MDS PREP
At what level in the skin do bullae MOST likely develop in a localized cutaneous infection around the mouth with phage group II Staphylococcus aureus?
1) Across the basal cells
2) Below the basement membrane
3) Between the basal cells and the basement membrane
4) High in the epidermis
General Pathology Answer: 4
Bullae in a localized cutaneous infection with Staphylococcus aureus typically develop high in the epidermis due to the infection.
Microscopically, the primary cells which characterize eosinophilic granuloma are
1. Fibroblasts
2. Histiocytes
3. Plasma cells
4. Epithelial cells
Oral Pathology
Answer: 2
The primary cells that characterize eosinophilic granuloma are histiocytes.
Gingiva is most commonly affected by deficiency of
1. Vitamin A
2. Vitamin D
3. Vitamin C
4. Vitamin B
Oral Pathology
Answer: 3
Gingiva is most commonly affected by a deficiency of Vitamin C.
A case presenting with a gray coloured pseudomembrane whose removal is difficult and painful, can be
1) ANUG
2) Diphtheritic lesion
3) Secondary stage of syphilis
4) Desquamative gingivitis
Oral Pathology
Answer: 2
Diphtheritic lesions are caused by Corynebacterium diphtheriae. The hallmark of diphtheria is a tough gray pseudomembrane on mucosal surfaces like the pharynx or oral cavity. Attempting to remove it causes pain and bleeding. Other conditions like ANUG (acute necrotizing ulcerative gingivitis) produce pseudomembranes but are more localized and less gray.
Which of the following has been implicated due to sunlight
1. Basal cell carcinoma
2. Lymphoepithelioma
3. Junctional nevus
4. Verruca vulgaris
Oral Pathology
Answer: 1
Basal cell carcinoma (BCC) is a type of skin cancer that is strongly associated with prolonged exposure to ultraviolet (UV) radiation from sunlight.
In the context of autoimmune diseases, which autoantibody is primarily associated with rheumatoid arthritis?
1) Anti-acetylcholine receptor antibody
2) Anti-double stranded DNA antibody
3) Anti-histone antibody
4) Rheumatoid factor
Rheumatoid factor is the autoantibody primarily associated with rheumatoid arthritis, indicating an autoimmune response.
Aplastic anaemia is common with
1. Chloramphenicol
2. Cephalosporin
3. Tetracycline
4. Pencillin
Oral Pathology
Answer: 1
Aplastic anemia is commonly associated with chloramphenicol.
What is the primary lesion associated with an increased risk of adenocarcinoma of the distal esophagus?
1) Generalized fatigue
2) Goodpasture's syndrome
3) Barrett's esophagus
4) Sarcoma
Barrett's esophagus is the primary lesion associated with an increased risk of adenocarcinoma of the distal esophagus.