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Abducens nerve palsy and optic neuritis as initial manifestation in brucellosis
Basak Karakurum Goksel1, Deniz Yerdelen, Mehmet Karatas
1Department of Neurology, Baskent University Faculty of Medicine, Adana Teaching and Medical Research Centre, Adana, Turkey. bkarakurum@hotmail.com
Abstract:
Cranial nerve involvement in brucellosis is rare. We present a case of brucellosis presenting with optic neuritis and abducens nerve palsy on the left side. Cerebrospinal fluid findings indicated Brucella meningitis with high protein count, low sugar level and pleocystosis. In addition, Brucella agglutination test (Wright test) was found to be 1/128 in cerebrospinal fluid. Serum agglutination test for Brucella was also positive at 1/1280. This case was diagnosed as brucellosis involving optic and abducens nerves. The patient was treated by ceftriaxone (intravenous), rifampicin (orally) and doxycycline (orally). Two months later the patient's vision acuity in the left eye had moderately improved and the patient's left abducens palsy had almost disappeared. In conclusion, cranial nerve involvement in brucellosis can have good prognosis if anti-Brucella treatment is undertaken early.
Insights
Brucellosis rarely affects cranial nerves. Early antibiotic treatment for this infection, presenting as optic neuritis and abducens nerve palsy, led to significant patient recovery.
Area of Science:
- Neurology
- Infectious Diseases
- Ophthalmology
Background:
- Brucellosis is a zoonotic infection with diverse clinical manifestations.
- Cranial nerve involvement in brucellosis is uncommon, posing diagnostic challenges.
Observation:
- A case of brucellosis presented with left-sided optic neuritis and abducens nerve palsy.
- Cerebrospinal fluid analysis revealed Brucella meningitis with elevated protein, low glucose, and pleocytosis.
- Positive Brucella agglutination tests in both cerebrospinal fluid (1/128) and serum (1/1280) confirmed the diagnosis.
Findings:
- The patient received a combination therapy of intravenous ceftriaxone, oral rifampicin, and oral doxycycline.
- Two months post-treatment, significant improvement in left-eye visual acuity and near-complete resolution of left abducens palsy were observed.
Implications:
- This case highlights that cranial nerve brucellosis, though rare, can have a favorable prognosis.
- Prompt initiation of appropriate anti-Brucella therapy is crucial for favorable neurological outcomes in affected patients.
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