Melanotic Meningioma

Abbott, Michael M.; Killeffer, Fred A.; Crandall, Paul H.

doi:10.3171/jns.1968.29.3.0283

Cited by 40 publications

(7 citation statements)

References 9 publications

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“…Melanotic ependymomas are uncommon tumours with small cells in sheets, typical rosettes and perivascular pseudorosettes, along with melanin pigment. 17 The present case showed a focus with psammoma bodies. 13 Histopathology of meningeal melanocytoma demonstrates a cellular neoplasm with tight nests, whorls, fascicles or flat sheets of monomorphic, oval to round cells with bland nuclei and pinpoint nucleoli.…”

Section: Discussionmentioning

confidence: 47%

Intraoperative smear cytology of meningeal melanocytoma of the posterior fossa

Kini¹,

Jeyraj²,

Jayaprakash³

et al. 2009

Cytopathology

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Section: Discussionmentioning

confidence: 47%

Intraoperative smear cytology of meningeal melanocytoma of the posterior fossa

Kini¹,

Jeyraj²,

Jayaprakash³

et al. 2009

Cytopathology

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“…Melanin containing neoplasms of the meninges are uncommon. They include malignant melanoma metastatic to the meninges, primary malignant melanoma of the meninges, diffuse or circumscribed, and the rarely reported clinicopathological entity meningeal melanocytoma that has been reported under various names as pigmented meningioma, melanotic meningioma, cellular blue nevus (Abbott et al, 1968;Graham et al, 1976;Steinberg et al, 1978). Some melanotic tumours with possible attachment (McGavran el al., 1978).…”

Section: Discussionmentioning

confidence: 99%

“…Differential diagnosis included pigmented meningioma, Schwannoma and malignant melanoma (Abbott et al, 1968;h e r et al, 1978). Macroscopically all of them had a similar appearance and intraoperatively, differentiation was impossible.…”

Section: Discussionmentioning

confidence: 99%

Primary meningeal melanocytoma of the spinal cord: report of a paediatric case with benign course and review of the literature

Kordás¹,

Czirják²,

Slowik³

1996

Euro J of Neurology

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A melanin producing encapsulated, intradural‐extramedullar tumour in the thoracic spinal cord was surgically removed from a 12 year old girl. The rumour histologically proved to be a melanocytoma and the patient was treated with radiation therapy. During 18 years of follow up she has been free of symptoms. The clinical and pathological features of the case and the literature are reviewed. The importance of differentiating this benign lesion from meningeal malignant pigmented tumours is emphasized.

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“…The incidence of four cases in 5 yr, interpreted by us as blue naevi, is similar to the number of dermal blue naevi submitted to the Laboratory of the University of Glasgow Department of Dermatology. Possible reasons why MNSTs have not been recognised previously include first, the difficulty in distinguishing this type of tumour, particularly the cellular variant, from metastatic melanoma (Allen and Spitz, 1953) and second, distinguishing the blue naevi from other types of pigmented tumour arising in the nervous system, e.g., pigmented schwannoma (Hodson, 1961 ;Shillitoe, 1965;Dastur et al, 1967;Theodossiou and Segditsas, 1971), pigmented neurofibroma (Bird and Willis, 1969;Harkin and Reed, 1969) and pigmented meningioma (Keegan and Mullan, 1962;Turnbull and Tom, 1963;Abbott et al, 1968;Scott et al, 1971). The close histological resemblance of some of these types of pigmented tumours to MNSTs suggest that they may well be examples of blue naevi.…”

Section: Discussionmentioning

confidence: 99%

Melanotic tumours (blue naevi) of spinal nerve roots

Graham

Paterson

McQueen

et al. 1976

The Journal of Pathology

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Four cases interpreted as intraspinal blue naevi are reported. The patients were adults females with an age range between 22 and 60 yr. In three there was a single tumour arising from the cervical posterior nerve roots and in the fourth there were multiple tumours arising from the posterior nerve roots of the spinal cord and occurring within the cerebello--pontine angle. The histological appearances of the tumours were similar in every way to those of dermal blue naevi. One was of the more common spindle-celled type and three of the cellular variant. The tumours contained melanin-pigment, and spindle cells with dendritic bipolar processes of the type described in dermal blue naevi. One was of the more common spindle-celled type and three of the cellular variant. The tumours contained melanin pigment, and spindle cells with dendritic bipolar processes of the type described in dermal blue naevi. Definite evidence of malignant tranformation was found in two cases and in a third, the appearances were suggestive for early malignant change. Therefore, unlike their dermal equivalents, intraspinal blue naevi appear to have a greater propensity for malignant transformation. In each case a careful clinical examination failed to reveal any evidence of a primary malignant melanoma. In the one case who died and on whom necropsy was performed, the failure to identify a primary cutaneous, mucosal or ocular melanoma substantiated our contention that these tumours were primary.

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Melanotic Meningioma

Cited by 40 publications

References 9 publications

Intraoperative smear cytology of meningeal melanocytoma of the posterior fossa

Intraoperative smear cytology of meningeal melanocytoma of the posterior fossa

Primary meningeal melanocytoma of the spinal cord: report of a paediatric case with benign course and review of the literature

Melanotic tumours (blue naevi) of spinal nerve roots

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