A high degree of chromosomal instability at 13q14 in cutaneous squamous cell carcinomas: indication for a role of a tumour suppressor gene other than Rb

Table 1

LOH in cutaneous squamous cell carcinomas at the D13S153 and D13S118 loci: correlation with Rb immunohistochemistry

Patient	LOH at D13S153	LOH at D13S118	Rb expression
LOH, loss of heterozygosity; ND, not determined; NI, non-informative; Rb, retinoblastoma protein.
1	Yes	No	Strongly +ve
2	Yes	Yes	+ve
3	Yes	No	−ve
4	No	No	+ve
5	No	Yes	+ve
6	No	Yes	+ve
7	No	No	Weakly +ve
8	Yes	Yes	+ve
9	NI	NI	+ve
10	No	No	+ve
11	NI	NI	+ve
12	No	No	ND
13	NI	Yes	+ve

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