New Bolton Center Kennett Square, PA
Emergencies & Appointments:
Ryan Hospital Philadelphia, PA

Lab Sections

The Penn Vet Diagnostic Lab includes microbiologists, parasitologists, toxicologists, and board-certified anatomic and clinical pathologists, in addition to residents in training, technicians, and administrative staff whose collaborative efforts ensure that samples are given the utmost attention.

Diagnostic Parasitology Laboratory

Our Mailing Address

Where to mail your samples:

Ryan Veterinary Hospital, Room 4101
3900 Delancey Street
Philadelphia, PA 19104

  • Clinical Microbiology Laboratory

    The Ryan Veterinary Hospital Clinical Microbiology Laboratory (CML) performs routine diagnostic microbiology services primarily for Ryan patients.

    The lab performs all basic tests expected from a diagnostic lab (aerobic, anaerobic, fungal and mycobacterial culture; antibiotic susceptibility testing; and a variety of serologic tests).

    A range of specialist tests are sent out to reference laboratories, and the Ryan CML makes use of the facilities available at the Clinical Microbiology Lab at New Bolton Center, which is part of the Pennsylvania Animal Diagnostic Laboratory Service.

    Operational Procedures

    We also provide the above-mentioned services for veterinarians on a fee-for-service basis. Please call the lab for further information.

    Hours of Operation:  8:00 5:00 p.m., Monday through Friday.


    Shelley C Rankin PhD
    Chief of Service
    Office: 215-573-1189
    Lab: 215-898-7858
    Fax: 215-898-0503


    • Stephen Cole, VMD
    • Kathleen O'Shea
    • Michelle Traverse

      University of Pennsylvania
      School of Veterinary Medicine
      Matthew J. Ryan Veterinary Hospital
      Department of Microbiology
      3900 Spruce Street, Room 4106
      Philadelphia, PA 19104-6010
  • Clinical Pathology/Cytology Laboratory

    Clinical pathology is the study of disease in the living animal and encompasses hematology, clinical chemistry, cytopathology, endocrinology, urinalysis, coagulation, immunohematology, laboratory management and general pathology.

    We provide services to Matthew J. Ryan Veterinary Hospital patients, as well as researchers and veterinarians in the outside community. 

    Laboratory Hours:

    Weekdays 8:00 a.m. - 6:00 pm (last specimen by 5:30 pm)

    Weekends 9:00 a.m. - 2:00 p.m. (last specimen by 1:30 p.m.)

    Pathologist Hours:

    Cytology submissions between 8:00 a.m. - 3:30 p.m. are guaranteed same day results. STAT submissions will be read same day until 4:30 p.m.


    Marla Washington
    Laboratory Manager
    215.898.3339 Phone
    215.898.9352 Fax

    The clinical pathology/cytology laboratory offers cytology interpretation and a full range of services with one of the highest caseloads of any academic veterinary institution.

    Clinical Pathology 
    Phone: 215-898-8877

    Cytology & Clinical Laboratory Testing 
    Matthew J. Ryan Veterinary Hospital 
    Suite 4101, 
    3900 Delancey Street 
    Philadelphia, PA 19104 
    FAX: 215-898-9352
    (Cytology Submissions between 8 am and 3:30 pm are guaranteed same-day results)

  • Diagnostic Parasitology Laboratory

    The Diagnostic Parasitology Laboratory provides basic parasitology services for Penn Diagnostic Parasitology LaboratoryVet's large and small animal hospitals.

    Fecal examinations for parasite eggs and cysts, identification of intact parasites, quantitative fecal egg counts and serology for heartworm and some tick borne infections are all done in our lab in the Matthew J. Ryan Veterinary Hospital.

    Hours of operation:  8:30 a.m. to 4:00 p.m. Monday through Friday.

    Operational Procedures

    We also provide the services above for veterinarians on a referral basis. Please check the hospital's referral brochure for further information or call the lab.


    Thomas Nolan, PhD
    215.898.7895 Phone
    215.898.7183 Lab Phone
    215.573.8115 Fax

    Richard Marcantuno
    Clinical Parasitology Technician

    Contact the Parasitology Laboratory

    Phone: 215-898-7183
    FAX: 215-573-8115
    Matthew J. Ryan Veterinary Hospital
    Department of Parasitology
    Suite 4108, 3900 Delancey St.
    Philadelphia, PA 19104-6010

  • Histopathology (Biopsy and Autopsy Services)
    The Lab at Ryan

    The Biopsy and Autopsy Services have provided sample interpretation for veterinarians across the nation and abroad for more than 35 years. The high volume of service exemplifies the pursuit of academic excellence and quality diagnostics.

    The Biopsy Service comprises:

    • General Biopsy Service
    • Specialty Biopsy Services
      • Dermatopathology
      • Lymphoma Subtyping
      • Neuropathology
      • Ophthalmic Pathology
      • Oral Pathology
      • Osteopathology

    The Autopsy Service provides complete gross and histopathologic examinations on patients by referral from veterinarians.  Postmortem examinations can also be performed by veterinarians and tissues may be submitted through our Biopsy Service. Please refer to the guidelines for submission of referral autopsies.

    Laboratory Hours
    • Monday through Friday: 7:30 am – 5:00 pm
    • (Last specimen accessioned at 4:30 pm. Samples accepted without accessioning until 5 pm.)
    • Juli Burns, Laboratory Manager
    • Phone: 215-898-7874

    Biopsy samples can be sent to:
    Histopathology Lab
    C/O Juli Burns
    Matthew J. Ryan Veterinary Hospital
    Suite 4001
    3900 Delancey Street
    Philadelphia, PA 19104

    Histopathology Administration Office

    Office Hours:
    Weekdays: 8:30 am – 5:00 pm

    Phone: 215-898-8857/7871
    Fax: 215-898-0719

    Matthew J. Ryan Veterinary Hospital
    Suite 4005
    3900 Delancey Street
    Philadelphia, PA 19104

What Makes Penn Vet Diagnostic Laboratories Different

Penn Vet Diagnostic Laboratories offers a unique service to our customers, including:

  • Fast Turnaround Time & Assurance

    In addition to a fast turnaround time, a unique collaborative environment allows for daily consultation rounds to discuss difficult cases and achieve consensus.

    Each laboratory is closely aligned with Penn Vet's Veterinary Clinical Investigations Center (VCIC) where the primary focus is to implement clinical trials for client owned companion animals.

  • The Ability to Put Discovery to Practical Use

    Using the material provided by Penn's veterinary clients, more than 50 board certified veterinary pathologists have been trained.

    As members of a strong research environment, we take diagnostic discoveries from our laboratory and put them to practical use in veterinary medicine. For example, Penn Vet pathologists were the first to recognize the association between vaccination sites and development of sarcomas in cats.

    The microbiology laboratory focuses primarily on the transmission of methicillin-resistant staphylococci isolated from companion animals and their potential to be transmitted to humans.

    Landmark discoveries by Penn Vet’s diagnostic services have benefited not only the animals served, their work has spilled over into the field of human medicine through many collaborations across the Penn campus and the biomedical research community.