Preferred Label : nodule;
Definition : [PI-RADS}: A small lump, swelling or collection of tissue. [Fleischner Society]: The
chest radiographic appearance of a nodule is a rounded opacity, well or poorly defined,
measuring up to 3 cm in diameter. (a) Acinar nodules are round or ovoid poorly defined
pulmonary opacities approximately 5–8 mm in diameter, presumed to represent an anatomic
acinus rendered opaque by consolidation. This classification is used only in the presence
of numerous such opacities. (b) A pseudonodule mimics a pulmonary nodule; it represents,
for example, a rib fracture, a skin lesion, a device on the surface of the patient,
anatomic variants, or composite areas of increased opacity. [LI-RADS] Spherical or
oval mass.;
Source : Playbook, Fleischner Society, PI-RADS, LI-RADS 2020;
Origin ID : RID3875;
UMLS CUI : C0028259;
Automatic exact mappings (from CISMeF team)
- Currated CISMeF NLP mapping
- Nodule [MedDRA Preferred Term]
- False automatic mappings
- Member of
- Semantic type(s)
- UMLS correspondences (same concept)
- Nodule [MedDRA Preferred Term]
[PI-RADS}: A small lump, swelling or collection of tissue. [Fleischner Society]: The
chest radiographic appearance of a nodule is a rounded opacity, well or poorly defined,
measuring up to 3 cm in diameter. (a) Acinar nodules are round or ovoid poorly defined
pulmonary opacities approximately 5–8 mm in diameter, presumed to represent an anatomic
acinus rendered opaque by consolidation. This classification is used only in the presence
of numerous such opacities. (b) A pseudonodule mimics a pulmonary nodule; it represents,
for example, a rib fracture, a skin lesion, a device on the surface of the patient,
anatomic variants, or composite areas of increased opacity. [LI-RADS] Spherical or
oval mass.
