Dengue fever is a very common arthropod - borne infection in tropical countries. Neurological complications in dengue fever are relatively uncommon and among these, isolated cranial neuropathies have been reported only very rarely. We present an unusual neurological complication of Bell's palsy (lower motor neuron 7 th nerve palsy) associated with dengue infection. To the best of our knowledge, there have been very few documented cases of Flavivirus causing isolated Bell's palsy.
Cerebellitis is a rarely encountered complication of isoniazid therapy. Its occurrence is usually associated with concomitant renal disease and haemodialysis. Herein, we report the case of a patient with this complication who presented with isolated bilateral symmetrical dentate nucleus T2 hyperintensities on magnetic resonance imaging. Isoniazid neurotoxicity has never been reported to cause bilateral dentate hyperintensities, for which the differentials are few and include metronidazole toxicity.
Posterior reversible encephalopathy syndrome presents with neurological and imaging features that are reversible, if prompt diagnosis and treatment is undertaken. However, the disease has been more commonly described in adult population, especially in eclampsia. In the background of predisposing factors like renal disease or chemotherapy, the pediatric population is also at equal risk for this condition, as we would like to present through this case and also demonstrate the potential for complete reversal of symptoms and imaging findings if diagnosed without delay.
MRI-guided biopsies are being increasingly used for otherwise occult breast lesions. Clip migration has been reported however, to the best of our knowledge, there have been no documented cases of entire disappearance of a marker clip. Absence of the postbiopsy marker clip was noted when our patient returned for preoperative hook-wire localisation even though accurate clip placement had been confirmed on the post-MRI biopsy mammogram.
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