Infection of the nails by fungus is called onychomycosis. This Patient Page describes the risk factors, clinical features, diagnosis, and treatment of onychomycosis. ja.ma/43RR1X4

A retrospective study explored the time interval between diagnosing interstitial lung disease and anti-MDA5 antibody-positive dermatomyositis. ja.ma/4cUknIw

This cross-sectional study assesses risk of dermatological immune-related adverse events associated with immunotherapy for cancer. ja.ma/3UcOWlq

Case report: a man in his 40s who presented with a 5-month history of recurrent pruritic papular erythema with mild scaling on the face, left forearm, and groin.

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The results of this nonrandomized trial suggest that treatment with guselkumab is associated with reduced clinical signs and symptoms of pityriasis rubra pilaris. ja.ma/49BmDS6

Low-dose oral minoxidil (5 mg per day) had similar efficacy to topical minoxidil, 5%, for men with androgenetic alopecia and can be an option for patients who prefer oral therapy or are intolerant to topical treatment. ja.ma/3W0js38

Most viewed in the last 7 days from JAMA Dermatology:

Can surface skin temperature measured by thermal imaging differentiate cellulitis from pseudocellulitis? How does it compare with the ALT-70 prediction model?

ja.ma/4cLxTOQ

A woman in her 80s presented with erythematous, nondesquamative, annular plaques in a cluster of jewels pattern on her wrists and legs. What is your diagnosis? ja.ma/3TItB37

An 11-year-old boy presented with progressive unilateral skin hardening on his right thigh and buttock for 7 years. What is your diagnosis? ja.ma/3wUQ5F1

Case report: well-demarcated brown plaques with overlying fine scale in the bilateral axillae, inframammary folds, and inguinal folds and widespread coral-red fluorescence. ja.ma/3wXjzSG

This case report describes erythematous patches on the face that involved the nasolabial folds, as well as numerous skin-colored homogenous waxy papules on the arms, neck, and trunk. ja.ma/4ammKln

This preliminary global consensus survey study, consisting of 64 hair and scalp disorder specialists from 6 continents, identified several key factors associated with alopecia areata severity independent of the extent of scalp hair loss. ja.ma/3vgCSpL

In this descriptive analysis of patients with chronic inflammatory skin diseases starting systemic immunomodulatory treatment in the US, less than 60% received the recommended pretreatment testing. ja.ma/43ujXVc

Most viewed in the last 7 days from JAMA Dermatology:

Can surface skin temperature measured by thermal imaging differentiate cellulitis from pseudocellulitis? How does it compare with the ALT-70 prediction model?

ja.ma/4cLBGLI

A man in his 40s was referred for an 8-mm red, firm, mobile nodule with irregular red lacunae and vessels and an absence of septa. What is your diagnosis? ja.ma/49hnYxv

This case report describes tofacitinib treatment for 2 patients with pretibial myxedema. ja.ma/3U1QmiD

Osler nodes and Janeway lesions are considered classical findings of infectious endocarditis. However, they are present in only about 2.7% and 1.6% of cases, respectively. This case report describes Osler nodes and Janeway lesions on a man in his 70s. ja.ma/3U1Qm27

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An otherwise healthy man in his 40s was referred to the dermatology clinic for a slowly growing tumor on the scalp. Skin examination revealed an 8-mm red, firm, mobile nodule on the left temporal scalp.

These findings suggest that the design and implementation of an antibiotic stewardship program in acne is needed and should address multiple salient factors in clinical dermatology practices. ja.ma/3vzEk6P

This Viewpoint explains the need for emergency contraception as the last chance to avoid pregnancy for patients taking isotretinoin. ja.ma/49pz8A2