October 2017 | Volume 7, No. 4

In this issue of Dermatology Practical & Conceptual, Blum and colleagues at the International Dermoscopy Society present a multicenter study to characterize the dermoscopic features of collision skin lesions.

Editorial
Giuseppe Argenziano, Gabriella Brancaccio, Teresa Russo1, Aimilios Lallas

Autoimmune & Blistering Diseases

Research
Observation
Balachandra S. Ankad, Swapnil D. Shah, Keshavmurthy A. Adya

Cosmetic & Aesthetic Dermatology

Observation
Oriol Yélamos1,2, Miguel Cordova1 , Gary Peterson1, Melissa P. Pulitzer3, Bhuvanesh Singh4, Milind Rajadhyaksha1, Jennifer L. DeFazi

Hair & Nail Diseases

Observation

Infectious Diseases

Observation
Sweta Subhadarshani, Deepika Yadav

Inflammatory Diseases

Research
Review
Observation
Sarah Hocker, Harold S. Rabinovitz, Margaret Oliviero, Jane Grant-Kels, Alon Scope
Observation
Claudia Pezzini, Simonetta Piana, Caterina Longo, Elisa Benati, Stefania Borsari, Francesca Specchio, Elvira Moscarella
Observation
Gabriel Salerni, Carlos Alonso, María Calligaris, Mario Gorosito, Ramón Fernández-Bussy

Oncology

Research
Andreas Blum, Graeme Siggs, Ashfaq A. Marghoob, Jürgen Kreusch, Horacio Cabo, Gabriella Campos-do-Carmo, Ana Flávia Cavalcanti Shiraishi, Alexander Kienitz, Cayetana Maldonado-Seral, Paola Maltagliati-Holzner, Zeljko P. Mijuskovic, Andrea M. Yoshimura, Elvira Moscarella, Harold S. Rabinovitz, Cristina Rodriguez-Garcia, Sonia Rodríguez Saa, Pietro Rubegni, Francesco Savoia, Olga Simionescu, Pedro Zaballos Diego, Rainer Hofmann-Wellenhof
Research
Jeffrey B. Morris, Sarah V. Alfonso, Nilda Hernandez, M. Isabel Fernández
Observation
Roberta Giuffrida, Maximilian Uranitsch,  Karin Schmid, Teresa Deinlein, Fabrizio Favero, Iris Zalaudek
Observation
Fezal Ozdemir, Bengu G. Turk, Banu Yaman, Giovanni Pellacani, Necmettin OzdemirIsil Karaarslan, Francesca Farnetani
Observation
Virgínia Coelho de Sousa, André Oliveira