1. Idiopathic extensive acanthosis nigricans with a variant of the epidermal growth factor receptor 
Amena Alkeswani, BS, Evelina Pierce, MD, Craig A. Elmets, MD 
JAAD Case Reports 
Volume 6, Issue 2, Pages (February 2020)
DOI: /j.jdcr
Copyright © 2019 American Academy of Dermatology, Inc. Terms and Conditions

2. Fig 1
Extensive, papillomatous, hyperpigmented velvety plaques on (A) the left axilla and (B) the posterior aspect of the neck.
JAAD Case Reports 2020 6, 79-82DOI: ( /j.jdcr )
Copyright © 2019 American Academy of Dermatology, Inc. Terms and Conditions

3. Fig 2
The EGFR mutation at nucleotide c.2648 was detected with whole-genome sequencing. EGFR, Epidermal growth factor receptor; TK, tyrosine kinase; TM, transmembrane.
JAAD Case Reports 2020 6, 79-82DOI: ( /j.jdcr )
Copyright © 2019 American Academy of Dermatology, Inc. Terms and Conditions