Results 171 to 180 of about 2,229 (203)
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Journal of Neurosurgery, 1998
A 38-year-old man presented with an intracranial extra-axial tumour at the base of the left posterior fossa which proved to be a meningeal melanocytoma. Meningeal melanocytoma is a rare, benign melanotic tumour of the leptomeninges occurring predominantly in the posterior fossa or the upper spinal cord in adults.
C U, Schindler +3 more
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A 38-year-old man presented with an intracranial extra-axial tumour at the base of the left posterior fossa which proved to be a meningeal melanocytoma. Meningeal melanocytoma is a rare, benign melanotic tumour of the leptomeninges occurring predominantly in the posterior fossa or the upper spinal cord in adults.
C U, Schindler +3 more
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Melanocytoma of the Ciliary Body
Archives of Ophthalmology, 1964Zimmerman 1 presented evidence of a locally invasive, nonmalignant, primary melanotic tumor of the optic disc which arose from normal uveal melanocytes. This tumor was benign, over half of the reported cases were in Negroes, and it offered an excellent prognosis.
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Pigmented epithelioid melanocytoma
International Journal of Dermatology, 2006A 16-year-old Hispanic male presented with a nontender purple nodule on the right shoulder that had been present for 1 year. There was no personal or family history of skin cancer. He had no significant past medical history. Physical examination revealed a 10 mm × 5 mm, firm, dark purple nodule on the right anterior shoulder (Fig. 1).
Jon R, Ward +3 more
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2016
This is a benign neoplasm composed predominantly of monotonous sheets of plump oncocytes. By electron microscopy, the cytoplasm of the oncocyte is packed full with mitochondria. Focal areas of the tumor contain spindle cells with abundant intracytoplasmic granular deposits of brown melanin pigment that contains melanosomes.
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This is a benign neoplasm composed predominantly of monotonous sheets of plump oncocytes. By electron microscopy, the cytoplasm of the oncocyte is packed full with mitochondria. Focal areas of the tumor contain spindle cells with abundant intracytoplasmic granular deposits of brown melanin pigment that contains melanosomes.
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2018
Introduction In cattle, melanomas are rare and constitutes 1 to 6% of all tumors. Melanomas are neoplastic processes usually observed in the skin. They may be congenital or acquired, in the latter case however in young animals. Darkly colored cattle may be at risk; neither cutaneous site nor gender predilection has been appare nt.
Afsah Hejri S. J. +4 more
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Introduction In cattle, melanomas are rare and constitutes 1 to 6% of all tumors. Melanomas are neoplastic processes usually observed in the skin. They may be congenital or acquired, in the latter case however in young animals. Darkly colored cattle may be at risk; neither cutaneous site nor gender predilection has been appare nt.
Afsah Hejri S. J. +4 more
openaire +1 more source
Melanocytoma of the Ciliary Body: Presentation of Four Cases and Review of Nineteen Reports
Survey of Ophthalmology, 1985Elias I Traboulsi +2 more
exaly