Test Code DEXT Dermatopathology Consultation, Wet Tissue
Ordering Guidance
This test is only for a dermatopathology wet tissue consultation. For a dermatologic consultation on paraffin embedded tissue and slides, order PATHC / Pathology Consultation.
Shipping Instructions
Attach the green "Attention Pathology" address label (T498) to the outside of the transport container before putting into the courier mailer.
Necessary Information
All requisition and supporting information must be submitted in English.
Each of the following items is required:
1. All requisitions must be labeled with:
-Patient name, date of birth and medical record number
-Name and phone number of the referring pathologist or ordering physician
-Anatomic site and collection date
2. A brief patient history is essential to achieve a consultation fully relevant to the ordering clinician’s needs.
3. Preliminary diagnosis or differential diagnosis
4. Clinical and/or dermoscopic images should be included if available. Submit with the request via Epic Care Everywhere, Mayo Clinic Image Share, or external storage device.
Specimen Required
Supplies: Dermatopathology Media (T101)
Sources: Skin or oral mucosa
Container/Tube: Screw-capped container or vial containing 10% formalin
Specimen Volume: Entire specimen
Collection Instructions: For scalp biopsies: when the differential diagnosis includes a scarring alopecia, 2 separate 4-mm punch biopsies are recommended (1 for vertical and 1 for horizontal sections). If a single scalp biopsy is received with the clinical diagnosis of a scarring alopecia, the specimen will be processed with horizontal sections.
Additional Information: STAT requests are not accepted for this test.
Useful For
Histologic diagnosis and differential diagnosis of cutaneous diseases
Reflex Tests
Test ID | Reporting Name | Available Separately | Always Performed |
---|---|---|---|
LEV2P | Level 2 Gross and microscopic | No | No |
LEV3P | Level 3 Gross and microscopic | No | No |
LEV4P | Level 4 Gross and microscopic | No | No |
Special Instructions
Method Name
Formalin-fixed tissues: Process/Embed
Serial sections: Hematoxylin and Eosin Stain/Light Microscopy
Reporting Name
Dermatopathology ConsultSpecimen Type
TissueSpecimen Minimum Volume
Size needed depends on diagnosis and size of lesion.
Specimen Stability Information
Specimen Type | Temperature | Time | Special Container |
---|---|---|---|
Tissue | Ambient |
Reject Due To
All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.Clinical Information
Dermatopathology involves histologic examination of skin biopsy and oral mucosal specimens.
Reference Values
Diagnosis and description of microscopic findings
Day(s) Performed
Monday through Friday
Report Available
3 to 5 days: Cases requiring additional material or ancillary testing may require additional time.Performing Laboratory
Mayo Clinic Laboratories in RochesterCPT Code Information
88302 (if appropriate)
88304 (if appropriate)
88305 (if appropriate)