1.
Viral Infection
Correct Answer
A. Primary Herpetic Gingivostomatitis
-ex) herpes labialis
Explanation
Primary Herpetic Gingivostomatitis, also known as herpes labialis, is the correct answer because it is a viral infection that causes inflammation and sores in the mouth and gums. This condition is typically caused by the herpes simplex virus type 1 (HSV-1) and is characterized by symptoms such as fever, sore throat, swollen lymph nodes, and painful blisters or ulcers in the mouth. Secondary Herpetic Gingivostomatitis is a recurrent form of the infection, while Malar Rash and Gothic Disease are unrelated conditions.
2.
Candidiasis
Correct Answer
B. Most common oral infection -aka- thrush or moniliasis
(many types possible)
Explanation
The correct answer is "Most common oral infection -aka- thrush or moniliasis (many types possible)." This is because candidiasis, also known as thrush or moniliasis, is the most common oral infection caused by the Candida fungus. It can manifest in various forms and can affect different parts of the body, including the mouth, throat, and genitals. Treatment for candidiasis may involve excision biopsy in severe cases, but it can also be managed with antifungal medications. Therefore, the statement "Most common oral infection -aka- thrush or moniliasis (many types possible)" accurately describes candidiasis.
3.
Contact mucositis and dermatitis
Correct Answer
D. Both a & b
Explanation
The correct answer is "Both a & b". Contact mucositis and dermatitis can result from direct contact with an allergen, which is a type IV reaction caused by poison ivy. These conditions can occur separately or together, hence both statements a and b are true.
4.
VIRAL INFECTION
Correct Answer
D. All of the above
Explanation
The correct answer is "all of the above" because the herpes simplex virus can cause both oral and genital infections. Type I is commonly associated with oral infections, such as cold sores, while type II is typically associated with genital infections. However, it is important to note that both types can cause infections in either location.
5.
Immunodeficiency
Correct Answer
A. A deficiency of the immune response resulting from hypoactivity or decreased numbers of lympHoid cells
Explanation
Immunodeficiency refers to a condition where the immune response is deficient or weakened. This can be caused by hypoactivity, which means the immune system is not functioning at its optimal level, or by a decrease in the number of lymphoid cells, which are responsible for immune responses. Both of these factors can contribute to a deficiency in the immune response, leading to a compromised ability to fight off infections and diseases.
6.
VIRAL INFECTION
Correct Answer
B. Herpangina
Explanation
Herpangina is a viral infection that causes small, painful blisters or ulcers on the back of the throat and roof of the mouth. It is commonly caused by the Coxsackie virus. Symptoms of herpangina include fever, sore throat, difficulty swallowing, and a rash. The infection is usually self-limiting and resolves within a week. Treatment involves managing symptoms with pain relievers and ensuring hydration. Candidiasis, also known as yeast infection, is a fungal infection. Kissings Disease is another name for infectious mononucleosis, which is caused by the Epstein-Barr virus. Koch's Disease refers to tuberculosis, which is caused by the bacterium Mycobacterium tuberculosis.
7.
Granuloma
Correct Answer
C. A tumor-like mass inflammatory tissue consisting of a central collection of macropHages, often with multi-nucleated giant cells, surrounded by lympHocytes
Explanation
Granuloma is a tumor-like mass of inflammatory tissue that typically contains a central collection of macrophages. These macrophages may or may not have multi-nucleated giant cells. Additionally, the granuloma is often surrounded by lymphocytes. Therefore, the correct answer is "a tumor-like mass inflammatory tissue consisting of a central collection of macrophages, often with multi-nucleated giant cells, surrounded by lymphocytes."
8.
Urticaria
Correct Answer
A. Associated with Hives
Explanation
The term "urticaria" refers to a skin condition commonly known as hives. Hives are characterized by raised, itchy, and red welts on the skin. Therefore, it is correct to say that urticaria is associated with hives. The other options, "associated with Hens" and "associated with Hashmen's Disease," are incorrect and do not have any medical relevance or connection to urticaria.
9.
VIRAL INFECTION
Correct Answer
B. Chikenpox
Explanation
Chickenpox is a viral infection caused by the varicella-zoster virus. It is characterized by a rash of itchy, fluid-filled blisters that eventually scab over. Chickenpox is highly contagious and spreads easily through direct contact with the rash or through respiratory droplets. It is a common childhood illness that usually resolves on its own within a week or two. Symptoms may include fever, headache, fatigue, and loss of appetite. Chickenpox can be prevented through vaccination, and treatment usually involves managing symptoms and preventing complications such as secondary bacterial infections.
10.
Antibody
Correct Answer
D. All of the above
Explanation
The correct answer is "all of the above" because an antibody is a protein molecule, specifically an immunoglobulin, which is produced by plasma cells and reacts with a specific antigen. Therefore, all three statements are true and provide a comprehensive explanation of what an antibody is and how it functions.
11.
What is choristoma?
Correct Answer
B. Normal tissue growth in an abnormal location
Explanation
A choristoma refers to abnormal tissue growth in an abnormal location. This means that the tissue is growing in a place where it is not typically found in the body. This can occur due to developmental abnormalities or genetic mutations. It is important to differentiate choristomas from normal tissue growth in order to diagnose and treat any potential health issues associated with this abnormality.
12.
If melanoma is disseminated at the time of diagnosis (stage 3) the tumor is usually fatal
Correct Answer
A. True
Explanation
If melanoma is disseminated at the time of diagnosis (stage 3), it means that the cancer has spread beyond the initial site to other parts of the body. This is a more advanced stage of melanoma and is associated with a poorer prognosis. The spread of cancer cells to distant organs or lymph nodes makes it more difficult to treat and control the disease. Therefore, in most cases, when melanoma is disseminated at the time of diagnosis, it is usually fatal.
13.
Liesegang ring calcifications are seen in what tumor ?
Correct Answer
A. CEOT
Explanation
Liesegang ring calcifications are commonly seen in calcifying epithelial odontogenic tumors (CEOT). CEOT is a rare benign odontogenic tumor that arises from the cells of the dental epithelium. These tumors often exhibit a characteristic pattern of calcifications known as Liesegang rings, which are concentric rings of calcified material. Therefore, the correct answer is CEOT.
14.
Gingival cyst of newborn is found on what intraoral structure ?
Correct Answer
B. Alveolar ridge
Explanation
A gingival cyst of newborn is a benign cyst that occurs in the mouth of newborns. It is typically found on the alveolar ridge, which is the bony ridge that contains the sockets of the teeth. This cyst is usually filled with fluid and appears as a small, bluish swelling on the gum tissue. It is important to note that this cyst is usually harmless and does not require treatment, as it tends to resolve on its own within a few weeks.
15.
Dentigerous cyst is said to have what origin ?
Correct Answer
A. Developmental non-inflammatory
Explanation
The correct answer is "developmental non-inflammatory" because a dentigerous cyst is a type of cyst that forms around an unerupted tooth. It is caused by the accumulation of fluid between the tooth and the surrounding dental follicle, which is a normal developmental structure. This type of cyst is not caused by inflammation or infection, making it non-inflammatory in nature.
16.
What is the appearance of BCC ?
Correct Answer
A. Usually present as a raised rolled border
Explanation
BCC (Basal Cell Carcinoma) typically appears as a raised rolled border. This means that the border of the lesion is elevated and has a rolled or rounded appearance. This characteristic is often seen in BCC, which is the most common type of skin cancer. The raised rolled border is an important clinical feature that can help in identifying and diagnosing BCC.
17.
When can nicotine stomatitis regression be seen with cessation of irritation ?
Correct Answer
B. 14 days
Explanation
Nicotine stomatitis is a condition characterized by inflammation and white patches in the mouth caused by excessive tobacco use. When the irritation from tobacco use is stopped, the mouth has a chance to heal. In the case of nicotine stomatitis, regression of the condition can be seen within 14 days after cessation of irritation. This means that the inflammation and white patches in the mouth will start to improve and gradually disappear within this timeframe.
18.
Dentigerous cyst will rarely transform into what ?
Correct Answer
A. Ameloblastoma
Explanation
* Keratocystic odontogenic tumour / odontogenic keratocyst (OKC)
19.
what is the source of the epithelium associated with a dentigerous cyst ?
Correct Answer
A. Reduced enamel epithelium
Explanation
The source of the epithelium associated with a dentigerous cyst is the reduced enamel epithelium. This is the epithelium that surrounds the enamel organ during tooth development. It becomes reduced and forms a layer around the crown of the tooth after eruption. In the case of a dentigerous cyst, this reduced enamel epithelium becomes trapped around the crown of an unerupted tooth, leading to the formation of the cyst. The IEE (inner enamel epithelium) and OEE (outer enamel epithelium) are also involved in tooth development but are not specifically associated with dentigerous cysts.
20.
What is the treatment for SCC of the lower lip ?
Correct Answer
A. Surgery
Explanation
*Surgery alone - chemotherapy is not effective, so excision and or radiation is used
21.
What stain is used to stain ameloid for diagnosis which shows an apple-green under polarized light ?
Correct Answer
A. Congo red
Explanation
Congo red is the stain used to stain amyloid for diagnosis, which shows an apple-green color under polarized light. This stain specifically binds to the amyloid protein, allowing it to be visualized and diagnosed. Other stains mentioned, such as H&E, gimsa, and PAS, are not specific for amyloid and do not produce the characteristic apple-green color under polarized light.
22.
Where do most cases of lateral periodontal cyst occur ?
Correct Answer
B. Mandibular premolar-canine-lateral incisor area
Explanation
Most cases of lateral periodontal cyst occur in the mandibular premolar-canine-lateral incisor area.
23.
What histological form is most common to be found in ameloblastoma ?
Correct Answer
B. Follicular varient
Explanation
The most common histological form found in ameloblastoma is the follicular variant. This variant is characterized by the presence of islands or nests of odontogenic epithelium that are surrounded by a fibrous capsule. It is often associated with the formation of cysts and can exhibit different patterns such as follicular, plexiform, or trabecular. The follicular variant is considered the classic and most common histological form of ameloblastoma.
24.
What teeth are usually involved for cementoblastoma ?
Correct Answer
A. Mandibular molar teeth
Explanation
Cementoblastoma is a rare benign tumor that arises from the cementum, which is the hard tissue that covers the roots of teeth. It is typically found in the mandibular molar teeth, specifically the first and second molars. This tumor is usually asymptomatic and may cause pain or swelling in the affected area. It is important to diagnose and treat cementoblastoma early to prevent complications such as tooth loss or damage to surrounding structures.
25.
Neoplastic cells in pindborg tumor are thought to be of what origin ?
Correct Answer
A. Stratum intermedium
Explanation
The correct answer is stratum intermedium. In Pindborg tumor, neoplastic cells are believed to originate from the stratum intermedium. The stratum intermedium is a layer of cells located between the ameloblasts and the stellate reticulum in the enamel organ. This layer plays a role in enamel formation and is involved in the development of Pindborg tumor, a rare benign odontogenic tumor.