A Rare Case of Pembrolizumab-Induced Dermatomyositis in a Patient with Cancer of Unknown Primary Origin

Kensaku Takatsuki; Toyoshi Yanagihara; Ayaka Egashira; Naruhiko Ogo; Seiji Yoshizawa; Syunya Sunami; Tatsuma Asoh; Takashige Maeyama

doi:10.12659/AJCR.930286

27 April 2021: Articles

A Rare Case of Pembrolizumab-Induced Dermatomyositis in a Patient with Cancer of Unknown Primary Origin

Challenging differential diagnosis, Unusual or unexpected effect of treatment, Diagnostic / therapeutic accidents, Unexpected drug reaction, Rare disease

Kensaku Takatsuki ^A , Toyoshi Yanagihara ^A* , Ayaka Egashira ^E , Naruhiko Ogo ^E , Seiji Yoshizawa ^D , Syunya Sunami ^D , Tatsuma Asoh ^D , Takashige Maeyama ^A

DOI: 10.12659/AJCR.930286

Am J Case Rep 2021; 22:e930286

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Background Case Report Discussion Conclusions References:

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Figure 1. Clinical features of the patient. (A) Edema with erythema of the eyelids indicating heliotrope rash and (B) edema of the right palm. (C) A magnetic resonance imaging scan of both thighs showed signal abnormalities in the left lateral and distal vastus medialis muscles.

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A Rare Case of Pembrolizumab-Induced Dermatomyositis in a Patient with Cancer of Unknown Primary Origin

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