MDS PREP
Which of the following is most sensitive to radiation induced cancer
1. Nerves
2. Female breast
3. Thyroid
4. Skin
Oral Pathology
Answer: 2
The female breast is most sensitive to radiation-induced cancer.
The substance most commonly used for protection against X-ray radiations is
1. Zinc
2. Steel
3. Lead
4. Porcelain
Oral Pathology
Answer: 3
Lead is the most commonly used substance for protection against X-ray radiation.
Orange peel and ground glass radiographic appearance is observed in case of
1. Paget"s disease
2. Ewing"s sarcoma
3. Osteosarcoma
4. Fibrous dysplasia
Orange peel and ground glass radiographic appearance is observed in fibrous dysplasia.
Koebner"s phenomenon is seen with
1. Erythema multiforme
2. Pemphigoid
3. Psoriasis
4. Impetigo
Oral Pathology
Answer: 3
Koebner's phenomenon refers to the development of skin lesions at the site of trauma in individuals with certain skin conditions. It is most commonly associated with psoriasis, where new psoriatic plaques can form following skin injury or trauma.
An exophytic papillary lesionof the hard palate, consisting of a luminal layer of columnar cells resting on a cuboidal basal layer, with the connective tissue papillae containing plasma cells, could be
1. Monomorphic adenoma
2. Simple ductal papilloma
3. Oxyphilic adenoma
4. Sialadenoma papilliferum
Oral Pathology
Answer: 4
Sialadenoma papilliferum is a rare, benign
salivary gland tumor typically occurring in the palate. It presents as an
exophytic, papillary lesion and histologically shows a dual epithelial layer
(columnar and cuboidal) with connective tissue cores that may contain plasma
cells. The other options, such as monomorphic adenoma or simple ductal papilloma,
lack these specific histological features.
Which of the following is not characteristic of congenital syphilis?
1. Ghon complex
2. Interstitial keratitis
3. Mulberry molars
4. Notched incisors
Oral Pathology
Answer: 1
Ghon complex is associated with primary tuberculosis, not congenital syphilis. The other options (interstitial keratitis, mulberry molars, and notched incisors) are indeed characteristics of congenital syphilis.
Bell"s palsy is triggered by
1. Exposure to cold
2. Tooth extraction
3. Local and systemic infection
4. Any of the above
Oral Pathology
Answer: 4
Bell's palsy can be triggered by exposure to cold, tooth extraction, or infections.
Oral lesions on the tongue and other mucosal surfaces of the oral cavity is commonly caused by the deficiency of
1. Vit B
2. Niacin
3. Vit C
4. Vit K
Oral Pathology
Answer: 2
Oral lesions on the tongue are commonly caused by a deficiency of Niacin (Vitamin B3).