Search PubMedSearch

PubMed · 9153708

Intralobar sequestration: radiologic-pathologic correlation.

Abstract

Intralobar sequestration accounts for 75% of pulmonary sequestrations. The lesion consists of lung tissue that lacks normal communication to the tracheobronchial tree, has systemic arterial supply, and shares the pleura of the parent lobe. The majority of intralobar sequestrations are probably acquired lesions. Patients usually present before the age of 20 years with recurrent infection. At pathologic examination, intralobar sequestration is characterized by inflammation and fibrosis. At radiologic examination, intralobar sequestration typically appears as a consolidation or mass, with or without cavitation, within a lower lobe. In many cases, cystic change may be present within the affected lobe. Identification of a systemic arterial supply supports the diagnosis. Patients are treated with surgical excision, and prognosis is favorable.

Explore related subjects

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

A A Frazier, M L Rosado de Christenson, J T Stocker, P A Templeton. Intralobar sequestration: radiologic-pathologic correlation.. https://doi.org/10.1148/radiographics.17.3.9153708

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related citations

Congenital chest lesions: diagnosis and characterization with prenatal MR imaging.

PURPOSE: To evaluate prenatal magnetic resonance (MR) imaging for diagnosis of fetal chest masses and to determine if MR imaging provides information in addition to that of ultrasonography (US). MATERIALS AND METHODS: Eighteen pregnant women were referred for MR imaging of possible fetal chest tumors seen at US (16 congenital cystic adenomatoid malformation [CCAM], two bronchopulmonary sequestration [BPS]). The presence, position, size, and characteristics of masses were determined and correlated with postnatal results. RESULTS: The MR imaging diagnoses were three cases of congenital diaphragmatic hernia, nine of CCAM, two of BPS, and one each of foregut cyst, lung atresia, tracheal atresia, and bronchial stenosis. MR imaging results were in agreement with US results in nine fetuses and in disagreement in nine. MR imaging diagnoses were confirmed at surgery or autopsy in 17 fetuses. MR imaging results led to an error in diagnosis in one fetus with BPS. CONCLUSION: Fetal chest masses had characteristic MR imaging appearances. MR imaging was accurate for distinguishing congenital diaphragmatic hernia from CCAM and was useful for less common diagnoses and determination of the origin of very large chest tumors. Prenatal diagnosis was changed in some patients owing to MR results and affected treatment and counseling of parents. MR imaging is a valuable adjunct to US for prenatal diagnosis of fetal chest masses.

Bronchopulmonary Sequestration

[A case of cystic adenomatoid lung malformation treated by thoracocentesis].

A case of Cystic Adenomatoid Lung Malformation (CALM) treated by serial thoracocenteses followed by implantation of the feto-amniotic shunt is presented. The idea was to prevent prolonged lung compression leading to lung growth retardation and maturation restriction. Postnatally the baby presented good respiratory condition. She underwent lung lobectomy in the 2nd day of life. The histological assessment confirmed the ultrasound diagnosis of CALM. The postoperative period was not complicated. The method of feto-amniotic shunting is presented as promising in the treatment of CALM prenatally.

Bronchopulmonary Sequestration

Spontaneous involution of pulmonary sequestration in children: a report of two cases and review of the literature.

BACKGROUND: Two cases of pulmonary sequestration which regressed spontaneously are presented. OBJECTIVE: To demonstrate the value of imaging studies in the diagnosis and follow-up of some forms of congenital masses of the lung in asymptomatic patients. MATERIAL AND METHODS: We reviewed the clinical records and imaging studies of two asymptomatic children, one newborn and the other 3 months old, with thoracic masses which demonstrated variable degrees of spontaneous involution. RESULTS: Abdominal ultrasound performed on the newborn with a palpable mass showed a triangular echogenic mass with a large central feeding vessel arising from the aorta. The mass had disappeared on follow-up US exam performed 6 years later. CT was performed in the 3-month-old patient with a persistent retrocardiac mass. A soft-tissue density mass in the left pulmonary base with a large feeding vessel arising from the aorta was visualised on contrast-enhanced CT. Five years later, a new CT scan showed significant shrinkage of the mass and no vessel. CONCLUSION: Radiological techniques such as real-time US with Doppler imaging and contrast-enhanced CT may establish the diagnosis of pulmonary sequestration by demonstrating the mass and its systemic vessel, thereby eliminating the need for more aggressive imaging procedures. Partial or total disappearance of these masses represents a further example of involutive pathology and suggests that not all cases of pulmonary sequestration should be surgically treated.

Bronchopulmonary Sequestration