16 Facts About Juan Rosai

Juan Rosai was an Italian-born American physician who contributed to clinical research and education in the specialty of surgical pathology.

Juan Rosai was the principal author and editor of a major textbook in that field, and he characterized novel medical conditions such as Rosai-Dorfman disease and the desmoplastic small round cell tumor.

Juan Rosai was born in Poppi, a little town near Florence, province of Arezzo, in the region of Tuscany, Italy.

At the age of 15, Juan Rosai enrolled in the Faculty of Medicine at the University of Buenos Aires.

Juan Rosai completed his residency and fellowship in anatomic pathology at Washington University School of Medicine and Barnes Hospital under Lauren Ackerman's mentoring.

Juan Rosai left there in 1985 for an identical position at Yale University School of Medicine in New Haven, Connecticut, where he stayed until 1991.

From 1991 to 1999, Juan Rosai was the James Ewing Alumni Professor and Chairman of Pathology at Memorial Sloan-Kettering Cancer Center in New York City.

Juan Rosai maintained ties to Italy, his home country, throughout his life.

In 2000 Juan Rosai moved permanently back to Italy as Chairman of the Department of Anatomic Pathology at the Istituto Nazionale dei Tumori in Milan, Italy.

Juan Rosai was consultant pathologist for the Department of Pathology of the University of Utah and ARUP Laboratories, providing surgical pathology consultation through telepathology while still working in Milan.

Juan Rosai was an author of more than 400 scientific peer-reviewed papers on topics in pathology, including the seminal descriptions of entities such as sinus histiocytosis with massive lymphadenopathy, desmoplastic small round cell tumor, spindle-cell epithelial tumor with thymus-like differentiation of the thyroid, and sclerosing angiomatoid nodular transformation of the spleen.

Juan Rosai was Editor-in-Chief of the International Journal of Surgical Pathology until 2014 and served as a member of the editorial boards of several other pathology journals.

Juan Rosai was Editor-in-Chief of the 3rd Series of the Atlas of Tumor Pathology of the Armed Forces Institute of Pathology, and author of AFIP fascicles on Tumors of the Thymus and Tumors of the Thyroid Gland, and a book on the history of American surgical pathology called Guiding the Surgeon's Hand.

Juan Rosai's textbook is well known among pathologists due to its clear and didactic style, including illustrations as examples of key diagnostic features.

In 2010 Juan Rosai donated his entire seminars collection as an open and free educational resource.

Thanks to a collaborative effort between Juan Rosai, the United States and Canadian Academy of Pathology and Aperio ePathology the slide seminars are available as digital pathology files which can be freely accessed by pathologists across the world.