mycosis of the external auditory canal
Introduction
Introduction to external ear canal mycosis Otorocosis externa is a conditional pathogenic fungus in which the fungus invades the external auditory canal or the external auditory canal. It is propagated under suitable conditions, causing subacute or chronic inflammatory lesions of the external auditory canal, often with bacterial infection. The fungal infection of the external auditory canal can sometimes be asymptomatic. The common symptoms include external ear canal discomfort, pain or itching, external ear canal obstruction, and hearing impairment. Secretion smear, fungal culture, can help determine the type of pathogenic bacteria, if necessary, need to do biopsy, help differential diagnosis and treatment. basic knowledge Sickness ratio: 0.05% Susceptible people: no special people Mode of infection: non-infectious Complications: otitis media
Cause
Causes of external ear canal mycosis
Cause:
Fungi are easy to grow and reproduce in warm and humid environment. When the external auditory canal enters water or actively stores secretions, it is often susceptible to fungal infections, such as penicillin, Aspergillus and Candida albicans.
Prevention
External ear canal mycosis prevention
(1) quit ear habits, especially do not use unclean things to dig ears.
(2) Keep the external auditory canal clean and dry.
(3) Active treatment of suppurative otitis media, effective use of various antibiotic ear drops.
Complication
External ear canal mycosis complications Complications otitis media
Easy to merge with other infections.
Symptom
Symptoms of external ear canal mycosis Common symptoms External ear canal ear purulent earache ear tingling tinnitus vertigo auricle enlargement bacterial infection low fever
The fungal infection of the external auditory canal is sometimes asymptomatic, and its common symptoms mainly include:
1. The external auditory canal is uncomfortable, painful or itchy.
2. Due to the large number of fungi, the accumulation of clumps can block the external auditory canal and cause a blockage.
3. The fungus mass is stimulated, and the external auditory canal has a small amount of secretion, and the patient feels that the external auditory canal is moist.
4. The external auditory canal is obstructed, the tympanic membrane is invaded, and the patient may have hearing impairment, tinnitus, and even dizziness.
5. If the lesion has a large or deep lesion, there may be local pain.
6. Some fungal-induced changes are mainly suppurative and granuloma. Serious can cause facial paralysis.
7. Fungi can cause necrotizing otitis externa.
8. Some fungal infections can cause low to moderate fever throughout the body.
Examine
Examination of external ear canal mycosis
The smear will be removed as a smear, and 1 to 2 drops of 10% sodium hydroxide (potassium) solution will be added. The hyphae and spores can be found under the microscope, and the culture can be examined.
Candida infection of the external auditory canal skin flushing, clear boundaries, surface white or creamy deposits. Aspergillus or yeast infection has hyphae in the external auditory canal. The color of the hyphae can be white, grayish yellow, gray or brown. At the beginning of the infection of the buds, the skin of the external auditory canal is scattered with papules or small pus, and then develops into a shallow, dark red edge with a shallow ulcer, granulation growth, and purulent secretion on the surface. Mucor is infected with ear pus, such as the appearance of facial paralysis visible facial paralysis.
Secret smears and fungal cultures can help determine the type of pathogens and, if necessary, biopsy, which is helpful for differential diagnosis and treatment.
Hearing tests can tell how much they affect hearing.
Diagnosis
Diagnosis and diagnosis of external ear canal mycosis
Identification with chronic external auditory canal, chronic external auditory canal only discomfort or itching, the ear canal skin congestion or thickening, covered with purulent but no mold growth, for bacterial culture or microscopic examination can be distinguished.
External auditory canal inflammation is acute or chronic inflammation of the skin of the external auditory canal; fungal infection is called fungal disease of the external auditory canal. Patients with otitis externa have a tingling of the ear, burning sensation, and pain in the ear of the temporomandibular joint movement. The secretion is initially thin serous. The secretions, after the gradient sticky tax, fungal sex, the outer ear canal has a blue smoke, black or yellow white mold, visible hyphae, and the skin is in contact with the skin.
