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Objetivo. Definir los hallazgos radiológicos en tomografía computarizada (TC) de los tumores carcinoides bronquiales y determinar si estos hallazgos permiten clasificarlos en típicos o atípicos. Material y métodos. Se revisaron retrospectivamente los TC de tórax de pacientes con diagnóstico histológico de tumor carcinoide bronquial realizados en nuestro hospital entre el 1 de enero de 2001 y el 31 de diciembre de 2009. La muestra estaba formada por 52 pacientes (23 mujeres y 29 varones) con una edad media de 47 años (rango de edad11-77 años). Se catalogaron los 52 casos como típicos o atípicos en función del tamaño, localización, focalidad, tipo de crecimiento, calcificaciones, signos secundarios a obstrucción bronquial y presencia de adenopatías de tamaño significativo o de metástasis. Posteriormente se compararon los resultados con la anatomía patológica. Resultados. Los tumores carcinoides típicos fueron los más prevalentes (46 casos). Las variables asociadas a los atípicos fueron el sexo masculino, edad tardía de presentación y tamaño> 3 cm. Cuantas más variables atípicas reúnen los tumores carcinoides, mayor es la sensibilidad de la TC para diagnosticarlos correctamente. La ausencia de variables atípicas permite excluir el diagnóstico de tumor carcinoide atípico hasta en un 95% de los casos. Conclusión. La TC es una técnica que ayuda a definir y caracterizar radiológicamente los tumores carcinoides como típicos o atípicos, aunque por ahora no existe una fórmula precisa para diferenciarlos (AU)

Objective. To define the CT findings for bronchial carcinoid tumors and to determine whether these findings enable these tumors to be classified as typical or atypical. Material and methods. We reviewed the chest CT studies performed between 1 January 2001 and 31 December 2009 in patients at our hospital diagnosed with bronchial carcinoid tumors. The sample consisted of 52 patients (23 women and 29 men) with a mean age of 47 years (range 11-77 years). The 52 cases were classified as typical or atypical on the basis of the following radiological findings: size, location, focality, type of growth, calcifications, signs secondary to bronchial obstruction, and the presence of significant lymph node enlargement or metastases. These findings were then compared with the histological findings. Results. Typical carcinoid tumors were the most prevalent (46 cases). The variables associated with atypical tumors were: male sex, advanced age at onset, and size > 3 cm. The accuracy of CT in classifying atypical tumors correctly increased with the number of variables indicative of atypical carcinoid tumors. A negative result for atypical nature made it possible to rule out an atypical carcinoid tumor in 95% of the cases. Conclusion. CT is useful for defining and characterizing carcinoid tumors into typical or atypical, although a precise formula for differentiating between the two types remains to be defined (AU)

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Las enfermedades del tejido conectivo se asocian con frecuencia a un amplio número de patologías como las enfermedades intersticiales y de la vía aérea, las lesiones pleurales y la patología vascular, que presentan una alta morbilidad y mortalidad en estos pacientes. La tomografía computarizada de alta resolución tiene una alta sensibilidad en la detección de la enfermedad parenquimatosa y de la vía aérea, lo que permite diagnosticar la fibrosis establecida, o bien lesiones potencialmente reversibles, y facilita la correcta indicación del tratamiento en estos pacientes. En este artículo se hace una especial incidencia en las neumonías intersticiales asociadas a las enfermedades del tejido conectivo y en sus características diferenciales con respecto a las formas idiopáticas. También, se revisan las manifestaciones pulmonares más frecuentes en cada conectivopatía, con la intención de proporcionar al radiólogo un enfoque práctico en el diagnóstico y manejo de estas afecciones en la clínica diaria (AU)

Connective tissue diseases are often associated with lung diseases that lead to high morbidity and mortality, including interstitial disease, airway disease, pleural lesions, and vascular disease. High resolution CT has high sensitivity for detecting parenchymal disease and potentially reversible lesions, helping to guide treatment. This article emphasizes interstitial pneumonia in association with connective tissue disease and the characteristics that differentiate this entity from idiopathic types. Likewise, we review the most common pulmonary manifestations of each connective tissue disease with the aim of providing the radiologist with a practical approach to the diagnosis and management of these diseases in daily clinical practice (AU)

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Connective tissue diseases are often associated with lung diseases that lead to high morbidity and mortality, including interstitial disease, airway disease, pleural lesions, and vascular disease. High resolution CT has high sensitivity for detecting parenchymal disease and potentially reversible lesions, helping to guide treatment. This article emphasizes interstitial pneumonia in association with connective tissue disease and the characteristics that differentiate this entity from idiopathic types. Likewise, we review the most common pulmonary manifestations of each connective tissue disease with the aim of providing the radiologist with a practical approach to the diagnosis and management of these diseases in daily clinical practice.

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OBJECTIVE: To define the CT findings for bronchial carcinoid tumors and to determine whether these findings enable these tumors to be classified as typical or atypical. MATERIAL AND METHODS: We reviewed the chest CT studies performed between 1 January 2001 and 31 December 2009 in patients at our hospital diagnosed with bronchial carcinoid tumors. The sample consisted of 52 patients (23 women and 29 men) with a mean age of 47 years (range 11-77 years). The 52 cases were classified as typical or atypical on the basis of the following radiological findings: size, location, focality, type of growth, calcifications, signs secondary to bronchial obstruction, and the presence of significant lymph node enlargement or metastases. These findings were then compared with the histological findings. RESULTS: Typical carcinoid tumors were the most prevalent (46 cases). The variables associated with atypical tumors were: male sex, advanced age at onset, and size >3cm. The accuracy of CT in classifying atypical tumors correctly increased with the number of variables indicative of atypical carcinoid tumors. A negative result for atypical nature made it possible to rule out an atypical carcinoid tumor in 95% of the cases. CONCLUSION: CT is useful for defining and characterizing carcinoid tumors into typical or atypical, although a precise formula for differentiating between the two types remains to be defined.

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El tumor miofibroblástico inflamatorio es un tumor raro. Su localización más habitual es el pulmón. Se han descrito otras localizaciones extrapulmonares, siendo el mesenterio y el retroperitoneo las más frecuentes. Presentamos un caso de una niña de 8 años con un tumor miofibroblástico inflamatorio en una localización inusual. La paciente fue derivada a nuestro centro por sospecha de un proceso apendicular complicado. Se realizó una ecografía abdominal en la que se detectó una invaginación de íleon terminal, con una tumoración en su extremo distal. En la intervención urgente se confirmó una invaginación de íleon distal, secundaria a una tumoración intraluminal. El resultado anatomopatológico final fue de tumor miofibroblástico inflamatorio. El tumor miofibroblástico inflamatorio es un tumor mesenquimal raro, que afecta con mayor frecuencia a niños. Cuando se localiza en el abdomen, puede simular lesiones malignas, como linfoma, sarcoma o metástasis. Su etiología y pronóstico son inciertos (AU)

Inflammatory myofibroblastic tumor is a rare lesion that is usually located in the lung. The most commonly reported extrapulmonary locations are the mesentery and the retroperitoneum. We report the case of an 8-year-old girl with an inflammatory myofibroblastic tumor in an unusual location. The patient was referred to our center for suspected complicated appendicitis. Abdominal ultrasonography detected ileoileal intussusception with a mass in the distal portion. Emergency laparotomy confirmed ileoileal intussusception secondary to an intraluminal tumor. Histologic study revealed the mass was an inflammatory myofibroblastic tumor. Inflammatory myofibroblastic tumors are rare mesenchymal masses usually found in children. When located in the abdomen, they can mimic malignant lesions like lymphomas, sarcomas, or metastases. The cause and prognosis of inflammatory myofibroblastic tumors are unknown (AU)

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Inflammatory myofibroblastic tumor is a rare lesion that is usually located in the lung. The most commonly reported extrapulmonary locations are the mesentery and the retroperitoneum. We report the case of an 8-year-old girl with an inflammatory myofibroblastic tumor in an unusual location. The patient was referred to our center for suspected complicated appendicitis. Abdominal ultrasonography detected ileoileal intussusception with a mass in the distal portion. Emergency laparotomy confirmed ileoileal intussusception secondary to an intraluminal tumor. Histologic study revealed the mass was an inflammatory myofibroblastic tumor. Inflammatory myofibroblastic tumors are rare mesenchymal masses usually found in children. When located in the abdomen, they can mimic malignant lesions like lymphomas, sarcomas, or metastases. The cause and prognosis of inflammatory myofibroblastic tumors are unknown.

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