11% of primary lung cancers (cancers that start in the lung) have cavities that can be seen on chest X-ray; 22% of primary lung cancers will have cavities on CT, which is more sensitive. Squamous-cell carcinoma of the lung is more likely to develop cavitations than lung adenocarcinoma or large-cell lung carcinoma. Other primary cancers of the lung, such as lymphoma and Kaposi’s sarcoma, can also cavitate, especially in people with AIDS. Lung cancers that develop cavities are associated with a poor prognosis (worse outcomes). Cancers that metastasize (spread) to the lung can also develop cavitations, but this is only seen about 4% of the time on X-ray. Metastatic cancers of squamous cell origin are also more likely to cavitate than cancers of other origins. Both chemotherapy (drugs to treat cancer) and radiofrequency ablation (destroying cancer with radio waves) can cause lung cancers to develop cavities, which is a sign of a good response to treatment. It is possible to have both an infection and lung cancer in the same cavity; the most common combination is primary lung cancer and tuberculosis. Autoimmune
Autoimmune causes of lung cavities include granulomatosis with polyangiitis, rheumatoid arthritis, and rarely necrotizing sarcoidosis (less than 1% of people with sarcoidosis develop lung cavities). Ankylosing spondylitis, eosinophilic granulomatosis with polyangiitis, and systemic lupus erythematous rarely cause lung cavities.
Nervous may refer to:

nervousness
Nervous system, a network of cells in an animals body that coordinates movement and the senses
Nervous tissue, the cells of the nervous system that work in aggregate to transmit signals

Music
"Nervous" (Gene Summers song), 1958; covered by several performers
"Nervous" (Gavin James song), 2016
"Nervous" (Shawn Mendes song), 2018
"Nervous", a song by K.Flay from Solutions, 2019
"Nervous", a song by L Devine, 2018
"Nervous", a song by Nick Jonas from Spaceman, 2021
Nervous Records, a UK record label
Nervous Records (US), a US record label

See also
"Nervousness", a song by the Gigolo Aunts from Tales from the Vinegar Side
Nervous Norvus (1912–1968), the performing name of Jimmy Drake
Nervous shark, a species of requiem shark
All pages with titles beginning with Nervous