melanocytoma


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melanocytoma

[mə‚lan·ə‚sī′tō·mə]
(medicine)
A benign tumor composed principally of melanocytes.
References in periodicals archive ?
A general report of neoplasia in camels [9-12], cutaneous melanocytoma [8] and a basal cell carcinoma in a dromedary camel [2] have been previously published [11].
Possible diagnoses of a suspicious iris lesion other than iris melanoma include iris nevus, iris pigment epithelial cyst, iris stromal cyst, metastatic tumor of the iris, melanocytoma, iris atrophy and Cogan-Reese syndrome.
Although the dark pigmentation and nests and islands of polygonal cells prompted the differential diagnosis of a melanocytoma, the immunohistochemistry results lead to the final diagnosis of a moderately pigmented basal cell tumor.
For the period from 2013 to 2016 in the veterinary clinics, JSC "Talap" and PE "Vinnikova," 643 dogs with suspected melanoma and melanocytoma were examined.
Diffuse iris pigment dispersion and the dark pigmentation let us to be thought it could be a benign tumor, a necrotic melanocytoma or an adenoma of the pigment epithelium.
Their spectrum varies from benign to malignant and includes leptomeningeal melanocytosis, melanocytoma to its overtly malignant counterpart melanoma.
Bone and dura, right Favor malignant parietal region melanoma; melanocytoma should also be included in differential diagnosis.
Namkoong S, Kim JY, Gye J et al: Pigmented epithelioid melanocytoma developed in a patient with Becker nevus syndrome.
Some areas covered include acquired melanocytic nevi, congenital nevi and tumefactions, blue nevi and variants, combined nevi, pigmented epithelioid melanocytoma, tumorigenic melanomas of WHO classification categories, neutrotropic melanoma, metastastic melanoma, and nonmelanocytic melanoma simulants.
Differential diagnoses included a pigmented epithelioid melanocytoma, an agminated Spitz nevus, or a "low-grade" melanoma (Clark's level III, Breslow thickness 3.
14) These cells can be precursors to malignant melanoma, melanocytoma, pigmented schwannoma, and pigmented medulloblastoma.