vulvar schwannoma
Introduction
Introduction to vulvar schwannoma Most of the vulvar schwannomas are considered to be tumors formed by the Schwann sheath of the peripheral nerves. They can be caused by trauma or other stimuli. They are often associated with neurofibroma, and schwannomas that occur in the vulva often It is round, slow to grow, and has the characteristics of paroxysmal pain. basic knowledge The proportion of illness: 0.0035% Susceptible people: women Mode of infection: non-infectious Complications: neurofibroma
Cause
The cause of vulvar schwannoma
(1) Causes of the disease
It is currently believed that vulvar schwannomas are schwann cells derived from ectoderm, which were previously thought to be derived from mesodermal sphincters.
(two) pathogenesis
Vulvar schwannomas are isolated benign tumors with long growth, mostly round, 4cm in diameter, and a few up to 10cm. Tumors can have intact encapsulation, white ligaments, common yellowish plaques, with a few The cystic cavity contains a light yellow liquid, and is also cystic, with abundant blood vessels on the surface of the tumor and a complete envelope.
Microscopically, there are many small blood vessels in the capsule. Some tumor cells are arranged disorderly. The connective tissue is finely meshed, and small cysts formed by tissue degeneration are visible. The cystic cavity is filled with liquid, and the other part of the tumor cells are densely packed and the length of the nerve is long. The shuttle is arranged in a fence-like arrangement, and at the same time as the non-nuclear region, another feature of the tumor is that there is a thick layer of collagen fiber sheath around many blood vessels.
Prevention
Vulvar schwannoma prevention
1, regular physical examination: to achieve early detection, early diagnosis, early treatment.
2, good follow-up: to prevent the disease from getting worse.
3, pay attention to personal hygiene, especially the health of the genitals during menstruation and puerperium.
Complication
Vulvar schwannoma complications Complications
Suffering from neurofibroma.
Symptom
Vulvar schwannoma symptoms Common symptoms Nodular vulvar tenderness vulvar pain
Vulvar schwannomas are common in the extremities and genitals. They usually appear as round subcutaneous nodules. They are single or multiple, and are soft and scattered in size. They usually have no symptoms, sometimes accompanied by pain and tenderness.
Examine
Examination of vulvar schwannomas
Immunohistochemical examination, tumor marker examination.
Histopathological examination.
Diagnosis
Diagnosis and differentiation of vulvar schwannomas
According to the characteristics of clinical paroxysmal pain and laboratory-related examinations, a preliminary diagnosis can be made, but it is still necessary to take a pathological examination of the living tissue for diagnosis.
Mainly distinguished from leiomyomas, the former refers to schwannomas often with wavy nucleus, cytoplasmic light staining, such as filamentous, the latter nuclear blunt, cytoplasmic red staining, immunohistochemical staining, the former S-100 and NSE Positive, the latter SMA positive.
