. Author manuscript; available in PMC: 2012 Oct 4.

Published in final edited form as: J Rheumatol. 2012 Aug 1;39(10):1964–1970. doi: 10.3899/jrheum.120493

Table 2.

A comparison of different histopathological classification systems.

Classification Used in This Project	Villous Atrophy
Marsh classification²⁶	Type IIIa	Type IIIb	Type IIIc
Marsh description	Flat destructive
Corazza classification⁵²	Grade B1	Grade B2
SnoMed codes	M58, D6218, M58005	M58, D6218, M58006	M58, D6218, M58007
KVAST/Alexander classification	III Partial VA	IV Subtotal VA	IV Total VA
Characteristics
Villous atrophy	+	++	++
IEL	+	+	+
Crypt hyperplasia	+	++	++

IEL: intraepithelial lymphocytosis.