Birth defects such as a lung cyst or other lung malformation. These are some of the more common types of benign lung tumors: 1  Hamartomas are the most common type of benign lung tumor and the third most common cause of solitary pulmonary nodules.irth defects such as a lung cyst or other lung malformation. These are some of the more common types of benign lung tumors: 1  Hamartomas are the most common type of benign lung tumor and the third most common cause of solitary pulmonary nodules.
Leyden Township is located just northwest of the city of Chicago, an edge of which lies within the township but as a separate entity. According to the United States Census Bureau, the township covers an area of 19.84 square miles (51.4 km 2).eyden Township is located just northwest of the city of Chicago, an edge of which lies within the township but as a separate entity. According to the United States Census Bureau, the township covers an area of 19.84 square miles (51.4 km 2).
Malden was platted in 1877 by a railroad official. Some say the community has the name of Colonel T. H. Mauldin, a county judge, while others believe the name is a transfer from Malden, Massachusetts. A post office called Malden has been in operation since 1877. Geography