Microbiology and Pathology Quiz 6

A 7-year-old child develops small bluish-white spots on an erythematous base along the buccal mucosa. Two days later, a blotchy maculopapular rash appears on the face and spreads downward. Which infection best explains these findings?

A 70-year-old woman presents with painful vesicular eruptions along the distribution of the right ophthalmic division (V1) of the trigeminal nerve. She also has lesions at the tip of her nose. What is the most appropriate immediate concern?

A middle-aged man develops a firm, slowly enlarging swelling at the angle of the mandible. Over time it becomes “woody hard,” then forms multiple draining sinuses that exude yellow granules. Which statement best describes this condition?

A denture-wearing patient complains of a burning sensation on the palate and tongue. You see erythematous areas under the denture and removable white plaques on the dorsal tongue. What is the most likely diagnosis?

Which oral condition is least characteristic of HIV/AIDS?

An asthmatic patient develops acute bronchospasm and urticaria minutes after receiving penicillin. This is an example of which immunologic mechanism?

Which feature is most characteristic of apoptosis rather than necrosis?

A patient with severe peripheral vascular disease develops black, mummified toes which later become infected. This pattern of tissue death is best described as:

Which of the following diseases is most typically associated with granulomatous inflammation?

Which statement about dental plaque is most accurate from a microbiologic standpoint?

Which microorganism is most strongly associated with initiation of smooth-surface dental caries?

Which clinical finding best reflects chronic rather than acute inflammation?

A young adult with localized aggressive periodontitis presents with rapid bone loss around first molars and incisors. Which organism is most strongly associated with this condition?

A patient presents with gingival enlargement, spontaneous gingival bleeding, fatigue, and recurrent infections. CBC reveals marked leukocytosis with many immature blast cells. What is the most likely underlying disease?

A middle-aged patient has multiple fragile intraoral blisters that rupture easily, leaving painful erosions. Biopsy shows intraepithelial clefting with acantholysis and antibodies against desmosomes. Which diagnosis is most consistent?

Which condition is least likely to present with vesicles or bullae in the oral mucosa or skin?

A patient with long-standing secondary hyperparathyroidism develops a radiolucent lesion in the mandible composed of numerous multinucleated giant cells. Which term is most appropriate for this lesion?

A stressed university student presents with painful gingiva, punched-out papillae, spontaneous bleeding, and a fetid odor. Which microbial pattern is most characteristic of this disease?

In classic pulmonary tuberculosis, which description best characterizes the necrosis within the granulomas?

Which feature best distinguishes a malignant tumor from a benign tumor?