The radiological evaluation of pulmonary metastases from gastric carcinoma

Twenty cases of pulmonary metastases from pathologically proven stomach carcinoma were studies with specialreference to the clinico-radiological findings and the grades of cell-differentiation of stomach carcinoma. Theywere calssifed into five types based on the pattern of chest X-ray findings according to the reportedclassifications of metastatic pulmonary carcinoma. The radiological appearance of pulmoanry metastases formstomach carcinoma was didffferent from that of usual pulmonary metastatic cancers. The Type IV metastatic form(Type IV-Progressive increasing interstitial lung markings and then infiltration of pulmonary parenchyme with orwithout evidence of pleural effusion.) was most commonly seen in stomach carcinoma particularly in poorlydifferentiated cell type and more associates with respiratory symptoms than others.

An analysis of the pulmonary lobe using computed tomography

Computed Tomograms of 45 patients with or without lung mass were reviewed to determine the characteristics of the major and minor fissures. Also pulmonary vascular distibutions were analyzed to localize each pulmonary lobe. The results were as follows; 1. Each major fissure area was imaged frequently as lucent band, less frequently dense band. 2. The minor fissure areas were imaged as oval or triangular lucent zones. The oval or triangularlucent zones were as same frequency. 3. Avascular planes without above mentioned lucent zones were also correspond to minor fissure areas. 4. Slices of avascular zones were observated between pulmonary arteries to posterior segment or apicoposterior segment of upper lobe and to superior segement of lower lobe on both lungs.