Collision Tumor of Cutaneous Malignant Melanoma and Basal Cell Carcinoma

1998 ◽  
Vol 194 (9) ◽  
pp. 649-653 ◽  
Author(s):  
Eiichiro Hirakawa ◽  
Hiroshi Miki ◽  
Shoji Kobayashi ◽  
Yuri Nomura ◽  
Masaki Ohmori
Skin Cancer ◽  
2021 ◽  
Vol 36 (1) ◽  
pp. 16-20
Author(s):  
Hiroko SAWADA ◽  
Akifumi OHSITA ◽  
Satoshi KOMORI ◽  
Jun ASAI ◽  
Norito KATOH

1998 ◽  
Vol 138 (6) ◽  
pp. 986-992 ◽  
Author(s):  
DE Fine Olivarius ◽  
Lock-Andersen ◽  
GROnhOJ Larsen ◽  
Wulf ◽  
Crosby ◽  
...  

2018 ◽  
Vol 31 (3) ◽  
pp. 362-363 ◽  
Author(s):  
Reid Green ◽  
Meghan Woody ◽  
Anthony C. Soldano ◽  
Erin Madden

2012 ◽  
Vol 2 (2) ◽  
pp. 47 ◽  
Author(s):  
Louise J. Smith ◽  
Ehab A. Husain

Although malignant melanoma (MM) and both basal cell carcinoma (BCC) and actinic keratosis (AK) are sun-induced lesions, the coexistence of these entities at the same anatomical site (collision tumour) is exceedingly rare. We report the case of a 54-year-old woman with a known history of xeroderma pigmentosum variant (XPV) who presented with 2 separate skin lesions over the middle and upper right forearm, respectively. The clinical impression was that of BCCs or squamous cell lesions. On histological examination, both specimens showed features of melanoma <em>in situ </em>(MIS). In the first lesion, MIS merged with and colonised a superficial and focally invasive BCC. In the second lesion, MIS merged with an AK. No separate invasive nests of malignant melanoma were seen in either specimen. The atypical melanocytes were highlighted by Melan-A and HMB-45 immunostaining, whereas the epithelial cells in both the BCC and AK stained with the pancytokeratin MNF-116. The patient had a previous history of multiple MMs and non-melanomatous skin cancers and finally developed widespread metastatic malignant melanoma, which proved fatal. The rare and interesting phenomenon of collision tumours may pose diagnostic difficulties. To our knowledge, this is the first reported simultaneous presentation of cytologically malignant collision tumours in a patient with XPV.


2014 ◽  
Vol 272 (2) ◽  
pp. 505-509
Author(s):  
Shachi Jenny Sharma ◽  
M. Kreisel ◽  
C. Holler ◽  
T. Kroll ◽  
U. Gamerdinger ◽  
...  

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