RESUMO
Fundamento: La dermatoscopía se considera como un paso intermedio entre la clínica y la histopatología en el diagnóstico de Carcinoma basocelular, sin embargo se desconoce si es útil en manos de una persona que esté especializada en el dermatoscopio. Objetivo: Describir los criterios epidemiológicos, clínicos y dermatoscópicos de una serie de casos con diagnóstico clínico de carcinoma basocelular y evaluar la precisión dermatoscopía-histopatología. Metodología: Se realizó un estudio observacional descriptivo de corte transversal en 25 pacientes que acudieron a la consulta de Dermatología con diagnóstico clínico de carcinoma basocelular, con un total de 36 lesiones observadas a las que se le realizó la técnica de dermatoscopía. En todos los casos se tomó biopsia de la lesión y se realizó la correlación clínico-dermatoscópica e histopatológica. Resultados: Predominó el sexo masculino, los mayores de 71 años y el fototipo de piel II. Las lesiones se localizaron preferentemente en cabeza y cuello, prevaleciendo las de alto riesgo. La variedad clínica más frecuente fue el nodular y el de mayor confusión dermatoscópica fue el pigmentado. Las estructuras dermatoscópicas más representadas fueron los múltiples nidos ovoides, los vasos arborescentes, las hojas de arce y la ulceración. Existió una concordancia entre el diagnóstico dermatoscópico y el histológico. Conclusiones: La precisión diagnóstica dermatoscópica-histopatológica fue demostrada lo que refuerza su utilidad previa a la toma de decisiones.
Background: Dermoscopy is considered as an intermediate step between clinical and histopathology in the diagnosis of basal cell carcinoma, however it is unknown whether it is useful in the hands of a person who is specialized in the dermatoscope. Objective: To describe the epidemiological, clinical and dermatoscopic criteria of a series of cases with clinical diagnosis of basal cell carcinoma and evaluate the dermoscopy-histopathology accuracy. Methodology: A descriptive, observational, cross-sectional study was performed on 25 patients who attended the dermatology consultation with a clinical diagnosis of basal cell carcinoma, with a total of 36 lesions observed at which the technique of dermoscopy was undergone. In all cases a lesion biopsy was taken and the clinical and histopathologic correlation was performed. Results: There was a predominance of male gender, age 71 and skin phototype II. The lesions were preferentially located in the head and neck, prevailing high risk lesions. The most common clinical range was nodular and the highest dermoscopic confusion was pigmented. The most represented dermoscopic structures were multiple ovoid nests, arborescent vessels, maple leaves and ulceration. There was a correlation between dermoscopic and histological diagnosis.
Assuntos
Humanos , Ansiedade/diagnóstico , Diabetes Mellitus Tipo 2/diagnóstico , Depressão/diagnóstico por imagem , Estresse Psicológico/diagnósticoRESUMO
OBJECTIVE: We wanted to compare the two-dimensional (2D) fast spin echo (FSE) techniques and the three-dimensional (3D) fast field echo techniques for the evaluation of the chondromalacia patella using a microscopy coil. MATERIALS AND METHODS: Twenty five patients who underwent total knee arthroplasty were included in this study. Preoperative MRI evaluation of the patella was performed using a microscopy coil (47 mm). The proton density-weighted fast spin echo images (PD), the fat-suppressed PD images (FS-PD), the intermediate weighted-fat suppressed fast spin echo images (iw-FS-FSE), the 3D balanced-fast field echo images (B-FFE), the 3D water selective cartilage scan (WATS-c) and the 3D water selective fluid scan (WATS-f) were obtained on a 1.5T MRI scanner. The patellar cartilage was evaluated in nine areas: the superior, middle and the inferior portions that were subdivided into the medial, central and lateral facets in a total of 215 areas. Employing the Noyes grading system, the MRI grade 0-I, II and III lesions were compared using the gross and microscopic findings. The sensitivity, specificity and accuracy were evaluated for each sequence. The significance of the differences for the individual sequences was calculated using the McNemar test. RESULTS: The gross and microscopic findings demonstrated 167 grade 0-I lesions, 40 grade II lesions and eight grade III lesions. Iw-FS-FSE had the highest accuracy (sensitivity/specificity/accuracy = 88%/98%/96%), followed by FS-PD (78%/98%/93%, respectively), PD (76%/98%/93%, respectively), B-FFE (71%/100%/93%, respectively), WATS-c (67%/100%/92%, respectively) and WATS-f (58%/99%/89%, respectively). There were statistically significant differences for the iw-FS-FSE and WATS-f and for the PD-FS and WATS-f (p < 0.01). CONCLUSION: The iw-FS-FSE images obtained with a microscopy coil show best diagnostic performance among the 2D and 3D GRE images for evaluating the chondromalacia patella.