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 Ameloblastic Fibroma AmeloblastomaMalignant Ameloblastoma 2. A unicystic ameloblastoma is characterized by all of the following EXCEPT:Single cyst lining Palisaded basal cells with polarization of the nuclei Vacuolization of the cytoplasm of the basal cells Areas resembling stellate reticulum Infiltrating ameloblastic epithelial islands into the surrounding fibrous wall 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:Ossifying fibroma Compound odontoma Ameloblastic odontoma Complex odontoma Fibrous dysplasia 4. Which of the following embryologic elements is responsible for the formation of the enamel on the surface of the tooth?AmeloblastsMesenchymal cells outside the tooth Odontoblasts Stellate reticulum None of the answers 5. 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:Juvenile ossifying fibromaGiant cell granuloma Ameloblastic fibroma Fibrous dysplasia Periapical cyst 6. 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?Mesenchymal cells outside the tooth None of the answers are correctAmeloblastsStellate reticulumOdontoblasts 7. 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 #1Malignant AmeloblastomaAdenocarcinomaAmeloblastic CarcinomaAmeloblastomaSquamous cell carcinoma 8. 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 #6Calcifying Odontogenic Tumor (Pinborg tumor)Renal Cell Carcinoma Clear Cell Odontogenic Carcinoma AdenoameloblastomaAdenomatoid Odontogenic Tumor 9. 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 #2Odontogenic Keratocyst Periapical Cyst Glandular Odontogenic CystGorlin Cyst Radicular Cyst 10. 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 #4Ameloblastic CarcinomaFibrosarcomaAmeloblastic Fibroma AmeloblastomaMalignant Ameloblastoma 11. Which of the following lesions is associated with McCune Albright Syndrome:Cementifying fibroma Fibrous dysplasia Odontogenic fibroma Ameloblastic fibroma Ossifying fibroma 12. Gorlin syndrome (nevoid basal cell nevus syndrome) is associated with which of the following:Glandular odontogenic cystsMultiple odontogenic keratocysts Multiple calcifying odontogenic cysts Unicystic ameloblastomas Paradental cysts 13. 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:Odontogenic keratocyst Periapical cyst Dentigerous cyst Glandular odontogenic cyst Calcifying odontogenic cyst 14. Which of the following lesions is known as a Pindborg tumor?AmeloblastomaSquamous odontogenic tumor Calcifying (epithelial) odontogenic tumor Clear cell odontogenic carcinoma Adenomatoid odontogenic tumor 15. 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 Ameloblastic Fibroma FibrosarcomaMalignant Ameloblastoma Loading...