UNASSIGNED: Primary @entity5 of the lung are rare; among them, @entity189 ( @entity189 ) represent a minor histological subtype. The present case documents an @entity189 that occluded the B8 segment of the left lung in a 72-year-old @entity1 . Macroscopically, the @entity5 was well-demarcated; however, microscopic examination demonstrated that it had infiltrated the lung parenchyma. The majority of the @entity5 mass was composed of a myoepithelial overgrowth in conjunction with conventional bilayered ductal structures comprising epithelial and myoepithelial cells. At the advancing edge of the @entity5 , the myoepithelial overgrowth was observed to be gradually transitioning to a higher-grade component, which demonstrated @entity3 . The Ki-67 labeling index was reduced compared with @entity1893 ( @entity1893 ) of salivary gland @entity189 ; @entity876 was sparsely observed on immunostaining. However, @entity4910 , which is reported to be overexpressed in certain subtypes of @entity189 with @entity1893 , was overexpressed in the higher-grade component of the @entity5 , indicating a potential @entity1893 initiation. The surgical margin was @entity5 free, and no recurrence has been observed for 4 months. A thorough follow-up is required considering the @entity1893 -like changes and @entity3 of the @entity5 . Additional studies are required to elucidate the characteristics of @entity2 , with an emphasis on detecting @entity1893 or @entity1893 -like changes.

Primary @entity189 of the lung: A case report demonstrating XXXX -like changes.

@entity1 :: ('9606', 'Species') :: ['woman'] @entity5 :: ('MESH:D009369', 'Disease') :: ['tumor', 'salivary gland-type tumors'] @entity2 :: ('MESH:D008175', 'Disease') :: ['pulmonary EMC'] @entity189 :: ('MESH:D002277', 'Disease') :: ['salivary gland carcinomas', 'epithelial-myoepithelial carcinomas', 'EMC'] @entity4910 :: ('595', 'Gene') :: ['cyclin D1'] @entity876 :: ('7157', 'Gene') :: ['p53'] @entity3 :: ('MESH:D009362', 'Disease') :: ['venous invasion'] @entity1893 :: ('MESH:D008228', 'Disease') :: ['high-grade transformation', 'HGT']
@entity1893 :: (MESH:D008228,Disease) :: ['high-grade transformation']
