Numbness of lip seen with no previous dental treatment ______________?
Correct answer: A. Meta static carcinoma
- A. Meta static carcinoma
- B. Central nervous system lesion
- C. Osteomyelitis
- D. Infection
Explanation
Unexplained numbness of the lower lip, or numb-chin syndrome, is an important warning sign of metastatic carcinoma involving the mandibular canal or mental nerve. Dental infection and osteomyelitis usually have local inflammatory or radiographic findings.
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