Dermatology online journal最新文献

A right-hand-dominant female presented 5 weeks following a right middle finger intralesional cantharidin injection for a common wart by a dermatologist. The patient experienced progressive stiffness, blistering, swelling, pain, and ultimately, full-thickness skin necrosis surrounding the injection site. Careful debridement followed by a full-thickness skin graft was performed with no evidence of involvement of the germinal matrix or terminal extensor tendon. At the 7-month postoperative mark, the patient's graft exhibited favorable healing and improved functionality that did not require further follow-up. Intralesional injection of cantharidin solutions for digital warts leads to progressive skin necrosis. Our case required prompt debridement and defect coverage. Involvement of the underlying anatomical structures was also a concern. Dermatologists and hand surgeons should be familiar with this complication as intralesional cantharidin injections are contraindicated.

Importance: The call for robust randomized clinical trials (RCTs) comparing Mohs micrographic surgery (MMS) with wide local excision for treatment of melanoma has stymied the development of guidelines for MMS despite growing evidence of benefit. This commentary explores the controversy by detailing opposing arguments, reviewing the relevant evidence supporting the use of MMS for early-stage melanoma, and discussing the role that RCTs may play in development of national guidelines for surgical treatment options for melanoma. Randomized clinical trials are considered the gold standard of clinical research, but there are no such trials currently to support MMS for melanoma. However, there is a growing literature base of retrospective and prospective cohorts and meta-analyses consistently demonstrating the efficacy and cost-effectiveness of MMS for melanoma. The dearth of clear consensus guidelines has contributed to confusion by referring specialties, controversy across specialties managing melanoma, and inequality in access. Recognizing that this is an ongoing area of discussion within dermatologic surgery, we explore opposing arguments with regard to the demand for RCT data to support dermatologic surgery practices.

Breast cancer is one of the most common malignancies that can lead to cutaneous metastasis. Dermatopathologists often play an important role in the diagnosis of breast cancer metastasis to the skin. Rarely, dermatopathologists render a histopathologic diagnosis of primary breast cancer. We discuss a 51-year-old man with metastatic breast adenocarcinoma who presented after admission to the intensive care unit in the setting of altered mental status and critical anemia. Examination revealed a 14cmx12cm ulcerated, fungating tumor occupying the left breast. A four mm punch biopsy from the mass showed cords of atypical cells infiltrating the mid-to-deep dermis positive for CK7, GATA3, ER and PR. CK20, P40, p63, and TTF1 stains were negative. HER2/NEU immunoperoxidase stain was negative. CA15-3 was elevated at 75U/ml. Taken together, he was diagnosed with primary left breast ductal adenocarcinoma, grade two with subsequent visceral metastases to the bones, lymph nodes, and lungs. Although male breast cancer makes up less than 1% of all breast cancers, its incidence has been increasing worldwide. Recognition of the unique clinical and histologic findings of primary breast carcinoma is important to avoid delay in the diagnosis and initiation of appropriate treatment.

This commentary underscores the urgent issue of limited access to dermatologic care in rural areas, leading to adverse health outcomes. With only 10% of dermatologists practicing in rural America, the "rural mortality penalty" contributes to escalating morbidity and mortality. Disparities in dermatologist distribution, particularly in minority-majority counties with lower incomes, worsen health inequities. Despite these challenges, initiatives such as pipeline programs, rural university offices, rural dermatology residency tracks, teledermatology, and Project ECHO (a collaborative model of medical education and care) are promising. This commentary stresses the need for academic dermatologists to recruit more rural medical students and train more residents with a rural upbringing. This predicts future practice in such communities. Immediate action to address the widening rural dermatology gap is needed. The formation of the Rural Access to Dermatology Society, with its first meeting in the spring of 2024 at the annual meeting of the American Academy of Dermatology, is a key part of this process.

Melanoma is a life-threatening tumor that significantly impacts individuals' health and society worldwide. Therefore, its diagnostic tools must be revolutionized, representing the most remarkable human efforts toward successful management. This retrospective study includes the multidimensional analysis of five melanomas in a man in our clinic including whole-body photography, dermatoscopy, artificial intelligence system, genetic test, and the final histopathological conclusion. The correlation between findings in each diagnostic step is discussed. The value of the melanoma grading system will be the application in high-risk lesions to make the right management decision.

Exudative (wet) age-related macular degeneration can be treated with the vascular endothelial growth factor (VEGF)-inhibiting monoclonal antibody bevacizumab. Currently, bevacizumab therapy is associated with known skin-related side effects, such as rash, mucosal hemorrhage, and hemorrhagic ulcers. While subungual "splinter" hemorrhage is a documented side effect of VEGF receptor antagonists and Raf protein inhibitors, there are no prior reports of bevacizumab-induced subungual hemorrhage to the best of our knowledge. Thus, we present the case of a 71-year-old female diagnosed with bilateral age-related macular degeneration, who, during six months of intravitreal bevacizumab treatment, began noticing fingernail discoloration, described as similar to that of a bruise. Given our patient's history of bevacizumab therapy and the documented reports of bevacizumab-associated mucosal and ulcerative hemorrhage, we hypothesize that the discoloration and hemorrhage are likely unreported adverse effects associated with bevacizumab therapy.