Mohs' Procedure

Mohs' Procedure

The Mohs' Procedure Scheme assesses 2 archival stained preparations, from 2 distinct Mohs’ surgery biopsies

Staining Criteria Handbook available in Members' Area

No. of assessment runs: 

6 distributions over a 12 month period 


Stains assessed:

Selected / In-house Material (all runs)  

Haematoxylin and Eosin (H&E) 

Toluidine Blue 


The first case should be the first Mohs case to be received into your department after the date requested.


 The second case should be slides from the first available archived Mohs case performed after the specified date. It should be an example of a Mohs case from the specified site or tissue composition requested. Tissue composition will be either;


❖ Cutaneous skin covered

❖ Mucosal / Conjunctiva epithelial, e.g. lip, eye

❖ Hair Bearing e.g. scalp

❖ Cartilaginous e.g. ear


Mohs’ Procedure is a precise surgical technique used to treat skin cancer.  It is carried out in a number of centres in the UK and overseas, including extensively in the US

During Mohs’ surgery, thin layers of cancer-containing skin are progressively removed and examined until only cancer-free tissue remains. 

As Mohs’ is a specialised procedure, it employs specialist handling, best practice, and close liaison with surgeons to ensure correct diagnosis.

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