Preferred Label : cyst;
Definition : Any fluid-filled closed cavity or sac that is lined by an epithelium. Cysts can be
of normal, abnormal, non-neoplastic, or neoplastic tissues. [MeSH] Pathology.—A cyst
is any round circumscribed space that is surrounded by an epithelial or fibrous wall
of variable thickness (51). BI-RADS MRI: Circumscribed, round or oval fluid-filled
mass with an imperceptible wall, bright on T2-weighted images. Radiographs and CT
scans.—A cyst appears as a round parenchymal lucency or low-attenuating area with
a well-defined interface with normal lung. Cysts have variable wall thickness but
are usually thin-walled ( 2 mm) and occur without associated pulmonary emphysema (Fig
21). Cysts in the lung usually contain air but occasionally contain fluid or solid
material. The term is often used to describe enlarged thin-walled airspaces in patients
with lymphangioleiomyomatosis (52) or Langerhans cell histiocytosis (53); thicker-walled
honeycomb cysts are seen in patients with end-stage fibrosis (54). (See also bleb,
bulla, honeycombing, pneumatocele.) [Fleischner Society];
UMLS CUI (RADLEX) : C0010709;
Source : BI-RADS 5, MeSH, BI-RADS 4, LI-RADS, Playbook, Fleischner Society, PI-RADS;
Origin ID : RID3890;
UMLS CUI : C0010709;
Associated condition of
- Automatic exact mappings (from CISMeF team)
- Currated CISMeF NLP mapping
- Cyst [MedDRA Preferred Term]
- LOINC exact mapping
- Member of
- Semantic type(s)
- UMLS correspondences (same concept)
- Cyst [MedDRA Preferred Term]
Any fluid-filled closed cavity or sac that is lined by an epithelium. Cysts can be
of normal, abnormal, non-neoplastic, or neoplastic tissues. [MeSH] Pathology.—A cyst
is any round circumscribed space that is surrounded by an epithelial or fibrous wall
of variable thickness (51). BI-RADS MRI: Circumscribed, round or oval fluid-filled
mass with an imperceptible wall, bright on T2-weighted images. Radiographs and CT
scans.—A cyst appears as a round parenchymal lucency or low-attenuating area with
a well-defined interface with normal lung. Cysts have variable wall thickness but
are usually thin-walled ( 2 mm) and occur without associated pulmonary emphysema (Fig
21). Cysts in the lung usually contain air but occasionally contain fluid or solid
material. The term is often used to describe enlarged thin-walled airspaces in patients
with lymphangioleiomyomatosis (52) or Langerhans cell histiocytosis (53); thicker-walled
honeycomb cysts are seen in patients with end-stage fibrosis (54). (See also bleb,
bulla, honeycombing, pneumatocele.) [Fleischner Society]
