Program and Services

University of Minnesota Neuromuscular Pathology Laboratory
Download 2016-2018 CLIA Certificate

Lab receiving Hours: Monday – Friday, 8:00 am – 2:00 pm

The Neuromuscular Pathology laboratory has been providing services for over 20 years by a competent, experienced technical and professional staff. Quality interpretation of approximately 150 neuromuscular biopsy specimens is provided annually. Consultation by telephone is available with formal reports mailed or faxed to the requesting physicians and medical records department.


Lab Number: 612-626-4703
After Hours Number: 612-899-5510
Fax: 612-301-1455

Peter I. Karachunski, MD, Medical Director

Lab Request Forms & Instructions

Neuromuscular Pathology Request Forms
Immunohistochemistry Request Form
Specimen Preparation Instructions
Muscle Biopsy Protocol
Nerve Protocol Protocol

Phone: 612-626-2499

Our Services

Neuromuscular Pathology

More than 150 neuromuscular specimens are processed yearly by the Neuromuscular Laboratory with Pathologic interpretation by Dr.’s Peter I. Karachunski and Georgios Manousakis. Personal consultation for directing essential testing and services is available to the clinician by experienced and specialized medical staff. Detailed instructions for handling muscle and nerve tissue samples can be faxed or sent with the proper fixatives for the requested studies to be done by calling (612) 626-4703. Access the Specimen Preparation Instructions.

Methodology and Reporting

Muscle light microscopy, enzyme histochemistry, and immunohistochemistry are performed on each case when requested. The results of these studies are integrated with the clinical presentation to provide a final interpretation of the patient's neuromuscular disease. Specimens received are processed immediately and a preliminary report is available by phone on request. The final report is usually ready within seven to ten days.