scholarly journals Differences between pure desmoplastic melanoma and superficial spreading melanoma in terms of survival, distribution and other clinicopathologic features

2019 ◽  
Vol 33 (10) ◽  
pp. 1899-1906 ◽  
Author(s):  
M.D. Howard ◽  
E. Wee ◽  
R. Wolfe ◽  
C.A. McLean ◽  
J.W. Kelly ◽  
...  
2021 ◽  
Author(s):  
Martin G. Cook ◽  
Barry W. E. M. Powell ◽  
Megan E. Grant ◽  
Adele C. Green

AbstractDesmoplastic melanoma commonly occurs on the head and neck in a pure form, but occasionally, it occurs in a mixed tumor with another type, usually superficial spreading melanoma (SSM), and rarely as a metastasis from a primary SSM. We report here a primary SSM on the leg of a 32-year-old male which metastasised to lymph nodes, and 10 years later recurred at the primary site initially with mixed features but evolving to resemble a uniformly desmoplastic, deeply invasive melanoma. This unusual case has implications for clinical management and is additionally notable for its reversal in behavior, from metastatic to local infiltrative type, correlating with the change in morphology.


2021 ◽  
Vol Publish Ahead of Print ◽  
Author(s):  
Mitul B. Modi ◽  
Ata S. Moshiri ◽  
Walter M. Klein ◽  
Giorgos Karakousis ◽  
Khurram Shafique ◽  
...  

2021 ◽  
Vol 8 (3) ◽  
pp. 301-314
Author(s):  
Arnaud de la Fouchardière ◽  
Felix Boivin ◽  
Heather C. Etchevers ◽  
Nicolas Macagno

Cutaneous melanomas are exceptional in children and represent a variety of clinical situations, each with a different prognosis. In congenital nevi, the risk of transformation is correlated with the size of the nevus. The most frequent type is lateral transformation, extremely rare before puberty, reminiscent of a superficial spreading melanoma (SSM) ex-nevus. Deep nodular transformation is much rarer, can occur before puberty, and must be distinguished from benign proliferative nodules. Superficial spreading melanoma can also arise within small nevi, which were not visible at birth, usually after puberty, and can reveal a cancer predisposition syndrome (CDKN2A or CDK4 germline mutations). Prognosis is correlated with classical histoprognostic features (mainly Breslow thickness). Spitz tumors are frequent in adolescents and encompass benign (Spitz nevus), intermediate (atypical Spitz tumor), and malignant forms (malignant Spitz tumor). The whole spectrum is characterized by specific morphology with spindled and epithelioid cells, genetic features, and an overall favorable outcome even if a regional lymph node is involved. Nevoid melanomas are rare and difficult to diagnose clinically and histologically. They can arise in late adolescence. Their prognosis is currently not very well ascertained. A small group of melanomas remains unclassified after histological and molecular assessment.


1993 ◽  
Vol 32 (4) ◽  
pp. 293-296 ◽  
Author(s):  
CARLIN MCLAUGHLIN ◽  
HENRY C. MAGUIRE ◽  
MICHAEL J. MASTRANGELO

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