2025年3月19日 · Solitary pulmonary nodule (SPN) is defined as a relatively well-defined round or oval pulmonary parenchymal lesion equal to or smaller than 30 mm in diameter. It is surrounded by pulmonary parenchyma and/or visceral pleura and is not associated with lymphadenopathy, atelectasis, or pneumonia 9.

2024年8月12日 · A solitary pulmonary nodule (SPN) is a single lung opacity smaller than 3 cm, is usually discrete, and does not attach to the lung border or pleura; associated lymphadenopathy is characteristically absent.

The solitary pulmonary nodule (SPN) is frequently seen on chest radiographs and computed tomography (CT). The finding of a SPN usually provokes a flurry of clinical and imaging activity as an SPN in at-risk population is an alert signal of possible lung cancer.

2020年8月1日 · Dynamic contrast-enhanced MRI has shown that malignant nodules show early peak enhancement and faster washout. The feeding vessel sign is frequently associated with metastatic nodules, however, it can also be seen commonly with septic emboli.

2016年8月6日 · Name the three most common causes of a solitary pulmonary nodule (SPN). 2. Name four important considerations in the evaluation of an SPN. 3. Define the terms pulmonary nodule and pulmonary mass. 4. Name six common causes of cavitary nodules. 5. Name four common causes of multiple pulmonary nodules. 6.

2019年3月21日 · All three guidelines provide an evidenced-based approach to incidentally detected SPN using patient and nodule risk factors in addition to nodule size to guide the clinician. SPN with clear benign features, including typical perifissural nodules, generally do …

2002年7月1日 · Despite significant advances in noninvasive imaging techniques, management of the solitary pulmonary nodule (SPN) remains a challenge for chest physicians. Patients with SPNs are frequently asymptomatic, and the physical examination is seldom revealing.

A solitary pulmonary nodule is defined as a discrete, well-marginated, rounded opacity less than or equal to 3 cm in diameter that is completely surrounded by lung parenchyma, does not touch the...

In this article we review the imaging features of benign and malignant round opacities; we demonstrate currently used standards and also more advanced techniques that are helpful in evaluating SPNs such as contrast-enhanced CT, PET/CT imaging and also pathologic sampling with biopsy or surgical resection.

Beware of calcified rib ends, skin tags, pleural plaques, boneislands, nipples, etc.!