Pilomatrixomas: 31 years of experience in population under and over 18 years of age.

BACKGROUND: Pilomatrixoma, also known as calcifying epithelioma of Malherbe, is a benign cutaneous neoplasm that demonstrates differentiation towards the matrix portion of hair follicles. It is the most common benign cutaneous neoplasm in childhood and youth, although it can occur at any age. With a general incidence ranging from 0.001% to 0.0031% of all cutaneous tumors. There is a slight predilection for females, with a female-to-male ratio of 1.15:1. METHODS: Observational, descriptive, retrospective, and cross-sectional study conducted using the electronic database of the dermatopathology department of Dr. Manuel Gea González General Hospital, from January 1992 to July 2023. Only cases with a histopathological diagnosis of pilomatrixoma, pilomatricoma, and Malherbe's calcifying epithelioma were included. RESULTS: A total of 200 pilomatrixomas were recorded in 177 patients. The tumor predominantly affected females in the pediatric age group, with an average age of 22.98 years in the studied population. The most common location was the head (periorbital region), followed by the upper extremities and trunk. Upon separating the population into pediatric and adult groups, 111 and 89 cases were identified, respectively. CONCLUSIONS: We present a detailed study on pilomatrixomas with a comprehensive overview of the demographic, clinical, and epidemiological characteristics of this benign cutaneous neoplasm. The results revealed robust statistical data highlighting the distribution by age, gender, topography, morphology, accompanying symptoms, and frequency of clinical differential diagnoses. This study significantly contributes to the existing knowledge of pilomatrixomas and serves as a valuable reference for future research and clinical practice.

INTRODUCCIÓN: El pilomatrixoma o epitelioma calcificado de Malherbe es una neoplasia cutánea benigna que muestra diferenciación hacia la porción de la matriz de los folículos pilosos. Es la neoplasia cutánea benigna más frecuente en la infancia y la juventud, aunque puede ocurrir a cualquier edad. Tiene una incidencia general que oscila entre el 0.001% y el 0.0031% de todos los tumores cutáneos. Se reporta una ligera predilección por el sexo femenino, con una relación mujer: hombre de 1.15:1. MÉTODOS: Estudio observacional, descriptivo, retrospectivo y transversal en el que se utilizó la base de datos electrónica del departamento de dermatopatología del Hospital General Dr. Manuel Gea González, entre enero de 1992 y julio de 2023. Para la búsqueda de los casos solo se incluyeron aquellos con diagnóstico histopatológico de pilomatrixoma, pilomatricoma o epitelioma calcificado de Malherbe. RESULTADOS: Se registraron 200 pilomatrixomas en 177 pacientes. El tumor predominó en mujeres de edad pediátrica; el promedio de edad de la población estudiada fue 22.98 años. La topografía más frecuente fue la cabeza (región periorbitaria), seguida de las extremidades superiores y el tronco. Al separar la población en pediátricos y adultos, se encontraron 111 y 89 casos, respectivamente. CONCLUSIONES: Presentamos un estudio detallado sobre pilomatrixomas con una visión exhaustiva de las características demográficas, clínicas y epidemiológicas de esta neoplasia cutánea benigna. Los resultados revelaron datos estadísticos sólidos, destacando la distribución por edades, sexo, topografía, morfología, síntomas acompañantes y frecuencia de diagnósticos diferenciales clínicos. Este estudio contribuye significativamente al conocimiento existente sobre los pilomatrixomas y sirve como una referencia valiosa para futuras investigaciones y para la práctica clínica.

Understanding Kerion Celsi in Children: Diagnosis and Therapeutic Guidelines Through an Algorithm.

Kerion celsi (KC), known as scalp ringworm, is the most common dermatophytosis in children. In Mexico, it ranks fourth among dermatophytoses, with a frequency of 4%-10%. KC is the inflammatory variety of tinea capitis (TC), with the most common causative agents being Microsporum canis and Trichophyton mentagrophytes. We present the clinical case of a six-year-old male diagnosed with KC. Direct examination stained with chlorazol black and cultures were performed, yielding negative results. Histopathological study revealed spores and short hyphae within and surrounding the hair shaft. Treatment with itraconazole was initiated based on suspicion of Microsporum spp. from the trichoscopy findings. We propose a diagnostic and therapeutic algorithm for kerion celsi.

Carotid intima-media thickness in patients with psoriasis with and without metabolic syndrome.

INTRODUCTION: Patients with psoriasis have an increased prevalence of cardiovascular risk factors as well as cardiovascular disease. OBJECTIVE: To determine if patients with psoriasis and metabolic syndrome (MS) have a higher frequency of subclinical atherosclerosis compared with those with psoriasis without MS. MATERIALS AND METHODS: A cross-sectional study was conducted in patients with psoriasis; MS was defined according to ATP III criteria. Demographic, clinical, and anthropometric data were obtained. Blood chemistry, high sensitive C-reactive protein (hs-CRP), and insulin were measure. Subclinical atherosclerosis was defined as high carotid intima-media thickness (CIMT) by Mode B ultrasound. RESULTS: 92 patients with psoriasis were included, 67 (72.8%) with MS and 25 (27.2%) without MS. Subjects with psoriasis and MS had significantly higher weight, body mass index, waist circumference, systolic blood pressure, glucose, insulin, triglycerides, insulin resistance, hs-CRP, and lower level of high-density lipoprotein cholesterol, compared with subjects without MS. High CIMT was greater in patients with psoriasis and MS than in those without MS. Age and MS were independent predictors of increased CIMT after multiple linear regression analysis. CONCLUSIONS: MS is associated with greater inflammation and subclinical atherosclerosis in patients with psoriasis.

Carotid intima-media thickness in patients with psoriasis with and without metabolic syndrome / Grosor de intima-media carotídea en pacientes con psoriasis con y sin síndrome metabólico

Abstract Introduction: Patients with psoriasis have an increased prevalence of cardiovascular risk factors as well as cardiovascular disease. Objective: To determine if patients with psoriasis and metabolic syndrome (MS) have a higher frequency of subclinical atherosclerosis compared with those with psoriasis without MS. Materials and Methods: A cross-sectional study was conducted in patients with psoriasis; MS was defined according to ATP III criteria. Demographic, clinical, and anthropometric data were obtained. Blood chemistry, high sensitive C-reactive protein (hs-CRP), and insulin were measure. Subclinical atherosclerosis was defined as high carotid intima-media thickness (CIMT) by Mode B ultrasound. Results: 92 patients with psoriasis were included, 67 (72.8%) with MS and 25 (27.2%) without MS. Subjects with psoriasis and MS had significantly higher weight, body mass index, waist circumference, systolic blood pressure, glucose, insulin, triglycerides, insulin resistance, hs-CRP, and lower level of high-density lipoprotein cholesterol, compared with subjects without MS. High CIMT was greater in patients with psoriasis and MS than in those without MS. Age and MS were independent predictors of increased CIMT after multiple linear regression analysis. Conclusions: MS is associated with greater inflammation and subclinical atherosclerosis in patients with psoriasis.

Resumen Introducción: Los pacientes con psoriasis tienen prevalencia incrementada de factores de riesgo y enfermedad cardiovascular. Objetivo: Determinar si los pacientes con psoriasis y síndrome metabólico (SM) tienen mayor frecuencia de ateroesclerosis subclínica comparados con pacientes con psoriasis y sin SM. Material y Métodos: Estudio transversal, en pacientes con psoriasis; SM fue definido con base en criterios ATP III. Se obtuvieron datos demográficos, clínicos y antropométricos. Se realizó química sanguínea, proteína C reactiva de alta sensibilidad (PCR-hs) e insulina. Ateroesclerosis subclínica fue definida como grosor de íntima-media carotídeo (GIMC) elevado, medido por ultrasonido tipo B. Resultados: Se incluyeron 92 pacientes con psoriasis, 67 (72.8 %) con SM y 25 (27.2 %) sin SM. Los sujetos con psoriasis y SM tuvieron valores significativamente más elevados de peso, índice de masa corporal, circunferencia de cintura, tensión arterial sistólica, glucosa, insulina, triglicéridos, resistencia a insulina, PCR-hs y menores niveles de colesterol de alta densidad, comparados con sujetos sin SM. El GIMC fue mayor en pacientes con psoriasis y SM. La edad y el SM fueron predictores independientes de mayor GIMC después de realizar múltiples análisis de regresión lineal. Conclusiones: Síndrome metabólico está asociado con mayor inflamación y ateroesclerosis subclínica en pacientes con psoriasis.