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The typical disease course displays progressive dyspnea on exertion, spaced by recurrent pneumothoraces and in some patients, chylous pleural effusions or ascites. [16] Most people have dyspnea on exertion with daily activities by 10 years after symptom onset. Many patients require supplemental oxygen over that interval.
LEMS is often associated with lung cancer (50–70%), specifically small-cell carcinoma, [4] making LEMS a paraneoplastic syndrome. [5] Of the people with small-cell lung cancer, 1–3% have LEMS. [3] In most of these cases, LEMS is the first symptom of the lung cancer, and it is otherwise asymptomatic. [3]
Paraneoplastic syndromes are typical among middle-aged to older people, and they most commonly occur with cancers of the lung, breast, ovaries or lymphatic system (a lymphoma). [4] Sometimes, the symptoms of paraneoplastic syndromes show before the diagnosis of a malignancy , which has been hypothesized to relate to the disease pathogenesis.
In organic chemistry, a hemiacetal is a functional group the general formula R 1 R 2 C(OH)OR, where R 1, R 2 is a hydrogen atom or an organic substituent. They generally result from the nucleophilic addition of an alcohol (a compound with at least one hydroxy group ) to an aldehyde ( R−CH=O ) or a ketone ( R 2 C=O ) under acidic conditions.
End stage pulmonary disease (ESPD) [2] is the result of chronic progressive lung diseases like COPD, [3] idiopathic pulmonary fibrosis, or systemic progressive diseases that affect the lungs such as cystic fibrosis or granulomatosis with polyangiitis. It is defined as when the lungs can no longer or barely remove enough carbon dioxide or supply ...
Diagnosis requires ruling out other potential causes. [3] It may be supported by a high resolution CT scan or lung biopsy which show usual interstitial pneumonia. [3] It is a type of interstitial lung disease. [3] People often benefit from pulmonary rehabilitation and supplemental oxygen. [1]
The commonest abnormality on lung function testing is a decrease in gas transfer. [2] Both obstructive and restrictive patterns on spirometry have been reported. [2] The differential diagnosis includes infection, other interstitial lung diseases and malignant disease including lymphoma.
Small-cell lung carcinoma (SCLC) has long been divided into two clinicopathological stages, termed limited stage (LS) and extensive stage (ES). [8] The stage is generally determined by the presence or absence of metastases, whether or not the tumor appears limited to the thorax, and whether or not the entire tumor burden within the chest can feasibly be encompassed within a single radiotherapy ...