Fine structural analysis of the stinger in venom apparatus of the scorpion Euscorpius mingrelicus (Scorpiones: Euscorpiidae)

In this study, the morphology, histology and fine structure of the stinger, a part of the venom apparatus of Euscorpius mingrelicus (Kessler, 1874) (Scorpiones: Euscorpiidae) were studied by light microscopy and transmission electron microscopy (TEM). The stinger, located at the end section of the telson, is sickle-shaped. The venom is ejected through a pair of venom pores on its subterminal portion. Both venom ducts extend along the stinger without contact with each other since they are separated by connective tissue cells. The stinger cuticle is composed of two layers. Additionally, there are many pore canals and some hemolymph vessels in the cuticle. This work constitutes the first histological and fine structure study on Euscorpius mingrelicus stinger.(AU)

Restoring vision with an early penetrating keratoplasty after bee sting injury: a case report / 国际眼科杂志(Guoji Yanke Zazhi)

·A 27-year-old man was stung by a bee presented with severe pain in the right eye. It was associated with reduced vision and swelling of the eyelids. A retained stinger was identified at the center of the cornea, surrounded by dense corneal oedema and numerous folds in the Descemet's membrane. The sting was removed completely. He subsequently developed persistent corneal oedema and heterochromia iridis. He was treated with intensive topical steroids. He underwent penetrating keratoplasty five months after the injury. His visual acuity was satisfactory one year after the surgery. Corneal oedema is an uncommon complication of bee sting injuries. It can be persistent and results in severe visual impairment. An early penetrating keratoplasty offers a good visual outcome after bee sting injury.