The role of contrast enhanced computed tomography in the diagnosis of low density pulmonary nodules
Yonsei Medical Journal
;
: 175-186, 1995.
Artículo
en Inglés
| WPRIM
| ID: wpr-122034
ABSTRACT
Contrast enhanced CT manifestations of 141 pulmonary nodules having internal density less than 40 HU were evaluated to study the prevalence of causative disease and their differential points. Tuberculosis (n = 79) was most common, active in 96%. There were 22 cancers, 10 abscesses, 9 paragonimiases, 8 cysts, 7 metastases, 4 aspergillomas without air meniscus sign, and so on. 35% of the benign lesions were greater than 3 cm in diameter and 67% of benign lesions did not show a smooth outer margin. Lung cysts and aspergillomas showed relatively thin peripheral enhanced rim (PER), sharp transitional zone (TZ), a smooth inner border (IB), and homogeneous low densities (LD). Tuberculous nodules tended to be smaller in size with thin PER and most had smooth IB and homogeneous LD. Paragonimiasis, abscess, and cancer tended to present with thick PER and lobulated IB. Lung abscess and paragonimiasis both showed homogeneous LD and narrow TZ. However, in paragonimiasis, multiple locules were seen. Lung cancer showed wider TZ and heterogeneous LD. The size and outer margin of pulmonary nodules as a diagnostic criteria is less useful in LD pulmonary nodule. Therefore, CT can be more useful in differentiating the benign from the malignant lesions by observing a more specific and characteristic pattern of peripheral enhanced rim, transitional zone, inner border, and homogeneity of low density area.
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Tuberculosis Pulmonar
/
Tomografía Computarizada por Rayos X
/
Distribución de Chi-Cuadrado
/
Análisis de Varianza
/
Medios de Contraste
/
Diagnóstico Diferencial
/
Enfermedades Pulmonares
/
Neoplasias Pulmonares
/
Persona de Mediana Edad
Tipo de estudio:
Estudio diagnóstico
Límite:
Adolescente
/
Adulto
/
Anciano
/
Femenino
/
Humanos
/
Masculino
Idioma:
Inglés
Revista:
Yonsei Medical Journal
Año:
1995
Tipo del documento:
Artículo
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