Dermatomyositis

A type of idiopathic inflammatory myopathy characterized by evocative skin lesions and symmetrical proximal muscle weakness.

Ragged cuticle

The cuticle (properly known as the eponychium, or the medial nail fold or the proximal nail fold), is the thickened layer of skin surrounding fingernails and toenails. Its function is to protect the area between the nail and epidermis from exposure to bacteria. This term refers to the presence of and irregular edge or outline of the cuticle.


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PMID (PMCID)
28210382
 OTHER
Paraneoplastic Dermatomyositis with Cutaneous and Myopathic Disease Responsive to Adrenocorticotropic Hormone Therapy.
Wolff M, Mancuso C, Lal K, Dicostanzo D, Gropper C.
J Clin Aesthet Dermatol. 2017;10(1):57-62.
Dermatomyositis is a myopathic or amyopathic autoimmune connective tissue disease that presents with classic dermatologic findings ranging from: poikilodermatous photosensitivity (shawl sign), eyelid edema and violaceous-pigmentation (heliotrope sign), lichenoid eruptions on the knuckles and elbows (Gottron's sign), periungual telangiectasias, and ragged cuticles (Samitz sign).