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2023, Number 1

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Dermatología Cosmética, Médica y Quirúrgica 2023; 21 (1)

Scalp biopsy technique for alopecia diagnosis

Macías APA, Morales CCA, Balaguera OV

Language: Spanish
References: 14
Page: 7-12
PDF size: 307.93 Kb.


ABSTRACT

Introduction: scalp biopsy using a punch is a simple technique, useful to make or confirm a diagnosis of alopecia, mainly of the scarring type. Choosing the right site improves the diagnostic accuracy of the test, this can be achieved using dermoscopy. It is likewise important to know and follow each of the steps described below in order to obtain an adequate sample for histopathological analysis.
Development: the surgical technique of scalp punch biopsy is illustrated by means of a photographic sequence, explaining each step. Dermoscopic features of scarring alopecia are described, these are useful to determine the appropriate biopsy site. The proper use of the punch to perform a scalp biopsy allows getting and adequate and sufficient sample to carry out a clinicopathologic correlation in alopecia patients.
Conclusion: scalp biopsy using a punch is a routine procedure performed by a dermatologist, very useful in the diagnosis of alopecia. Knowing and applying the correct surgical technique guarantees obtaining an optimal tissue sample for processing a histopathological study.


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