Myiasis, or the infiltration of the botfly larvae, is a relatively frequent problem encountered by travelers to parts of Latin America. This is a novel case report that documents a Dermatobia hominis infestation of the left facial region with secondary periorbital cellulitis diagnosed by point-of-care ultrasonography.

Congenital hyperinsulinism is a rare disorder that commonly presents in the immediate postnatal period as persistent hypoglycemia. The condition is frequently resistant to medical therapies, and the genetic mutations implicated in the disorder can be predictive of response to therapy. Evaluation of hypoglycemia in the illustrative case presented in this article led to genetic testing identifying recessive mutations in the potassium channel subunits of the beta-islet pancreatic cells. Potassium channel defects are often refractory to medical therapies, so near-total pancreatectomy is usually indicated; however, genetic mutations leading to metabolic dysregulation within the beta-islet pancreatic cells are usually responsive to medical therapy. Aggressive treatment of hypoglycemia in the setting of congenital hyperinsulinism is important to prevent long-term neurologic sequelae secondary to hypoglycemia-induced brain injury. [Pediatr Ann. 2017;46(11):e409-e414.].

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A method is proposed for assessing nutrient pollution flows in the catchment - water body system, based on the following indicators: the eutrophication potential of the catchment area and water body, the eutrophication potential of diffuse pollution of the catchment area of a water body, the potential for retaining biogenic pollution in the catchment area of a water body. The components of the eutrophication potential for the catchment area of the river Kazanka, located in the left - bank of the Kuibyshev reservoir. It has been established that the eutrophication potential of the catchment area and the waters of the river Kazanka for nitrogen and phosphorus compounds is 2259 and 170 and 705 and 56 t • year −1, respectively. It is shown that the potential for retaining nutrient pollution in the catchment area of the river Kazanka of nitrogen and phosphorus compounds is 69 and 67%, respectively.

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