MDS PREP
Green discolouration of teeth is seen in
1. Tetracycline therapy
2. Fluorosis
3. Erythroblastosis foetalis
4. None of the above
Oral Pathology
Answer: 3
Green discoloration of teeth is seen in erythroblastosis fetalis.
Prodromal symptomos precede 1 to 2 days before the onset of disease in
1) Viral fever
2) Erythema multiforme
3) Pemphigus
4) Pemphigoid
Oral Pathology
Answer: 1
Explanation: Prodromal symptoms are early signs that precede the full onset of a disease. In the case of viral fevers, patients often experience nonspecific symptoms such as malaise, fatigue, and low-grade fever 1 to 2 days before the more specific symptoms of the viral infection appear.
Palatal petechiae t are present in
1. hyperthyroidism
2. infectious mononucleosis
3. osteopetrosis
4. hypophosphatasia
Oral Pathology
Answer: 2
Palatal petechiae are often seen in infectious mononucleosis, which is caused by the Epstein-Barr virus.
Lichenoid reactions are mainly due to
1. Intake of certain drugs
2. Betel nut chewing
3. Cigarette smoking
4. Intake of alcohol
Oral Pathology
Answer: 1
Lichenoid reactions are mainly due to the intake of certain drugs.
All of the following statements about the typical feature of a periapical granuloma are true EXCEPT
1. It consists of proliferating granulation tissue
2. It can form only if the periapical bone is resorbed
3. It shows evidence of local antibody production
4. It results from immunologically mediated tissue damage
Oral Pathology
Answer: 2
Periapical granulomas were diagnosed as well-circumscribed periapical
radiolucency measuring less than 1.5 cm in diameter, periapical cysts were
characterized by well-defined periapical radiolucency with sclerotic borders
measuring greater than 1.5 cm, and periapical abscesses were characterized by
ill-defined periapical radiolucency with diffuse margins.
While bone resorption can occur in the presence of a periapical granuloma, it
is not a prerequisite for its formation. A periapical granuloma can develop in
response to pulp necrosis or infection without necessarily requiring bone
resorption to occur first. The granuloma can form as a reaction to the
inflammatory process, regardless of the state of the surrounding bone.
Which of the following cell types show abnormal function when there is a history in a young adult of multiple arm and leg fractures following minor falls, with a slight weakness of facial muscles on the left, mild anemia, and with generalized bony widening with partial obliteration of marrow spaces?
1) Granulocytic stem cells
2) Megakaryocytes
3) Plasma cells
4) Osteoclasts
General Pathology Answer: 4
Osteoclasts show abnormal function in conditions leading to multiple fractures, as they are responsible for bone resorption.
The following protein defects can cause hereditary spherocytosis except -
1) Ankyrin
2) Palladin
3) Glycophorin C
4) Anion transport protein
General Pathology
Answer: 3
Glycophorin C is not associated with hereditary spherocytosis; it is a sialoglycoprotein found in the red blood cell membrane, while ankyrin, palladin, and anion transport protein are involved in the structural integrity of the membrane.
All of the following may occur in achondroplasia, except
1. Short and thickened muscular extremities
2. Dwarfism
3. The elbows often cannot be folded
4. Bowed legs and small hands
Oral Pathology
Answer: 3
In achondroplasia, the elbows often cannot be folded is not true; they can be folded.