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Indian J Pathol Microbiol. 2019 Oct-Dec;62(4):561-565. doi: 10.4103/IJPM.IJPM_752_18.

The role of p53, Ki-67 and laminin expression in the differential diagnosis of keratoacanthoma and well-differentiated SCC.

Author information

1
Department of Pathology, School of Medicine, Balikesir University, Balikesir, Turkey.
2
Department of Pathology, Adana Numune Training and Research Hospital, Health Science University, Adana, Turkey.

Abstract

Introduction:

We have aimed to evaluate the difference between the expression of p53, Ki-67, and laminin in keratoacanthoma and well-differentiated SCC (SCC) and to determine its importance in differential diagnosis.

Methods:

This study totally included 46 cases consisting of 23 cases with keratoacanthoma and 23 with SCC. As well as age, gender, localization, and diameter of the lesion, the expression of p53, Ki-67 and laminin was evaluated.

Results:

No statistically significant difference was found between KA and well-differentiated SCC in terms of diameter, age, and localization. There was a statistically significant difference between KA and well-differentiated SCC in terms of p53 and Ki-67 staining (P < 0.001). Increased expression of p53 and Ki-67 was found in well-differentiated SCC. A statistically significant correlation was present between the expression of p53 and Ki-67 in KA. A statistically significant difference was detected between KA and well-differentiated SCC in terms of laminin staining (P = 0.018). Increased laminin expression was determined in well-differentiated SCC.

Conclusion:

We have determined in this study that p53, Ki-67 and laminin may be used as adjuvant immunohistochemical markers in differential diagnosis of KA and well-differentiated SCC.

KEYWORDS:

Differential diagnosis; immunohistochemistry; keratoacanthoma; well-differentiated SCC

PMID:
31611440
DOI:
10.4103/IJPM.IJPM_752_18

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