gram-negative_bacterial_infectious_disease sexually_transmitted_infectious_disease obsolete pulmonary syphilis true A tertiary syphilis that is caused by the spirochetal bacterium Treponema pallidum subspecies pallidum. It is a sexually transmitted disease although congenital syphilis can also occur. Treponema infection of the lung leads to a fibrous induration spreading from the roots of the lungs. Ulcerations occur in the superficial tissues, while in the deep tissues gummata are formed. Symptoms include dry cough, hemoptysis, hemorrhage, dyspnea, pain in the chest, loss of weight and slight fever. DOID:11097 Syphilis of lung (disorder) disease_ontology