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2021•Journal of Cosmetic DermatologyRequires access

Amelanotic nodular appearance within superficial spreading melanoma

Betül Taş, Aynur Özen, Aysel Çağlar

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Abstract

Usual clinical types of malignant melanoma (MM) are lentigo maligna, superficial spreading, nodular, and acral lentiginous MMs. Rarer variants of MM are amelanotic, neurotropic, desmoplastic, metastatic, invisible, pedunculatedmelanoma (PM), or nodal melanoma (NM), which constitute less than 5% of cases. Recognition and discrimination of these variants are important to avoid misdiagnosis of MM. We report a 42-year-old Caucasian woman presented with a superficial spreading malignant melanoma (SSM) with an amelanotic nodular center. The lesion simulated a NM or PM clinically, but its histopathology showed an SSM. This misleading appearance of SSM has not been reported previously.

About this research paper

What this paper is about

Usual clinical types of malignant melanoma (MM) are lentigo maligna, superficial spreading, nodular, and acral lentiginous MMs. Rarer variants of MM are amelanotic, neurotropic, desmoplastic, metastatic, invisible, pedunculatedmelanoma (PM), or nodal melanoma (NM), which constitute less than 5% of cases. Recognition and discrimination of these variants are important to avoid misdiagnosis of MM. We report a 42-year-old Caucasian woman presented with a superficial spreading malignant melanoma (SSM) with an amelanotic nodular center. The lesion simulated a NM or PM clinically, but its histopathology showed an SSM. This misleading appearance of SSM has not been reported previously.

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OpenAlex reports 2 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

Usual clinical types of malignant melanoma (MM) are lentigo maligna, superficial spreading, nodular, and acral lentiginous MMs. Rarer variants of MM are amelanotic, neurotropic, desmoplastic, metastatic, invisible, pedunculatedmelanoma (PM), or nodal melanoma (NM), which constitute less than 5% of cases. Recognition and discrimination of these variants are important to avoid misdiagnosis of MM. We report a 42-year-old Caucasian woman presented with a superficial spreading malignant melanoma (SSM) with an amelanotic nodular center. The lesion simulated a NM or PM clinically, but its histopathology showed an SSM. This misleading appearance of SSM has not been reported previously.

Key concepts: Lentigo maligna melanoma, Nodular melanoma, Acral lentiginous melanoma, Superficial spreading melanoma, Histopathology, Lentigo maligna, Medicine, Amelanotic melanoma

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