teratoma (terÂ´ÉtÅÂ´mÉ) , n a tumor composed of cells capable of differentiating into any of the three primary germ layers. Teratomas in the ovary are usually benign dermoidal cysts; those in the testis are generally malignant.
Necrotic pneumonia is typically due to a bacterial infection that begins to destroy the lung tissue. The most common type of bacteria that causes necrotic pneumonia is Streptococcus pneumoniae, though other species are increasingly being identified in sputum cultures of individuals with this serious form of pneumonia.iagnosis. You can typically diagnose necrotic pneumonia from an X-ray of the chest. A chest X-ray will show pockets or cavities of destroyed tissue, as well as a buildup of fluid in these areas of dead lung tissue. The lungs may also be surrounded by pus or pleural fluid due to the inflammation and tissue damage.
A lung infection is an inflammation in or around the lung tissues that is caused by a virus, fungi, or bacteria. There are a number of things that can trigger this sort of problem, but the four most common tend to be asthma, bronchitis, pneumonia, and tuberculosis.uberculosis. Tuberculosis is one of the most serious lung diseases a person can get. It is a serious pulmonary infection that is caused by mycobacterium tuberculosis. The lungs are usually the main organ affected, but the infection can and often does spread.