Solitary cavities of the lung: diagnostic implications of cavity wall thickness.
Sixty-five solitary cavities of the lung were evaluated for wall thickness. All lesions in which the thickest part of the cavity wall was 1 mm were benign. Of the lesions whose thickest measurement was 4 mm or less, 92% were benign. Of cavities that were 5-15 mm in their thickest part, 51% were benign and 49% malignant. Of those over 15 mm thick, 95% were malignant. Measurement of the thickest part of te cavity wall gives a more reliable indication of benignancy or malignancy than measurement of the thinnest part.
D000886:Anthropometry / Q000379:methods; D002277:Carcinoma / Q000000981:diagnostic imaging*; D002294:Carcinoma, Squamous Cell / Q000000981:diagnostic imaging; D003937:Diagnosis, Differential; D006801:Humans; D008168:Lung / Q000000981:diagnostic imaging / Q000473:pathology; D008169:Lung Abscess / Q000000981:diagnostic imaging*; D008175:Lung Neoplasms / Q000000981:diagnostic imaging*; D011859:Radiography; D013203:Staphylococcal Infections / Q000000981:diagnostic imaging; D014397:Tuberculosis, Pulmonary / Q000000981:diagnostic imaging*