Clinical and histopathological features of adult patients with dermatomyositis and melanoma differentiation associated-5 autoantibody seropositivity status, as determined by commercially available testing: a retrospective, single-institution comparative cohort study.

BACKGROUND: Although melanoma differentiation associated (MDA)-5 autoantibodies have been widely explored in dermatomyositis (DM), most studies have relied on MDA-5 autoantibody testing performed in research settings, rather than the now-available commercial laboratory tests. AIM: To characterize the clinical and histopathological data in patients with DM and circulating MDA-5 autoantibodies, as defined by commercially available testing. METHODS: This was a retrospective review of patients with DM who underwent MDA-5 antibody testing. All available skin biopsy slides were reviewed. RESULTS: Cutaneous features more prevalent in MDA-5-positive DM included Raynaud phenomenon (RP) (P < 0.001), cutaneous ulcerations (P = 0.01), mechanic hands (P < 0.02), palmar papules (P < 0.01), oral ulcers (P = 0.024) and alopecia (P = 0.03). Joint and pulmonary involvement were more common in patients with MDA-5-positive DM (both P < 0.001) as was dysphagia (P < 0.01). Myopathy (P = 0.4) and malignancy (P = 0.34) were not statistically different between the cohorts. Vasculopathy was more common in MDA-5-positive DM (P < 0.01), while spongiosis was less common (P < 0.02). CONCLUSION: This study not only confirms some known associations between disease manifestations and MDA-5 autoantibody status, as determined by commercially available tests, but also identifies new associations, including RP and dysphagia.

Assessment of the accuracy of low-cost store-and-forward teledermatology consultation.

BACKGROUND: Telemedicine has the potential to revolutionize the delivery of dermatologic care to underserved areas. OBJECTIVE: Our purpose was to compare diagnoses from two types of dermatology consultations: telemedicine using store-and-forward (SAF) technology, and traditional face-to-face (FTF) office visits. METHODS: Skin conditions were imaged with a consumer-grade digital camera. A standardized template was used to collect historical data. Information was stored in a secured database for access by 2 or 3 board-certified dermatologists. Results from the FTF visit were used to assess the accuracy of the SAF diagnoses. RESULTS: A total of 106 dermatologic conditions in 92 patients were included. Concordance between FTF and SAF diagnoses was high, ranging from 81% to 89% for all 3 dermatologists. Clinically relevant disagreement occurred in only 4% to 8% of cases. Remaining disagreements did not affect patient care. Diagnostic confidence and image quality affected agreement. When cases of high confidence were analyzed separately, agreement increased to 88% to 100%. This increase was substantiated by means of a chi-square test between the high confidence and low confidence groups, which demonstrated statistical significance (P <. 005) for all dermatologists. Similarly, when cases of above average image quality were considered, agreement increased to 84% to 98%. Again this difference was substantiated by means of a chi-square test between adequate and poor images, with statistical significance for two dermatologists (P <.001). Accuracy was comparable between disease types with the exception of benign neoplasms, which demonstrated agreement of 22% to 46%. CONCLUSION: These data support the use of existing digital technology to construct an accurate SAF teledermatology system. The inexpensive camera and widely available computer equipment make this an extremely affordable system. Furthermore, participating dermatologists appear well aware of system limitations, as reflected in the increased agreement for high confidence cases. Additional investigation of the accuracy of teledermatology for benign neoplasms is warranted.

Clinical assessment and outcome in 70 patients with complaints of burning or sore mouth symptoms.

OBJECTIVE: To review a series of patients with a burning or sore mouth for elucidation of associated conditions and treatment outcome. MATERIAL AND METHODS: We retrospectively studied 70 consecutive patients with a burning or sore mouth who were encountered at a tertiary-care center between 1979 and 1992. Clinical and laboratory findings were summarized, and follow-up data were analyzed. RESULTS: The study cohort of 56 women and 14 men had a mean age of 59 years. They had had a burning or sore mouth for a mean duration of 2.5 years. Multiple etiologic factors for the burning or sore mouth were present in 37% of the study subjects. The most frequently associated conditions were psychiatric disease (30%), xerostomia (24%), geographic tongue (24%), nutritional deficiencies (21%), and allergic contact stomatitis (13%). With a treatment course tailored to the suspected causal factor, 72% of the patients who had follow-up reported improvement. CONCLUSION: With a directed investigation, one or more causes could be identified in most patients who had a burning or sore mouth. Successful management of these symptoms was possible in a majority of the patients.