Tension pneumothorax is also called high-pressure pneumothorax. The rupture opening acts as a one-way valve. When inhaling, the thorax expands, the intrathoracic pressure decreases, air enters the pleural cavity, and the pressure in the pleural cavity increases during exhalation. High, compressing the valve to close it, causing more and more air in the pleural cavity, pressuring the lungs, and shifting the mediastinum to the healthy side, requiring emergency rescue. (In fact, it’s just a simple sentence, the gas can only go in but not out, haha)

Orange peel-like appearance: In breast cancer, the breast dermal lymphatic vessels are blocked by cancer cells, which blocks the return of lymph fluid, leading to dermal edema, and The skin at the skin attachments (such as hair follicles and sweat glands) cannot swell due to the traction of the attachments and is relatively sunken, similar to an orange peel-like appearance.

Tumor: The normal cells of the body mutate, proliferate and differentiate abnormally, and are not regulated by the body. It is a kind of autonomous excessive growth of new tissue, which is basically cell proliferation. The key is abnormal cell differentiation rate, which is characterized by uncontrollable, unrestricted and uncoordinated.