From 1900 until his death in 1924 he was a full professor of general and experimental pathology.

He earned a doctorate in experimental pathology from the University of Pennsylvania.

He studied medicine in Paris, where he later became a professor of experimental pathology and physiology.

In 1901 he became a privat-docent for general and experimental pathology, followed by a promotion as associate professor in 1906.

In the field of experimental pathology, he performed research of cholelithiasis and hepatic disease.

From 1879 until 1892 he was chief of general and experimental pathology at the Jagiellonian University in Cracow.

His fields are oncology and experimental pathology.

SUNY Buffalo appointed him an associate professor of experimental pathology the next year.

In the broadest sense, nearly all research which links manifestations of disease to identifiable processes in cells, tissues, or organs can be considered experimental pathology.

Following in the footsteps of Traube, Fraenkel's first works were on experimental pathology, among them being the following: