Pic. 1. Bioplasm NLS-graphy of lung. Blocked acute purulent abscess with homogeneous structure, represented by::

– isochromogenic content with close-bodied suspended matter;

– hyperchromogenic content with dense suspended matter, imitating peripheral cancer.

Pic. 2. Bioplasm NLS-graphy of lung. Acute purulent abscess intracavitary with metastases. Seminoma in form of oval chromogenic formations of constant shape.

A cavity had no visible wall and was limited by lung parenchyma itself, which, at preserved airiness, was located as a hypochromogenic strip of various width with uneven outer border; at loss of airiness – as a slightly chromogenic tissue around destruction nidus.

Burst of a purulent exudate into a bronchial tree meant beginning of open stage of an abscess with presence of one or several draining bronchi, through which air went to a cavity of destruction and liquid content was removed. This stage is characterized by strictly heterogeneous structure of a nidus due to appearance of multiple achromogenic signals against the background of hypechromogenic content.