Question 401 · LDEK · Periapical diseases
Match the histologic pattern and proper diagnosis:
1) central cavity filled with eosinophilic fluid is lined by stratified squamous epithelium;
2) an increase in density of trabecular bone and inflammation;
3) localized destructive lesion of liquefaction necrosis containing disintegrating polymorphonuclear leukocytes, debris and cell remnants and an accumulation of purulent exudate;
4) sinus tract lined partially or totally by epithelium surrounded by inflamed connective tissue;
5) polymorphonuclear leukocytes and macrophages visible within a localized area at the apex; a) condensing osteitis; b) apical cyst; c) chronic apical abscess; d) acute apical periodontitis; e) acute apical abscess.
The correct answer is:
2) an increase in density of trabecular bone and inflammation;
3) localized destructive lesion of liquefaction necrosis containing disintegrating polymorphonuclear leukocytes, debris and cell remnants and an accumulation of purulent exudate;
4) sinus tract lined partially or totally by epithelium surrounded by inflamed connective tissue;
5) polymorphonuclear leukocytes and macrophages visible within a localized area at the apex; a) condensing osteitis; b) apical cyst; c) chronic apical abscess; d) acute apical periodontitis; e) acute apical abscess.
The correct answer is:
- A. 1b, 2a, 3e, 4c, 5d.
- B. 1a, 2b, 3c, 4d, 5e.
- C. 1a, 2d, 3c, 4d, 5e.
- D. 1b, 2a, 3c, 4e, 5d.
- E. 1b, 2d, 3a, 4e, 5c.
Hint
Start with the most distinctive features: an epithelium-lined cavity, denser bone, and an epithelium-lined drainage tract.
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