Kulis symptom

For an article, it is better to use the following description:

**Kulis symptom** is an ambiguous radiological sign, which consists in the fact that changes localized in different anatomical zones at a certain depth from each other give **stepped overlap** between the corresponding zones (kulis). The Cullis symptom develops when, due to indirect projection of tissues, layers located at different levels or spaced from each other at a distance greater in diameter than the largest size of the shadow are superimposed on one another. If the layers are separated by a relatively small distance, techniques such as scanning can be used to create a more uniform shadow on the object.

In radiology diagnostics, the Kulis symptom (or simply the “kulis” symptom) can appear during radiography and computed tomography in several variants. Tumors of a malignant nature are capable of forming two or more foci of different origins and, located at different levels, exhibit a “stepped contour” effect. Also, double or multiple reflections are detected when examining the organs of the urinary system in case of urolithiasis (the “crystals at the corners of the scenes” method is used to identify the location of the stone in the kidney), as well as in pathology of the skeletal system: cysts, osteomalacia and tumor processes.

An x-ray showing Kulik's sign in a man indicates the presence of two areas of pathological tissue change in the abdominal cavity. This may be a manifestation of the inflammatory process

The backstage sign (also known as the "backstage sign" or "backstage pictures") is a radiological phenomenon on contrast-enhanced radiological images that occurs after contrast material is injected into the rectum to diagnose certain diseases. The outline of the image becomes jagged as the contrast agent passes through various anatomical structures, giving the appearance that the image is divided into two elements: superior and inferior.

The first to describe Kulis's sign was physician J. Malloch Cooley of Boston in 1946. In his work, he reported the use of this phenomenon for the diagnosis of colon cancer. Cooley reported that in colon cancer, there is a folded "symptomatic fold" on the radiograph and that

Article about the Kulis symptom.

Kulis's symptom

*Backstage symptom* is an X-ray phenomenon caused by partial overlapping of images of pathological formations located at different depths, resulting in the contours of the resulting image taking on a stepped appearance, reminiscent of a theater backstage.*

Kulis syndrome was first described in 1994. There are 3 variants of Kulis syndrome - **active**, **partial** and **complete** Kulis syndrome, differentiated by the age characteristics of the patients. Elimination of Koulies syndrome depends entirely on reducing