title: [Pulmonary metastases of malignant tumors of the oral and maxillofacial region. Analysis of 70 cases].
abstract: Records of 685 cases of malignant tumors in the oral and maxillofacial regions were collected. Pulmonary metastases occurred in 70 of these cases. The metastatic rate was 10.2%. Roentgenographic appearances of pulmonary metastases were divided into 3 types: (1) Multiple ball-like lesion (78%); (2) Single ball-like lesion (14%); (3) Irregular lesion (8%). When metastasis was single, diagnosis was made according to the location of the metastasis and comparison between and old recent roentgenograms. Pulmonary metastasis was more frequent in tumors of the submandibular gland (34.5%), the base of the tongue (33.3%), and the sublingual gland (27.3%). Adenoid cystic carcinoma (47.8%) and adenocarcinoma (26.5%) might readily develop pulmonary metastasis. Pulmonary metastasis was rare in squamous cell carcinoma (2.5%). The metastatic rates were 3.9%, 5.4%, 6.5%, and 7.1% in stage I, II, III and IV, respectively. The period between the occurrence of pulmonary metastasis and initial treatment was from 1 month to 8 years and 5 months, with a mean of 33.8 months. The period between the occurrence of pulmonary metastasis and death of the patient was from 1 month to 8 years and 8 months, with a mean of 21.4 months.
authors.forename: Y T
authors.initials: YT
authors.lastname: Wu
mesh_terms: D000230:Adenocarcinoma / Q000556:secondary*; D003528:Carcinoma, Adenoid Cystic / Q000556:secondary*; D002294:Carcinoma, Squamous Cell / Q000556:secondary; D006801:Humans; D008175:Lung Neoplasms / Q000556:secondary*; D009062:Mouth Neoplasms; D009367:Neoplasm Staging; D012468:Salivary Gland Neoplasms