Clinicians' perspectives of shared care of psoriatic arthritis and psoriasis between rheumatology and dermatology: an interview study.

Objective: Shared care between rheumatologists and dermatologists is advocated for patients with psoriasis and psoriatic arthritis, but care provided by rheumatologists and dermatologists is often siloed, leading to inconsistencies in patient care and outcomes. This study aimed to describe rheumatologists' and dermatologists' perspectives on shared care.

Methods: Face-to-face semi-structured interviews were conducted with 15 rheumatologists and 12 dermatologists across 27 centers in Australia.

Erythema nodosum in an adolescent patient with cryopyrin-associated periodic syndrome.

Cryopyrin-associated periodic syndrome (CAPS) is a monogenetic auto-inflammatory disorder with systemic manifestations. Innate immune system aberrance is seen in both CAPS and erythema nodosum and this case may point to a previously unknown association. In pediatric patients with EN and systemic features, the possibility of underlying CAPS should be considered.

Ichthyosis follicularis, alopecia, and photophobia (IFAP) syndrome due to mutation of the gene MBTPS2 in a large Australian kindred.

Ichthyosis follicularis, alopecia and photophobia (IFAP) is a rare genodermatosis. Most patients have been men without significant family history. We present the largest kindred of IFAP reported to date in the medical literature clearly demonstrating X-linked inheritance.

Pseudoxanthoma elasticum-like lesions in association with thalassaemia major.

A 33-year-old woman with a background of thalassaemia major presented with a 3-month history of yellowish plaques on the back of her neck bilaterally and alterations in the texture of the skin in both axillae. Examination of these lesions showed yellowish cobblestone plaques and coalescing papules in both axillae. Pseudoxanthoma elasticum (PXE)-like lesions were confirmed histopathologically.

Annular lesions in Kawasaki disease: a cause of confusion.

We present three cases of Kawasaki disease in which an annular eruption was the predominant cutaneous finding. The provisional diagnosis was Stevens-Johnson syndrome. However, the annular lesions were not typical of Stevens-Johnson syndrome: the lips were crusted without mucosal ulceration and the conjunctivitis was non-purulent without corneal erosions.