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2023, Number 2

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Dermatología Cosmética, Médica y Quirúrgica 2023; 21 (2)

Inflammatory infiltrate description of scalp blunt wounds: study in 32 biopsies

Paredes-López CI, Martínez-Hernández F, García-Dolores F, Rodríguez-Chavolla TM

Language: Spanish
References: 22
Page: 115-120
PDF size: 219.44 Kb.


ABSTRACT

Background: the macroscopic characteristics of a wound to determine its temporality are non-specific. Therefore, it is necessary to apply a more reliable method to determine the age of the wound in humans. In the forensic area, in Mexico there are none microscopic studies on the histological evaluation of wounds in humans.
Objective: to identify microscopic changes in histological sections of wounds produced by application of kinetic energy (contusion) in scalp, as well as its natural evolution in relation to time.
Material and methods: observational, descriptive, cross-sectional, and prospective study of subjects with blunt wounds located in the scalp that were collected in the period between December 2018 and May 2019, in a hospital in Mexico City and studied at the Institute of Forensic Sciences of Mexico City (Incifo).
Results: of 32 samples taken, 29 corresponded to males (90%) and the remaining three (10%) were females. The time between the injury and the biopsy (also called age of the lesion), was between 30 minutes to 24 hours, with an average of 207.51 ± 6.9/4 hours. The age ranged from 19 to 85 years. The contusion objects were diverse, being: the pavement, with 12 cases (40%), stones in five cases (16.6%), pistol butts with four cases (13.33%); wood bat and metal tubes in two cases (6.6%). In 30 biopsies, neutrophils were identified in the interstitial space, and two biopsies were ruled out as the individuals were taking hypoglycemic agents. 15 cases (50%) presented a mild inflammatory infiltrate (+), in eight cases (26.6%) moderate inflammatory infiltrate (++) was observed, and in seven cases (23.3%) severe inflammatory infiltrate (+++).
Conclusions: the severity of the infiltrate is affected by the biological variability and strength of the object with which the blunt wound occurred.


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