Melanoacanthoma of the eyelid

Spott, D. A.

doi:10.1001/archderm.105.6.898

Cited by 11 publications

(9 citation statements)

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“…First described by Bloch in 1926 as a Melanoepithelioma, Mishima & Pinkus in 1960 gave it clarity by introducing the term melanoacanthoma. The 17 cases reported in the literature to date attest to the rarity of this lesion which may test the acuity of both clinician and pathologist (Traub 1950, Spott et aL 1972, Reaves 1974, Delacr^taz, 1975.…”

mentioning

confidence: 99%

Melanoacanthoma

Ol¹,

Rowden²,

Tm³

et al. 1978

J Cutan Pathol

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Electronmicroscopic studies confirmed that melanoacanthoma is a non-nevoid elevated epithelial tumor composed of keratinocytes of both basaloid and spinous differentiation and of large dentritic melanocytes. The block in transfer of pigment from melanocytes to keratinocytes was found not to be complete. Langerhans cells, present in the malpighian layers were normal in morphology. Immunofluorescent studies and an immunoprecipitin assay also showed our patient's melanoacanthoma not to be related to malignant melanoma.

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confidence: 99%

Melanoacanthoma

Ol¹,

Rowden²,

Tm³

et al. 1978

J Cutan Pathol

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“…Melanoacanthoma has also occurred in the oral mucosa and the eyelid [12,13].Up to the present time, 22 cases of oral melanoacanthoma have been reported [2,3,11,14]. Melanoacanthoma is histopathologically characterized by a hyperplastic epidermis including large dendritic melanocytes and nonpigmented keratinocytes [4,8].…”

Section: Discussionmentioning

confidence: 99%

Scapular melanoacanthoma

Aşkar

Buyukbayram

2002

Eur J Plast Surg

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Cutaneous melanoacanthoma is a rare benign epidermal melanocytic lesion. It occurs in the head and is similar to seborrheic keratosis or pigmented basal cell carcinoma. It grows slowly and is usually seen in elderly male patients. It rarely occurs on the back. A 55-year-old woman presented with a red-colored nodular lesion of her back. Four years previously it had been noted by the patient; it was a red colored nodular lesion and 0.5 cm in diameter at that time. It had enlarged and was now 4 cm in diameter. Previous biopsies had been diagnosed as basal cell carcinoma and it was for this reason she was seen. On physical examination, a painless, crusty, red-black-colored, mobile lesion, 4 cm in diameter, was observed. The lesion was totally excised, and repaired with a Limberg flap. The specimen was sent for histopathological examination, which revealed a diagnosis as a melanoacanthoma. No recurrence was seen 6 months later and the postoperative result was cosmetically acceptable.

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“…3 Most authors consider MA a rare entity. [4][5][6][7][8][9][10] In a study by Prince et al, only five cases were identified among 500,000 consecutive skin biopsies of compatible lesions. 2 However, Simon et al 9 oval tumor with a diameter ranging from a few millimeters to 10 cm.…”

Section: Agminated Melanoacanthomasmentioning

confidence: 99%

“…Cutaneous MAs are mainly found on the head and trunk, although they have also been found in peculiar areas like the penile shaft or eyelid. 5,8 The average time between diagnosis and removal is 8-10 years. 6 Cutaneous MA is a usually painless, slow-growing, benign, mixed neoplasm composed of dendritic melanocytes scattered throughout the keratinocytes.…”

Section: Agminated Melanoacanthomasmentioning

confidence: 99%