Imaging characteristics of diffuse primary cutaneous B-cell lymphoma of the cranial vault with orbital and brain invasion.
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We herein present the imaging findings in a case of diffuse primary cutaneous B-cell lymphoma of the cranial vault with orbital and brain invasion. MR imaging revealed first concomitant orbital and parenchymal invasion in a case of primary diffuse non-Hodgkin lymphoma of the cranial vault. Contrast-enhanced MR imaging revealed a diffuse mass in the scalp of the frontoparietal region bilaterally and invasion of the right orbit and left frontoparietal lobe. Histologic and immunopathologic examinations revealed diffuse primary cutaneous B-cell lymphoma. (+info)
Primary biphasic synovial sarcoma of the orbit.
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Synovial sarcoma is one of the most common soft tissue malignancies of adolescents and young adults. Despite its name, it is no longer thought to be histogenetically derived from the synovium. What seems to be the first case of synovial sarcoma to arise in the orbit presented in a 21 year old woman as a slowly enlarging subconjunctival mass. Although this tumour was typically biphasic, the monophasic spindle cell variant arising at this site could easily be confused with less aggressive orbital connective tissue neoplasms. (+info)
Angiomatoid malignant fibrous histiocytoma of the eyelid.
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A 20 year old female had an angiomatoid malignant fibrous histiocytoma of her left upper eyelid extending into the orbit, frontal and temporal regions. The tumor was excised and radiotherapy was given. Nine months follow-up did not reveal any recurrence. (+info)
Orbit deformities in craniofacial neurofibromatosis type 1.
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BACKGROUND AND PURPOSE: The possible relationship of orbit deformities in neurofibromatosis type 1 (NF1) to plexiform neurofibromas (PNFs) have not been fully elucidated. Our purpose was to review orbital changes in patients with craniofacial NF1. METHODS: We retrospectively reviewed CT and MR imaging abnormalities of the orbit in 31 patients (18 male, 13 female; mean age, 14 years; age range 1-40 years) with craniofacial NF1. RESULTS: Orbital abnormalities were documented in 24 patients. Six had optic nerve gliomas with enlarged optic canals. Twenty had PNFs in the orbit or contiguous to the anterior skull. The posterior orbit was distorted by encroachment from an expanded middle cranial fossa in 13 patients, and 18 had enlargement of the orbital rim. Other changes included focal decalcification or remodeling of orbital walls adjacent to PNFs in 18 patients and enlargement of cranial foramina resulting from tumor infiltration of sensory nerves in 16. These orbital deformities were sometimes progressive and always associated with orbital infiltration by PNFs. CONCLUSION: In our patients with craniofacial neurofibromatosis, bony orbital deformity occurred frequently and always with an optic nerve glioma or orbital PNF. PNFs were associated with orbital-bone changes in four patterns: expansion of the middle cranial fossa into the posterior orbit, enlargement of the orbital rim, bone erosion and decalcification by contiguous tumor, and enlargement of the cranial foramina. Orbital changes support the concept of secondary dysplasia, in which interaction of PNFs with the developing skull is a major component of the multifaceted craniofacial changes possible with NF1. (+info)
Phakomatous choristoma of the orbit: a case report.
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We report the case of a 3-month-old infant with a rare phakomatous choristoma of the orbit. This lesion is believed to be a congenital neoplasm of lenticular anlage. The clinical, radiological, and histopathological findings are presented. (+info)
THE ROLE OF RADIOTHERAPY IN THE TREATMENT OF TUMOURS IN CHILDREN.
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Radiotherapy has an established place in the treatment of some tumours in children, both for cure and palliation. An evaluation of this form of treatment is made, based on experience with the children admitted to the Christie Hospital and Holt Radium Institute during the past 30 years. (+info)
Bilateral multiple cavernous haemangiomas of the orbit.
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Orbital cavernous haemangioma, a common orbital tumour, is usually single and unilateral. We report the first case of histologically confirmed bilateral multiple cavernous haemangiomas of the orbit. (+info)
Dermal cylindroma presenting as mass lesion in superomedial orbit.
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A superomedial orbital dermal cylindroma in an adult female is described. (+info)