Conclusion and results
In conclusion, this case report highlights the importance of recognizing EN as a potential manifestation of streptococcal infection and emphasizes the value of a thorough clinical history, physical examination, and targeted laboratory investigations in establishing the diagnosis. The familial occurrence of EN in this case suggests a possible genetic predisposition or shared environmental exposure to the triggering pathogen. Prompt identification and appropriate management of the underlying cause are crucial for the optimal treatment of EN and the prevention of potential complications. Further research is needed to elucidate the genetic and environmental factors contributing to the development of familial EN and to improve our understanding of this rare condition.