Loxosceles spiders can live in the household and have the potential to cause harm to human beings. Systemic signs and symptoms have rarely been reported on spider bites in the literature. We present a formerly healthy four-month-old girl applied to the hospital with complaints of irritability, swelling of the neck and suspected insect bite. The patient was admitted to the pediatric intensive care unit because of edema in the neck and scalp, with respiratory distress and impaired consciousness. Case was intubated, and emprical antibiotherapy started due to the coagulopathy, circulatory failure, CRP positivity. Empirical scorpion serum and snake serum was applied to the patient living in rural areas. Several days after the admittance, the family reported that they found a spider in the tent so the diagnosis of the case which developed a dermonecrosis around the bite zone was clarified. Dermonecrosis was debrided and followed-up. The patient was discharged without any apparent sequelae except for dermonecrosis after one month of hospitalization. We found it worthwhile to submit our case due to severe systemic findings and dermonecrosis due to spider stings which are rarely reported in the literature.

Keywords: Child, Dermonecrosis, Disseminated Intravascular Coagulation, Spider bite