Dark filariasis is most common in people who work outdoors and are in constant contact with such decaying matter. It may present as shallow ulcers, petechiae, brownish-black spots, or warty growths, and may be characterized by a slight itch or mild swelling or pain, or may be asymptomatic. The subcutaneous tissue type of dark filariasis often has isolated, deep subcutaneous or muscular abscesses or cysts, and the lesions may be as large as an apricot kernel or several centimeters, or even a large plaque over the entire chest. Patients are most often seen in those who work outdoors and are in constant contact with such putrescences. They may appear as shallow ulcers, petechiae, brownish-black spots, or warty growths, and may be slightly itchy or mildly distended, or may be asymptomatic. Subcutaneous tissue-type dark filariasis often has isolated, deep subcutaneous or muscular abscesses or cysts, and the lesions may be as large as an apricot kernel or several centimeters, or even a large plaque over the entire chest. Systemic dark aspergillosis this type can be caused by the skin or subcutaneous tissue dark aspergillosis spread to the lymph nodes, lungs, brain and gallbladder, etc., can also have no skin lesions, the first that lymph node or blood dissemination. The diagnosis can be confirmed from both symptoms and instrumental examination. Other symptoms: 1, chest acne From the perspective of Chinese medicine theory, acne in different parts of the body is the external manifestation of the dysfunction of different internal organs. Chest acne is caused by endocrine disorders. There are many causes of chest acne, such as bra’s breathability is not high, sebum is too oily leading to pore clogging, and hormone secretion imbalance in the body and other loess factors, so that the female chest acne, pre-menstruation or menstruation intake of spicy, stimulating food too much, emotional irritability, easy to anger and so on, will lead to chest acne. 2, flail chest Severe closed chest injury leads to multiple rib fractures, so that the local chest wall loses the support of ribs and becomes soft, and abnormal breathing occurs, i.e., the chest wall of the softened area is inwardly sunken during inhalation and outwardly protrudes during exhalation, which is known as flail chest. Shackle chest is often associated with pulmonary contusion and is an important factor in the development of acute respiratory distress syndrome (ARDS). Round, solid or cystic mass in the lung: teratoma of lung is a rare benign tumor of the lung that originates in the lung without teratoma in the mediastinum. In recent years, several cases have been reported in China. Intrapulmonary teratoma may be the vagus embryonic tissue, along the bronchus downstream, for the lung embryonic base encapsulation formation of tumor. Intrapulmonary teratoma is located in the lung parenchyma, or in the bronchial lumen, and is mostly a round, substantial or cystic mass of varying sizes. The age of the patients is more than 30 years old, and the number of male and female cases is similar. There were no symptoms such as coughing up blood, fatigue, emaciation and chest pain. They are often seen for secondary infections. Pestle finger may be present.X-ray examination is mostly superficial for secondary lesions such as lung abscess, bronchiectasis, pulmonary atelectasis etc. Second, instrumental examination: 1, mycological examination Take all kinds of pus and tissue fluid at different damages, and treat them with 10% potassium hydroxide solution, and various different forms of brown and black-brown hyphae and yeast-like spores can be seen under the microscope, and thick-walled spores (walled bricks-like bodies) are not seen. Tissue and pus were taken for culture, and brown and black fluffy or yeast-like colonies could be grown. HE staining can be detected in the majority of separated, black-walled hyphae, 1.5-3?m in diameter, occasionally branchable or yeast-like germinating spores, hyphae surrounded by inflammatory cells or multinucleated giant cell infiltration, no thick-walled spores (mural bricoliths). Biopsy can be seen in the subcutaneous tissue with dilute pus, exudate in the cyst, if the cyst wall resection is incomplete, leaving a sinus tract. 2, chest X-ray Fluoroscopy is a direct examination of the patient placed between the X-ray tube and fluorescent screen. Can do a comprehensive dynamic direct observation, such as heart beat, septum activity, gastrointestinal peristalsis, joint activity. X-ray fluoroscopy can also be used in X-ray imaging for localization, gastrointestinal imaging, and instructions for diagnostic and therapeutic operations, such as cardiac catheterization, fracture repositioning, and foreign body removal, etc. X-ray fluoroscopy is most commonly used in the chest to examine the lungs, pleura, mediastinum, and cardiac and macrovascular pathologies. Can also be used for limb bone, soft tissue, body cavity foreign body and gas, stones, contraceptive rings and other checks. 3.CT examination of chest CT examination of chest is a method of chest examination through X-ray computerized tomography (CT).