THE THREE COMPONENTS OF A

SPECIFICLESIONS IN THE

PRIMARYTUBERCULOSIS COMPLEX (PTC):

1.Primary affect with perifocal infiltration.

2.Tuberculosis of the regional lymph node.

3.Binding zone of tuberculous lymphangitis

IN THE RADIOLOGICAL PICTURE OF

PTCTHERE ARE FOUR STAGES

(by K.V. Pomeltsov):

1.Pneumonic stage - when the shadow of the primary affect merges with the shadow of enlarged intrathoracic lymph nodes and еhe radiologic picture is similar to pneumonia.

2.Resorption or "bipolarity" phase - when the zone of perifocal nonspecific inflammation around tuberculous changes begins to dissolve and еhe shadow of the primary affect diminishes and moves away from theThe dilated root of the lung, causing the X-rays show the shadow of the pulmonary focus or focus,enlarged lymph nodes of the lung root or mediastinum and a connecting "track" between them.

3.Sealing phase - gradual reduction of the shadow of the of the primary affect and enlarged lymph nodes, the contour of the shadow becomes clearer.

4.The phase of the formation of the Gon foci (calcification,petrification) - when in the area of tuberculous calcium salts begin to deposit in the area of tuberculosis lesion.

PRIMARY

TUBERCULOSISCOMPLEX

PRIMARY TUBERCULOSIS COMPLEX,

STAGE 1 - PNEUMONIC STAGE

PRIMARY TUBERCULOSIS COMPLEX, STAGE 2 - DISSOLUTION STAGE

PRIMARY TUBERCULOSIS

COMPLEX,

STAGE 3 - COMPACTION STAGE

PRIMARY TUBERCULOSIS

COMPLEX,

STAGE 4 - CALCIFICATION STAGE

PETRIFICATION STAGE OF PTC WITHGONOSIS LOCLIZATION

DIFFERENTIALDIAGNOSIS OF THE PRIMARY TUBERCULOSIS COMPLEX:

1.Pneumonia.

2.Peripheral lung cancer.