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Repeat head and neck MRA (25 days after symptom onset) showed persistent stenosis in the bilateral V4 segments of the vertebral arteries and patency in bilateral posterior cerebral arteries (arrow).
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Background
To date, only 25 cases of cerebral infarction following a bee or wasp sting have been reported. Due to its rarity, undefined pathogenesis, and unique clinical features, we report a case of a 62-year-old man with progressive cerebral infarction following bee stings, possibly related to vasospasm. Furthermore, we review relevant literature...
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Purpose
Replaced posterior cerebral artery (PCA), defined as a hyperplastic anterior choroidal artery (AChA) supplying all branches of the PCA, is an extremely rare anatomical variation. To the best of our knowledge, there are only a few reports of replaced PCA.
Methods
Herein, we report a case of replaced PCA diagnosed by digital subtraction angi...
Citations
... Besides hypersensitivity responses, neurological complications are even less common and rarer, affecting both the central (CNS) and peripheral nervous system (PNS). Among Hymenoptera sting-related CNS damage, some authors report several neurological severe manifestations, such as acute disseminated encephalomyelitis or cerebral infarction [16]. Regarding PNS damage, Hymenoptera venom was linked to peripheral neuritis, optic neuropathy, and myasthenia gravis [17]. ...
Introduction. Neurological manifestations secondary to Hymenoptera stings are rare. However, the literature describes cases of severe central and peripheral nervous system damage. Suspected pathophysiological mechanisms include hypoxic-ischemic damage, demyelination, and the direct neurotoxic effect of venoms. In this context, bee stings could be a possible atypical causative factor for Guillan–Barré syndrome and chronic inflammatory demyelinating polyneuropathy. Case report. We present the case of a 32-year-old patient who declared the presence of a bee sting two weeks before the onset of neurological manifestations (flaccid quadriparesis, predominantly distal, with paresthesia at the same level) that were initially diagnosed as a Guillain Barré syndrome. Despite the treatment with immunoglobulins in the acute phase, the worsening of the motor deficit after one month required a new course of immunoglobulins, associating corticosteroids, with initially favorable evolution. However, the presence of a new relapse after eight weeks, correlated with changes such as albumin-cytological dissociation in the examination of the cerebrospinal fluid and the appearance of active denervation on the electroneuromyography study, established the final diagnosis of chronic inflammatory demyelinating polyneuropathy. Conclusions. We consider the presented case proof of the relationship between the Hymenoptera sting and various peripheral nervous system pathologies. Inflammatory and demyelinating changes common to Guillain-Barré syndrome and chronic inflammatory demyelinating polyneuropathy appear to be the primary pathophysiological mechanism to explain this uncommon correlation.
Introduction: Bees are a member of the Hymenoptera order, which is one of the four largest insect orders in
the world. In this article, we report the skin reactions caused by the hornet from the Kerman city.
Case report: The patient was a 23-year-old man, who was attacked by a species of bee on July 16, 2022 in
Kerman city. The specimen bee was identified as oriental hornet. The clinical findings including a lesion
surrounded by skin reactions and circular and red spots were showed after one hour in sting site. The sting site
on patient's body was washed with soap and water daily. The symptoms were disappeared and the target area
improved after 13 days.
Conclusion: The results of this study can help professionals to take necessary measures when exposed with
bee stings. Also, due to the lack of accurate reports to estimate their statistics and risks in the country, it is
suggested to create a registration system for bee sting cases
