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Background: Diagnostic criteria are used to identify a patient having a disease in a clinical setting, whereas classification criteria create a well-defined population for research purposes. The diagnosis and classification of amyopathic dermatomyositis (ADM) have not been recognized by most existing criteria for idiopathic inflammatory myopathies (IIMs). To address this, several criteria were proposed to define ADM either as a distinct disease entity or as a subset of the spectrum of IIMs., Objectives: To discuss the diagnosis and classification of ADM and to assesses the available criteria in identifying cases of ADM and/or distinguishing it from dermatological mimickers such as lupus erythematosus., Methods: We conducted an extensive literature search using the PubMed database from June 2016 to August 2018, using the search terms 'amyopathic dermatomyositis', 'diagnosis' and 'classification'., Results: The European League Against Rheumatism (EULAR)/American College of Rheumatology (ACR) criteria, which are the only validated classification criteria for adult and juvenile IIM and their major subgroups, include three cutaneous items (Göttron sign, Göttron papules, heliotrope rash) to be able to classify ADM. This international and multispecialty effort is a huge step forward in the classification of skin-predominant disease in dermatomyositis. However, about 25% of the population with ADM do not meet two out of the three skin features and are misdiagnosed or classified as having a different disease entity, most commonly lupus erythematosus., Conclusions: These gaps rationalize the continuous assessment and improvement of existing criteria and/or the development of validated, separate and skin-focused criteria for DM., (© Published 2018. This article is a U.S. Government work and is in the public domain in the USA.)

Background: Sequential audits over a recent 30-year period from 1981 to 2010 have documented dermatological activity data for the same region of southeast Scotland approximately every 5 years, allowing demonstration of trends in workload., Aim: To undertake similar assessments of outpatient dermatological activity using historical documentation from 1921 to 1965, and to compare trends with modern data., Methods: Historical records held in the libraries of the Department of Dermatology, Royal Infirmary, Edinburgh and in the University of Edinburgh were audited. Details of new dermatological outpatients were recorded for the months of September, October and November from 1921, and at 5-year intervals from 1925 to 1965. Patient age, sex and primary diagnosis were documented. Data were analysed and compared with those of previous audits of the same geographical population from 1981 to 2010., Results: Details of 11 225 new patients were analysed during the period 1921-1965, in conjunction with 7755 patients from the period 1981-2010, giving a total of 18 980 patients included in the study. The monthly number of patients increased by over 3000%, from 74 patients in 1921-2882 patients in 2010. Trends were seen in the following diagnostic categories. Between 1921 and 2010, benign tumours increased from 1% to 36% of workload and malignant tumours from 2% to 11%. Over the same time period, dermatitis decreased from 32% to 13%, and infections from 24% to 2%. Infestations referrals peaked at 12% in the 1940s, but declined to 1% in the 1950s. Viral warts peaked at 49% of patients in 1960 and fell to 3% in 2010., Conclusions: Over a 90-year period, there has been a dramatic rise in new patient dermatological workload. We have found trends in presentations of common dermatological conditions. Outpatient dermatology now appears to be increasingly involved in the detection and treatment of skin malignancy. Although many inflammatory dermatoses remain important, infectious dermatoses are less commonly encountered, compared with historical activity., (© 2016 British Association of Dermatologists.)

Robert Willan is commemorated by a blue plaque on the house in which he lived in Bloomsbury Square in London. He lived there during a productive period of his career, until ill-health caused him to travel to Madeira, where he died. This fitting tribute to Willan is the result of the efforts of Dr. Henry MacCormac, himself an eminent British dermatologist of the first half of the 20th century., (© The Author(s). CED © 2011 British Association of Dermatologists.)

The 40th birthday of the Scottish Skin Biology Club (SSBC) was celebrated in Spring 2009. The SSBC, formerly The Skin Biology Club, has played a vital role in providing a forum and a means of networking for skin researchers in Scotland. This paper summarizes the history of the club.

From an analysis of the original correspondence, it has been possible to establish that Karl Marx's incapacitating skin disease was hidradenitis suppurativa, not 'boils' as was universally assumed at the time and since; the psychological effect of this illness on the man and his work appears to have been considerable.

William Osler was the greatest physician of his time. Specialists reading his textbooks agreed that in their own specialities he was accurate and illuminating. His grasp of dermatology was particularly striking and skin changes are prominent in five of the syndromes named after him and in at least 100 of his papers. This paper describes how his early training in dermatology under Tilbury Fox in London and Hebra in Vienna combined with his unusual personal qualities to enable him to make massive contributions to a wide variety of dermatological topics. These include smallpox, cutaneous tuberculosis, nail growth, leprosy, scleroderma, pigmentation and purpuric eruptions as well as the more obvious hereditary haemorrhagic telangiectasia, angio-neurotic oedema and Osler's nodes.

Thomas Bateman was a physician to the Carey Street Public Dispensary with Robert Willan in the first decade of the nineteenth century when the latter was developing the classification that would act as a foundation for modern dermatology. Following Willan's death with his work still incomplete, Bateman published a book, as an abstract of Willan's full concept, which was probably the most influential dermatology text of the nineteenth century. This was the first classification of dermatology that precisely defined the terms used and fitted individual diseases into a single class, rather than considering different stages of the same disease as maladies that belonged in different classes. This was the first attempt to link treatment to the disease process rather than to the clinical appearances and thus represents the origin of modern scientific clinical dermatology.

We present a brief account of the life and times of Dr Henry Grundy Brooke, a Manchester dermatologist and key figure in British dermatology in the nineteenth century. Our report highlights the achievements of a man whose contributions to dermatology continue to be of relevance in the new millennium.

(Arthur) Rupert Hallam worked as a dermatologist in Sheffield from 1911 to 1944. Early in his career, he also specialized in diagnostic radiology and established this speciality in Sheffield. Hallam performed investigative work on the aetiology of papular urticaria and erythema multiforme, the prognosis of psoriasis, and the aetiology of chilblains. He was an original member of the British Association of Dermatologists from 1920 becoming president in 1935. He also helped to found the North of England Dermatological Society. He was an innovator in both clinical and administrative matters and was the first British dermatologist to develop a full-time training post in the specialty.

With specialization still in its infancy, Victorian surgeons were often concerned with the diagnosis and care of skin disorders. The careers of three London surgeons from successive generations, Sir James Paget, Sir Jonathan Hutchinson and Edward Nettleship are discussed with emphasis on their mutual influence and contributions to dermatology. Nettleship's original description of urticaria pigmentosa and his research into the inheritance of albinism are reviewed in more detail.

In 1798, Robert Willan published the founding textbook of British dermatology. In adopting the elementary lesions principle previously described by Josef Plenck and improving the nomenclature of the skin diseases, Willan established a method for the diagnosis and a doctrine for the nosology of the cutaneous diseases. Introduced into France by Biett in the 1810s, the Willanist method, which allowed diagnosis on the basis of objective criteria, was adopted by the majority of the dermatological community. However, as a doctrine, Willanism, the use of elementary lesions as a framework for classifying diseases, became the subject of lasting debate. In fact, apart from a few, most leading French dermatologists did not accept Willan's doctrine and preferred classifications according to systems which were supposed to reflect the best understanding of the cutaneous diseases: physiological, aetiological and pathological. Willanism is still used by every dermatologist as a method for recognizing skin diseases. It constitutes a firm link to the founding period of modern dermatology and remains a bastion against uncertain hypotheses.