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Revista Colombiana de Cirugía
versión impresa ISSN 2011-7582versión On-line ISSN 2619-6107
Resumen
LIMA-PEREZ, Miguel; MEJIA, Jaime y MATEUS, Gilbert. Histological characterization of cutaneous melanoma in pathology reports in the city of Cali, 2016-2021. rev. colomb. cir. [online]. 2024, vol.39, n.1, pp.64-69. Epub 20-Sep-2023. ISSN 2011-7582. https://doi.org/10.30944/20117582.2340.
Background.
Melanoma is the malignant proliferation of melanocytes associated with aggressive behavior. The objective of this study was to determine the histological variables of cutaneous melanoma.
Methods.
Observational, cross-sectional, descriptive, retrospective study carried out with reports of pathologies with a diagnosis of cutaneous melanoma in a pathology laboratory in Cali between 2016-2021. The variables were age, sex, location, subtype, Breslow thickness, ulceration, margins, mitosis, lymphovascular invasion, neurotropism, tumoral regression, Clark level and tumor infiltration by lymphocytes.
Results.
One hundred and six reports were obtained and 54 were excluded due to duplication. A descriptive analysis was made on the 52 records that were included, the mean age was 61 years, with a higher frequency in women with 55.8%. Of the 33 cases where the histological subtype was specified, the most frequent was superficial extension with 66.6%, followed by acral lentiginous with 18.1% and nodular with 15.2%. The most frequent location was in the extremities (61.5%); the most common Breslow was IV (34.6%), and the most frequent Clark was IV (34.6%). Ulceration was in 40.4%. The nodular subtype was the most aggressive presentation where 100% presented Breslow IV.
Conclusions.
The most common subtype of melanoma was that of superficial extension. In our population, the second most frequent was the acral lentiginous subtype, which was always located on the extremities. More than 50% of the melanomas had Breslow greater than or equal to III, which affects the prognosis.
Palabras clave : melanoma; pathology; histology; mitosis; neoplasm grading; neoplasm staging.