External auditory canal exostoses
Introduction
Introduction to external epiphyseal bones The excessive hyperplasia of the external auditory canal bones forms exudosis of the external auditory canal. It is common in adult and young adults. It is common in males and is bilateral and multiple. The external epicardial epiphyseal callus is a nodular bulge formed by localized hyperplasia of the bone in the external auditory canal. The cause may be related to local trauma, inflammation and cold water stimulation. Pathological examination showed that osteophytes were rich in bone cells and stroma, but no fibrous sinus. The structure of the exoskeleton of the external auditory canal is loose or dense, without cartilage, and thus is different from osteoma. The reason is that the osteoma may have cartilage during the process of hyperosteogeny, while others think that the exostose is osteoma. Laser excision of the external ear canal excision is relatively thorough, and the damage to the surrounding and bone is small. It is mainly suitable for exogenous osteophytes, and the external auditory canal stenosis is obvious, causing hearing loss. The epiphyseal blockage of the external auditory canal caused repeated inflammation and accompanied by suppurative otitis media caused by pus drainage. basic knowledge The proportion of sickness: 0.01% - 0.03% Susceptible people: no special people Mode of infection: non-infectious Complications: osteochondroma
Cause
Causes of external epiphyseal osteophytes
Cause:
The exact cause is unknown. The general factor is that the cold swimmer is prone to this disease; the neurovascular disorder of the external auditory canal is supplied; the external ear canal is near the tympanic ring and the chronic inflammation is stimulated, resulting in fibrous tissue hyperplasia, gradually ossified into an exogenous Skeleton. Long-term stimulation of mechanical and chemical factors is also a causative factor.
Prevention
External ear canal exogenous osteophyte prevention
1. Pay attention to hygiene when you are not sick, especially children. Anyone with suppurative otitis media, ear edema, and infant eczema should pay special attention to local cleanliness and dryness, keep the ear and its surroundings clean, and be careful not to lick your ears.
2, after the disease, avoid washing. If it is contaminated or smear, it can be rubbed with vegetable oil. After it is loose, gently wipe it with gauze or sterilized soft paper. It is necessary to wash the person, using Kushen soup.
3, replace the external medication on time, and take the internal medicine on time.
4, when itching, avoid scratching, if necessary, soak some salt water, drip in the itching. Its concentration is based on the ability to achieve itching. If it is a child, it is necessary to prevent him from scratching.
5, during the illness, avoid alcohol, spicy food (such as green onions, garlic, leeks, peppers, pepper, mustard, snow red, ginger, curry), booty, freshwater products, seafood.
6, bathing, haircuts, bath body, pay attention to prevent sewage into the body, before washing your hair, swimming, you can use a special rubber stopper or clean cotton ball to block the external auditory canal.
7. Swimming is forbidden after illness.
8, avoid all seafood fresh hair, mustard, mustard, snow red and other food.
Complication
External ear canal exocrine osteophyte complications Complications osteochondroma
About 1% of single osteochondromas can be malignant, but 10 to 20% of patients with multiple osteochondromas become chondrosarcoma.
Multiple osteochondroma can interfere with normal long bone growth and development, so that the affected limb has short bending and deformity.
Symptom
External ear canal exogenous osteophytes symptoms common symptoms hearing loss earache tinnitus external ear canal pain
When the exoskeleton grows up, the external auditory canal can be narrowed, and the sputum can be detached or the epithelium can be detached, causing obstruction of the external auditory canal, causing ear occlusion and swell, hearing loss and tinnitus. Larger individual exostoses stimulate the skin of the external auditory canal and cause oppressive pain. Because it is easy to damage the skin of the exoskeleton when the ear is removed or removed, it is difficult to drain the water into the external auditory canal during bathing and swimming, so it is easy to cause eczema and inflammation of the external auditory canal, causing secretion overflow and severe earache.
Examine
Examination of external epiphyseal bones
(a) Ear examination:
1. Observe the auricle, ear canal, middle ear with or without deformity, cyst fistula, eczema, fungal disease; tympanic membrane integrity, and papilloma and other lesions.
2. Hearing test.
(B) nasal examination: observation of nasal vestibule, nasal septum, nasal cavity with cysts, deformities, polyps, papilloma or hemangioma, and with or without atrophy, hypertrophy, allergies, chronic rhinitis.
(3) Pharyngeal examination: observe pharyngeal keratosis; tonsil hypertrophy, inflammation; pharyngitis and other diseases or other pathological changes.
Diagnosis
Diagnosis and diagnosis of external epiphyseal bone
diagnosis
According to the symptoms and examinations, the diagnosis can be established. X-ray or CT examination can help to diagnose and understand the extent of the lesion.
Differential diagnosis
Identification of external ear canal osteoma and exostosis
Osteomass: usually an isolated pedicled mass that occurs in the scaly or bulging seam and grows from the surface of the external auditory canal. Benign and slow to grow, can block the external auditory canal. Small and multiple osteomas are also visible. Histologically, the surface is covered with a thick squamous epithelium and periosteum. There are a large number of loose fibrous vascular tubes surrounded by bone plates. Some of the tubes are irregular and contain a large amount of fibrous tissue and sinusoidal blood vessels. There are bones of different thickness and direction between the pipes. A small number of bone cells and cavities can be seen in the fractured section.
Exogenous osteophytes have a broad-based bone hypertrophic bulge in the external auditory canal, often multiple, bilaterally symmetric, and often invade the tympanic bone. Histopathologically, the surface is covered with squamous epithelium and periosteum of the external auditory canal. Its internal structure has a dense and parallel subperiosteal bone with a large number of bone cells and no fibrous vascular ducts.
There is a significant difference between the occurrence of osteoma and exogenous sinking. In the cause of the disease, the tympanum was violated. The occurrence of exostoses may be related to cold water swimming, while osteoma is not.
