogenic cystsUnicystic ameloblastomas Multiple odontogenic keratocysts 11. A 30 y/o patient is found to have a solid jaw lesion. Surgical excision is performed, and representative images are shown for review. Based on the findings, which of the following is the best diagnosis? Odontogenic Part 2, Case #6 Odontogenic Part 2, Case #6 Odontogenic Part 2, Case #6Clear Cell Odontogenic Carcinoma AdenoameloblastomaAdenomatoid Odontogenic TumorCalcifying Odontogenic Tumor (Pinborg tumor)Renal Cell Carcinoma 12. A 31 /o male had a destructive jaw lesion which was surgically removed. Representative images from the case are shown. Based on the findings, which of the following is the best diagnosis? Odontogenic Part 2, Case #1 Odontogenic Part 2, Case #1 Odontogenic Part 2, Case #1Squamous cell carcinoma AdenocarcinomaMalignant AmeloblastomaAmeloblastic CarcinomaAmeloblastoma 13. This lesion usually occurs in children or young adults, is often associated with trauma, and may be secondary to slow, minute, recurrent hemorrhages. The most likely diagnosis is:Fibrous dysplasia Ameloblastic fibroma Giant cell granuloma Periapical cyst Juvenile ossifying fibroma 14. A 30 y/o patient is found to have a solid jaw lesion. Surgical excision is performed, and representative images are shown for review. Based on the findings, which of the following is the best diagnosis? Odontogenic Part 2, Case #4 Odontogenic Part 2, Case #4 Odontogenic Part 2, Case #4 Odontogenic Part 2, Case #4FibrosarcomaMalignant AmeloblastomaAmeloblastic CarcinomaAmeloblastomaAmeloblastic Fibroma 15. A unicystic ameloblastoma is characterized by all of the following EXCEPT:Infiltrating ameloblastic epithelial islands into the surrounding fibrous wall Vacuolization of the cytoplasm of the basal cells Palisaded basal cells with polarization of the nuclei Areas resembling stellate reticulum Single cyst lining Loading...