Viral pharyngitis

Introduction to viral pharyngitis The acute pharyngeal infection caused by viral pharyngitis virus usually occurs in the pharynx, oral mucosa and surrounding skin, and can also occur in the cornea and external genitalia. The lesions are edema and swelling of epithelial cells, causing the epithelial layer of the epidermis to bulge, forming blisters, containing a large number of multinucleated white blood cells and serum, and there are eosinophilic inclusions in the nucleus. The vesicles quickly rupture, forming a shallow ulcer with a surface covered with inflammation. Sex cells, red blood cells or necrotic tissue. Should be differentiated from aphthous stomatitis, polymorphic exudative erythema, necrotizing stomatitis, and herpes zoster. For example, herpes zoster is an acute infectious skin disease caused by varicella-zoster virus. Chickenpox occurs after a child with no immunity to the virus is infected. Some patients become infected with a virus without symptoms. basic knowledge Sickness ratio: 0.0001% Susceptible people: no specific people Mode of infection: non-infectious Complications: aversion to cold

Cause of viral pharyngitis

Adenovirus (30%):

Adenoviruses are carcinogenic to rodents or can transform rodent cells cultured in vitro. Transforming cells requires only a portion of the adenoviral genome, which is located at the left end of the genome, accounting for approximately 7% to 10% of the entire genome. Although adenovirus is widely distributed, it does not cause carcinogenicity to the human body. Human cells are a type of permissive cells, that is, such cells allow infection-invading viruses to replicate and proliferate in cells, and finally cell lysis dies to release a large number of progeny viruses.

Coronavirus (30%):

A variant of the coronavirus is a pathogen that causes atypical pneumonia and belongs to the RNA virus. The coronavirus was first isolated from chicken in 1937. The virus particles are 60-200 nm in diameter and have an average diameter of 100 nm. They are spherical or elliptical and have pleomorphism. The virus has an envelope, and there are spines on the envelope. The whole virus is like a corona, and the spinous processes of different coronaviruses are significantly different.

Syncytial virus (30%):

The virus is a circular body under electron microscopy and has a diameter of about 180 m. When overworked, allergic quality, sudden temperature changes, body cold or some physical, chemical factors such as mercury, kun, sputum, iodine, etc., make the body Low resistance, susceptible to this disease, in addition, acute rhinitis, pneumonia, influenza, malaria, epidemic meningitis, etc. can be associated with toxic pharyngitis.

Viral pharyngitis prevention

In life and work, pay attention to rest, drink plenty of water, eat more fresh vegetables, fruits and nutritious and digestible foods to enhance the body's resistance.

Viral pharyngitis complications Complications, aversion to cold

Acute type is accompanied by chills, fever, and pharyngeal burning pain.

Viral pharyngitis symptoms common symptoms pharyngeal burning pain herpes pharyngeal mucosa diffuse congestion laryngeal itching pharyngitis, glossitis, phlegm, throat dryness, congestion, chills, lymphadenopathy

The lesion is epithelial cell edema, swelling, causing the epithelial layer of the epidermis to bulge, forming blisters, containing a lot of multinucleated white blood cells and serum, there is an eosinophilic inclusion in the nucleus, the blister is quickly ruptured, forming a shallow ulcer, the surface is covered with inflammation Sex cells, red blood cells or necrotic tissue.

[clinical manifestations]

Clinical can be divided into acute and chronic type 2, which is more common in acute type.

(1) Acute type

Acute onset, first in the pharynx and oral mucosa, tonsils and mouth angles, there are needle-sized herpes, round or oval, isolated or clustered together, quickly ruptured to form a shallow ulcer, the surface is covered with a pale yellow pseudomembrane, The surrounding mucosa is bright red, accompanied by chills, fever, pharyngeal burning pain, infants crying and restless, refused to eat, submandibular lymph nodes and tenderness.

(2) Chronic type

More common in adults, a few herpes on the pharynx and oral mucosa, covered with gray-white pseudomembrane after the ulceration, the surrounding mucous membrane is reddish, the more it continues, the long lasting, the throat and mouth slightly burning and pain, no obvious symptoms.

Examination of viral pharyngitis

Check the visible pharynx and oral mucosa, tonsil and mouth, etc., at the tip of the herpes, round or oval, isolated or clustered together, quickly rupture to form a shallow ulcer, the surface is covered with a pale yellow pseudomembrane, the surrounding mucous membrane is bright red color. The tonsils are located at the intersection of the digestive tract and the respiratory tract, where the mucosa contains a large amount of lymphoid tissue, which is the site of frequent contact with the antigen to cause a local immune response. Lymphoid tissue mass under the oropharynx epithelium. There are several groups of lymphoid tissues under the epithelium around the base of the tongue and the pharynx, which are called tonsils, pharyngeal tonsils and lingual tonsils according to their positions.

Diagnosis and diagnosis of viral pharyngitis

Should be differentiated from aphthous stomatitis, polymorphic exudative erythema, necrotizing stomatitis, and herpes zoster. For example, herpes zoster is an acute infectious skin disease caused by varicella-zoster virus. Chickenpox occurs after a child with no immunity to the virus is infected. Some patients become infected with a virus without symptoms.

The material in this site is intended to be of general informational use and is not intended to constitute medical advice, probable diagnosis, or recommended treatments.