A female diabetic having severe ear pain, granulation tissue in external auditary canal and facial palsy is due to –
**Core Concept**
Diabetic external otitis, also known as diabetic ear or necrotizing external otitis, is a severe infection of the external auditory canal that occurs in individuals with diabetes mellitus. This condition is characterized by severe ear pain, granulation tissue in the external auditory canal, and potentially life-threatening complications such as facial palsy.
**Why the Correct Answer is Right**
The correct diagnosis is diabetic external otitis, which is a result of the compromised immune system and neuropathy associated with diabetes. The granulation tissue in the external auditory canal is a hallmark of this condition, indicating an aggressive bacterial infection. The facial palsy in this case is likely due to the spread of the infection to the facial nerve, which runs through the temporal bone near the external auditory canal. The bacteria responsible for this infection are often Pseudomonas aeruginosa or other gram-negative bacteria.
**Why Each Wrong Option is Incorrect**
* **Option A:** This option is not relevant to the clinical presentation described.
* **Option B:** This option is incorrect because it does not match the clinical presentation of diabetic external otitis.
* **Option C:** This option is not a common cause of the symptoms described in the question.
**Clinical Pearl / High-Yield Fact**
Diabetic external otitis is a medical emergency that requires prompt treatment with antibiotics, pain management, and possibly surgical debridement to remove infected tissue. Early recognition and treatment can prevent serious complications such as facial palsy and meningitis.
**Correct Answer: C. Diabetic external otitis.**