Emergency radiology eponyms: part 2--Naclerio's V sign to Fournier gangrene.

An eponym is a name based on the name of a person, frequently as a means to honor him/her, and it can be used to concisely communicate or summarize a complex abnormality or injury. However, inappropriate use of an eponym may lead to potentially dangerous miscommunication. Moreover, an eponym may honor the incorrect person or a person who falls into disrepute. Despite their limitations, eponyms are still widespread in medicine. Many commonly used eponyms applied to extremity fractures should be familiar to most emergency radiologists and have been previously reported. Yet, a number of non-extremity eponyms can be encountered in an emergency radiology practice as well. This other group of eponyms encompasses a spectrum of traumatic and nontraumatic pathology. In this second part of a two-part series, the authors discuss a number of non-extremity emergency radiology eponyms, including relevant clinical and imaging features, as well biographical information of the eponyms' namesakes.