MDS PREP
Hypopigmentation, gray streaks of hair, degranulation defect of neutrophils and neuropathy are seen in
1. Aleukaemic leukaemia
2. Chronic granulocytic leukaemia
3. Lazy leukocyte syndrome
4. Chediak-Higashi syndrome
Oral Pathology
Answer: 4
Hypopigmentation, gray streaks of hair, degranulation defect of neutrophils, and neuropathy are seen in Chediak-Higashi syndrome.
Which of the following sexually transimitted is not of diseases either bacterial or chlamydial origin
1. Gonnorhoea
2. Syphilis
3. Molluscum contagiosum
4. Lymphogranuloma venereum
Oral Pathology
Answer: 3
Molluscum contagiosum is a viral infection caused by a poxvirus, not a bacterial or chlamydial infection. The other options (gonorrhea, syphilis, and lymphogranuloma venereum) are all caused by bacteria.
Which of the following is associated with a low concentration of ionized calcium in the serum?
1. Hypothyroidism
2. Osteogenesis imperfecta
3. Paget"s disease of the bone
4. Tetany
Oral Pathology
Answer: 4
Tetany is associated with a low concentration of ionized calcium in the serum.
A patient requires tooth extraction from an area that has been subjected to radiation therapy. Which of the following represents the greatest danger to this patient
1. Alveolar osteitis
2. Osteoradionecrosis
3. Prolonged healing
4. Fracture of the mandible
Oral Pathology
Answer: 2
The greatest danger to a patient requiring tooth extraction after radiation therapy is osteoradionecrosis.
In radiobiology, the "latent period" represents the period of time between
1. Cell rest and cell mitosis
2. The first and last dose in radiation therapy
3. Film exposure and image development
4. Radiation exposure and its biological effects
In radiobiology, the "latent period" represents the time between radiation exposure and its biological effects.
A patient comes with emotional problems, increased salivation, pallor of oral mucosa and a grayish blue discolouration of the gingival. These findings are most consistent with a clinical impression of
1. Cherubism
2. Cretinism
3. Pierre-Robin syndrome
4. Lead poisoning
Oral Pathology
Answer: 4
The findings of emotional problems, increased salivation, pallor, and grayish-blue discoloration of the gingiva are consistent with lead poisoning.
A bacterial disease with oral manifestations is
1) Herpes Measles
2) Measles
3) Diphtheria
4) Leishmaniasis
Oral Pathology
Answer: 3
Diphtheria serious bacterial infection that usually affects the mucous
membranes of the nose and throat.
Diphtheria signs and symptoms usually begin 2 to 5 days after a person becomes
infected. Signs and symptoms may include:
A thick, gray membrane covering the throat and tonsils
A sore throat and hoarseness
Swollen glands (enlarged lymph nodes) in the neck
Difficulty breathing or rapid breathing
Nasal discharge
Fever and chills
Tiredness
Skin (cutaneous) diphtheria
A second type of diphtheria can affect the skin, causing pain, redness and
swelling similar to other bacterial skin infections. Ulcers covered by a gray
membrane also may be a sign of skin diphtheria.
Letterer-Siwe disease is a disturbance of
1) Protein metabolism
2) Lipid metabolism
3) Mucopolysaccharide metabolism
4) Carbohydrate metabolism
Oral Pathology
Answer: 2
Letterer-Siwe disease is a type of Langerhans cell histiocytosis that is associated with disturbances in lipid metabolism.
Letterer-Siwe disease is a form of Langerhans cell
histiocytosis (LCH), which is characterized by the proliferation of
Langerhans cells, a type of dendritic cell involved in immune response. This
disease primarily affects children and can present with a variety of symptoms,
including:
Bone Lesions: Osteolytic bone lesions, particularly in
the skull, vertebrae, and long bones.
Skin Rash: Erythematous lesions or seborrheic
dermatitis-like rashes.
Hematological Abnormalities: Anemia, thrombocytopenia,
and leukopenia may occur.
Organ Involvement: It can affect multiple organs,
including the liver, spleen, and lungs.
Metabolic Disturbance:
Lipid Metabolism: Letterer-Siwe disease is associated
with disturbances in lipid metabolism, particularly due to the accumulation
of lipids in the affected tissues. The Langerhans cells in this condition
can exhibit abnormal lipid storage, which is a hallmark of the disease.