One hundred and nine patients with squamous cell carcinoma of lung, including 67 cases had bronchoscopic biopsy sampling and 42 cases had surgical samplings, were studied and histologically classified according to WHO Classification - 1999. Results indicated that: (1) Male/ Female ratio were 4.17/1 to 6.44/1; (2) Four variants of squamous cell carcinoma were found; (3) Identification of exact those variants required larger samplings or surgical sampling from different sites of tumors; (4) Histological criteria for every variants were presented and discussed.
Bronchial Neoplasms ; Neoplasms ; Squamous Cell

50 cases of lung cancer including 14 squamous carcinomas, 18 adenocarcinomas, 8 large cell carcinomas, 8 small cell carcinomas and 2 adeno-squamous carcinomas were diagnosed cytologically and confirmed by histological conformation. Criteria of cytologic diagnosis were presented and discussed
Lung Neoplasms ; Carcinoma ; cytology

As part of our continued study on the chemical constituents of Willughbeia edulis stems, a new dimeric lignan named edulignan (1) was isolated from its EtOAc-soluble extract. Based on NMR spectroscopic interpretation, the planar structure of 1 has been suggested to have two 2-substituted 4-chromanone subunits with different stereochemical configurations. In addition, the MS/MS analysis of the products obtained by acidcatalyzed hydrolysis of 1 was supportive of its structure. Unfornatually, the new compound 1 did not show α-glucosidase inhibitory activity with an IC 50 value > 250 μM.