Evidence That Anterior Episcleral Nerve Sheath Tumors Arise From the Axenfeld Nerve Loop
نویسندگان
چکیده
منابع مشابه
Evidence that anterior episcleral nerve sheath tumors arise from the Axenfeld nerve loop.
Comment. Although perineurial cell proliferation may be suspected histologically with routine hematoxylineosin staining, a definite identification needs the demonstration of perineurial cell features using immunohistochemical studies. The morphologic criteria include spindle cells with curved or wavy thin nuclei and thin, elongated cytoplasmic processes, arranged in lamellae, and a storiform gr...
متن کاملVitreal seeding from uveal melanoma detected by high-resolution spectral-domain optical coherence tomography.
Comment. Episcleral neurofibromas and schwannomas likely arise from the long posterior ciliary nerves within the sclera. The ciliary nerves pierce the sclera near the optic nerve and pass anteriorly within the sclera and suprachoroidal space while branching to form a loose connection between the long and short posterior ciliary nerves, leading to 20 to 30 branches at the level of the ciliary bo...
متن کاملIntraosseous Nerve Sheath Tumors in the Jaws
Although the head and neck region is recognized as the most common location for peripheral nerve sheath tumors, central involvement, particularly in the jaw bones, is quite unusual. Neurofibroma is one of the most common nerve sheath tumors occurring in the soft tissue and generally appears in neurofibromatosis 1 (NF1 or von Recklinghausen's disease). Malignant peripheral nerve sheath tumors (M...
متن کاملCentral Mandibular Nerve Sheath Myxoma
Nerve sheath myxoma has been described as a rare neural tumor arising from Schwann cells. It is observed most frequently in the central area of the face, neck and upper extremities. In the past the term neurothekeoma was used as synonym for nerve sheath myxoma but according to new reports, they are separate entities which can be confirmed by immunohistochemistry as in our case. Oral involvement...
متن کاملMalignant Peripheral Nerve Sheath Tumors (MPNST)
INTRODUCTION Malignant peripheral nerve sheath tumors (MPNSTs) are sarcomas which originate from peripheral nerves or from cells associated with the nerve sheath, such as Schwann cells, perineural cells, or fibroblasts. Because MPNSTs can arise from multiple cell types, the overall appearance can vary greatly from one case to the next. This can make diagnosis and classification somewhat difficu...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Archives of Ophthalmology
سال: 2009
ISSN: 0003-9950
DOI: 10.1001/archophthalmol.2009.193