Lentigo maligna mimicking invasive melanoma in Mohs surgery: a case report [v1; ref status: indexed, http://f1000r.es/2mp]

Lentigo maligna is a lentiginous proliferation of atypical melanocytes confined to the epidermis, typically on chronically sun-damaged skin. Following biopsy and exclusion of invasive disease, therapy may involve Mohs surgery, topical treatment or radiotherapy. However, lentigo maligna often involve...

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Main Authors: Teresa Tsakok, Nisith Sheth, Alistair Robson, Catherine Gleeson, Raj Mallipeddi
Format: Article
Language:English
Published: F1000 Research Ltd 2014-01-01
Series:F1000Research
Subjects:
Online Access:http://f1000research.com/articles/3-25/v1
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author Teresa Tsakok
Nisith Sheth
Alistair Robson
Catherine Gleeson
Raj Mallipeddi
author_facet Teresa Tsakok
Nisith Sheth
Alistair Robson
Catherine Gleeson
Raj Mallipeddi
author_sort Teresa Tsakok
collection DOAJ
description Lentigo maligna is a lentiginous proliferation of atypical melanocytes confined to the epidermis, typically on chronically sun-damaged skin. Following biopsy and exclusion of invasive disease, therapy may involve Mohs surgery, topical treatment or radiotherapy. However, lentigo maligna often involves adnexal structures, creating histological difficulty in distinguishing these foci from invasive melanoma. We present a case in which, during Mohs excision, a nodule of severely atypical melanocytes appeared to lie within the dermis, potentially altering treatment and prognosis. The use of laminin-5 provided a means of resolving this diagnostic dilemma, facilitating continuation of Mohs surgery until tumour clearance was achieved.
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spelling doaj.art-e809f6bcdf4643dab86db2c7e24f40512022-12-21T18:42:40ZengF1000 Research LtdF1000Research2046-14022014-01-01310.12688/f1000research.3-25.v13409Lentigo maligna mimicking invasive melanoma in Mohs surgery: a case report [v1; ref status: indexed, http://f1000r.es/2mp]Teresa Tsakok0Nisith Sheth1Alistair Robson2Catherine Gleeson3Raj Mallipeddi4Dermatological Surgery and Laser Unit, St John’s Institute of Dermatology, St Thomas’ Hospital, London, UKDermatological Surgery and Laser Unit, St John’s Institute of Dermatology, St Thomas’ Hospital, London, UKDermatological Surgery and Laser Unit, St John’s Institute of Dermatology, St Thomas’ Hospital, London, UKDermatological Surgery and Laser Unit, St John’s Institute of Dermatology, St Thomas’ Hospital, London, UKDermatological Surgery and Laser Unit, St John’s Institute of Dermatology, St Thomas’ Hospital, London, UKLentigo maligna is a lentiginous proliferation of atypical melanocytes confined to the epidermis, typically on chronically sun-damaged skin. Following biopsy and exclusion of invasive disease, therapy may involve Mohs surgery, topical treatment or radiotherapy. However, lentigo maligna often involves adnexal structures, creating histological difficulty in distinguishing these foci from invasive melanoma. We present a case in which, during Mohs excision, a nodule of severely atypical melanocytes appeared to lie within the dermis, potentially altering treatment and prognosis. The use of laminin-5 provided a means of resolving this diagnostic dilemma, facilitating continuation of Mohs surgery until tumour clearance was achieved.http://f1000research.com/articles/3-25/v1Skin Cancers (incl. Melanoma & Lymphoma)
spellingShingle Teresa Tsakok
Nisith Sheth
Alistair Robson
Catherine Gleeson
Raj Mallipeddi
Lentigo maligna mimicking invasive melanoma in Mohs surgery: a case report [v1; ref status: indexed, http://f1000r.es/2mp]
F1000Research
Skin Cancers (incl. Melanoma & Lymphoma)
title Lentigo maligna mimicking invasive melanoma in Mohs surgery: a case report [v1; ref status: indexed, http://f1000r.es/2mp]
title_full Lentigo maligna mimicking invasive melanoma in Mohs surgery: a case report [v1; ref status: indexed, http://f1000r.es/2mp]
title_fullStr Lentigo maligna mimicking invasive melanoma in Mohs surgery: a case report [v1; ref status: indexed, http://f1000r.es/2mp]
title_full_unstemmed Lentigo maligna mimicking invasive melanoma in Mohs surgery: a case report [v1; ref status: indexed, http://f1000r.es/2mp]
title_short Lentigo maligna mimicking invasive melanoma in Mohs surgery: a case report [v1; ref status: indexed, http://f1000r.es/2mp]
title_sort lentigo maligna mimicking invasive melanoma in mohs surgery a case report v1 ref status indexed http f1000r es 2mp
topic Skin Cancers (incl. Melanoma & Lymphoma)
url http://f1000research.com/articles/3-25/v1
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