Mayo Clinic's Department of Laboratory Medicine and Pathology is one of the largest clinical laboratories in the world. It is composed of more than 3,200 individuals working in 40 specialty laboratories performing more than 20 million tests a year.

A highly skilled team of medical professionals including physicians, scientists, medical technologists, medical technicians, lab assistants, biologists, chemists, microbiologists, geneticists, and other specialists work collaboratively. The department receives specimens for testing from Mayo Clinic and Mayo Clinic Health System and is a reference laboratory for other clinics and hospitals, both nationally and internationally.

The Division of Anatomic Pathology has 60 pathologists, with specialty expertise in all areas of surgical pathology. The division is organized around working groups dedicated to specific organ systems, but all members contribute service to general areas as well, such as the frozen section lab, autopsy, and cytology.

The division is supported by a full-service histology and immunohistochemistry laboratory, an active electron microscopy section, and a growing in-situ hybridization lab. The hospital surgical pathology practice is unique in its heavy reliance on rapid frozen section diagnosis, providing trainees a valuable opportunity for immediate correlation of gross and microscopic pathology.

The annual volume of neuropathology specimens at Mayo Clinic's campus in Rochester, Minnesota, includes 500 autopsy brain and 2,200 neurosurgical, 650 skeletal muscle, 425 peripheral nerve, and 200 eye specimens. Mayo Clinic's specially trained neuropathologists are directly involved in your training.