Lungenrundherd
Pulmonary nodules are small, rounded opacities within the pulmonary interstitium. Pulmonary nodules are common and, as the spatial resolution of CT scanners has increased, detection of smaller and smaller nodules has occurred, which are more often an incidental finding.
Classification
Pulmonary nodules can be classified according to size, morphology and/or distribution.
Size
- miliary nodules: <2 mm
- pulmonary micronodule: 2-7 mm
- pulmonary nodule: 7-30 mm
- pulmonary mass: >30 mm
Morphology
- solid pulmonary nodules
- partly solid pulmonary nodules
- ground glass pulmonary nodules
Distribution
Radiographic features
They are generally homogeneous (without air bronchograms or alveolograms) and are well-defined since their margins are sharp and they are surrounded by normal aerated lung. They are quite separate from airspace nodules that often have an irregular margin and are usually ~8 mm in diameter. (For further discussion, see the article on nodular opacification.)
Differential diagnosis
The differential diagnosis for a nodule can be refined by its size, location, and density. Solitary pulmonary nodules and hyperdense pulmonary nodules are discussed further elsewhere.
A micronodular or miliary pattern is predominately seen in granulomatous processes, haematogenous pulmonary metastases, and pneumoconioses. Nodules and masses are most often seen in metastatic disease to the lung.
Always be aware of artifacts, especially on radiographs, where buttons or nipple shadows can often be mistaken for a true pulmonary nodule .
See also
Siehe auch:
- Bronchopneumogramm
- Milchglasherd
- solitärer pulmonaler Rundherd
- miliare Lungenherde
- pulmonary interstitium
- multiple kleine hyperdense Lungenherde
- zentrilobuläre Lungennoduli
- perifissural lung nodules
- perilymphatische Lungennoduli
- nodular opacification
- airspace nodules
- necrobiotic lung nodules
- Empfehlungen Fleischner Society Lungenrundherd
- pulmonale Raumforderung
- incidental lung nodules
- partly solid pulmonary nodules
- Stefan Diederich pulmonaler Rundherd
- gruppierte Lungenrundherde
- pulmonaler Rundherd AWMF Leitlinien
- Thorax Onlinekurs
- Brock model
und weiter:
- verkalkte Lungenherde
- Adenokarzinom der Lunge
- adult chest radiograph common exam pathology
- reticular and linear pulmonary opacification
- PFN Lunge
- part solid lung nodule
- pulmonary tumourlet
- nicht verkalkte hyperdense Lungenherde
- pulmonale Kryptokokkose
- Kavernöse Lungenläsionen
- subsolider Herd
- Lungenläsionen mit Fett
- Punkte in Lunge
- pulmonaler Rundherd Flussdiagramm
- antibody associated pulmonary noduls
- diffuse idiopathische pulmonale neuroendocrine Zellhyperplasie
- hyperdense pulmonale Raumforderungen