Mask-like appearance of face with narrowing of aperture and rigidity of the mucosa is characteristic of______________?
Correct answer: A. Progressive systemic sclerosis
- A. Progressive systemic sclerosis
- B. Tetanus
- C. Multiple sclerosis
- D. Osteomalacia
Explanation
Progressive systemic sclerosis causes collagen deposition and fibrosis, producing a tight mask-like face, reduced mouth opening, and rigid oral mucosa. Tetanus causes muscle spasms and trismus but not this characteristic scleroderma facial appearance.
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