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Test ID DEXT Dermatopathology Consultation, Wet Tissue

Ordering Guidance

This test is for a dermatopathology wet tissue consultation only. For a dermatologic consultation on paraffin embedded tissue and slides, order PATHC / Pathology Consultation.

Necessary Information

The following information 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. All specimens must be labeled with:

-Two patient identifiers (first and last name, date of birth or medical record number)

-Specimen type and anatomic site

3. A brief patient history is essential to achieve a consultation fully relevant to the ordering physician's needs.

4. Although a complete pathology report is not expected to be submitted with the specimen, a clinical diagnosis is required.

5. Clinical and/or dermoscopic imaging should also be included if available. Please submit either on CD with your request.


All requisition and supporting information must be submitted in English.

Specimen Required

Supplies: Dermatopathology Media (T101)

Sources: Skin or oral mucosa

Container/Tube: Regular serum vials with 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

Testing Algorithm

When this test is ordered, 1 of the 3 reflex tests will be performed at an additional charge. Appropriate additional stains and other ancillary testing may also be performed, at an additional charge, to determine a diagnosis.


For more information see Pathology Consultation Ordering Algorithm

Method Name

Formalin-fixed tissues: Process/Embed

Serial sections: Hematoxylin and Eosin Stain/Light Microscopy

Reporting Name

Dermatopathology Consult

Specimen Type


Specimen Minimum Volume

Size needed depends on diagnosis and size of lesion.

Specimen Stability Information

Specimen Type Temperature Time Special Container
Tissue Ambient

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 Rochester

CPT Code Information

88302 (if appropriate)

88304 (if appropriate)

88305 (if appropriate)

LOINC Code Information

Test ID Test Order Name Order LOINC Value
DEXT Dermatopathology Consult 60570-9


Result ID Test Result Name Result LOINC Value
71139 Interpretation 33746-9
71140 Participated in the Interpretation No LOINC Needed
71141 Report electronically signed by 19139-5
71142 Addendum 35265-8
71143 Gross Description 22634-0
71582 Disclaimer 62364-5
71854 Case Number 80398-1

Test Classification

Not Applicable