Brown-blue nevus of eye and cheek
Introduction
Introduction to the brown eyes of the eyelids The brown-blue scorpion of the eyelid was first reported by Dr. Ota in 1938, so it is also known as "Ota ", which is caused by genetic or some fetal causes of abnormal differentiation of melanocytes in the skin, causing facial trigeminal nerve (mainly the first 2 branches) distribution of skin, and often affect the pigmented lesions of the sclera and other tissues, clinically characterized by brown and blue patches or patches around the eyes and facial skin, so it is also called the eyelid brown cyan, eye dermal melanin In hyperplasia, the pigmentation does not subside on its own. Laser is a better method for treating Ota. basic knowledge The proportion of illness: 0.002% Susceptible people: no special people Mode of infection: non-infectious Complications: glaucoma, cataract, malignant melanoma, deafness
Cause
Causes of browning and blue eyelids in the eyelids
(1) Causes of the disease
Melanocytes or precursors are caused to stagnate locally during migration to the epidermis.
(two) pathogenesis
Melanocytes are generally located in the middle of the dermis, which may involve the upper or subcutaneous tissues of the dermis. The number of melanocytes is more, and there are more bulges in the lesions. The cell bodies are elongated and fusiform, scattered between the dermal collagen fibers, and a few lesions. In the melanocytes, the lesions affect the eyes. In addition to the skin tissue, other tissues include the deep periosteum, and melanocyte infiltration is also observed.
Prevention
Eyelid brown-blue sputum prevention
You can use Taohong Siwutang to add or subtract, or put a small hole in the egg, put 5g of wood scorpion seed powder, steamed and eat, one per day, and even served 30 to 60, can alleviate the symptoms.
Complication
Eyelid brown-blue sputum complications Complications glaucoma cataract malignant melanoma deafness
Each time due to fatigue, pregnancy, menstruation or lack of sleep is aggravated; a few cases can be combined with ipsilateral glaucoma, cataract, malignant melanoma, conductive deafness.
Symptom
Eyelid brown and blue sputum symptoms common symptoms pigmented spotted rash
Clinically, it usually manifests as periocular, sputum, sputum, cheek, forehead, nose and eyebrows. There are fashions including ear, ear, occiput, upper lip, lower collar, etc. The skin is light green, grayish blue, light brown, deep. Brown or blue-brown macules or patches, mottled, generally with a dark central color, a gradual gradation, or a patch at the center, a spot on the edge, or a densely spotted lesion. Clear, occasionally some areas of the lesion may be slightly elevated or miliary-to-mung bean-sized blue-black bumps, 44% to 74% of patients with lateral sclera involvement, brown-blue spots, conjunctiva, cornea, iris, retina, The optic nerve, extraocular muscles, post-ball fat, periosteum, etc. may also have hyperpigmentation. A small number of patients have hard palate, pharynx, nasal mucosa, buccal mucosa, and tympanic membrane.
Examine
Examination of brown and blue eyes in the eyelids
Histopathology:
1. Like Mongolian plaque, melanocytes are scattered between dermal collagen fibers, but their distribution is shallower than Mongolian plaque.
2. There are uplifted and infiltrated pigmented spots, which have a large number of melanocytes, which are blue-streaked.
3. There may also be significant cell infiltration in the deeper structures of the eye, including the periosteum of the eyelid.
Diagnosis
Diagnosis and differentiation of brown and blue eyes in the orbit
diagnosis
According to the color and distribution characteristics of pigment spots, Ota is generally not difficult to diagnose.
Differential diagnosis
1. Mongolian plaques are born at birth and can subside on their own within a few years.
2. Blue scorpion is a blue-gray or blue-black plaque, higher than the leather surface, with clear boundaries, more common in the trunk or limbs.
