Table 1.

Patient’s demographics, histopathologic diagnosis, and MMR proteins expression in sebaceous neoplasms

Group	Case (n=15)	Sex	Age (years old)	History of internal malignancy	Histology	MSH-2/ MLH-1
A	1A	m	48	yes	s. adenoma	−/+
	2A	f	43	yes	s. adenoma	−/+
	3A	m	67	no	s. adenoma	−/+
	4A	m	91	no	s. adenoma	+/+
	5A	m	78	no	s. adenoma	+/+
B	1B	m	48	yes	s. carcinoma	+/+
	2B	m	90	no	s. carcinoma	+/+
	3B	f	81	no	s. carcinoma	+/+
	4B	f	84	no	s. carcinoma	+/+
C	1C	m	56	yes	sebaceoma	−/+
	2C	m	58	yes	sebaceoma	undiagnostic
	3C	m	58	yes	sebaceoma	−/+
	4C	f	82	no	sebaceoma	+/+
	5C	m	66	no	sebaceoma	+/+
	6C	m	77	unknown	sebaceoma	undiagnostic

A, sebaceous adenoma; B, sebaceous carcinoma; C, sebaceoma

* (−), loss of staining for MSH-2/MLH-1; (+), presence of nuclear immunoreactivity for MSH-2/ MLH-1

* cases 1a and 1b, 1c and 3c, 4b and 4c corresponded to same patients