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The original article was published on February 15, 2024 and corrected on April 15, 2024.The revised version of the article corrects Figure 2. The changes appear in the revised online PDF copy of this article.

Spindle cell lipomas are a rare type of lipoma usually presenting in middle-aged to older men, often located on the posterior neck or shoulder; presentation on the foot is exceptionally uncommon. We report a 24-year-old man with spindle cell lipomas on the hallux of his left foot. He experienced an uneventful recovery after excision of the mass. We discuss clinical, radiologic, and histopathologic features of spindle cell lipomas and we review the differential diagnosis at this anatomic site.

Wolf isotopic response describes the onset of a new dermatosis at the site of a previous, healed dermatosis, which is usually a herpes zoster infection. Fibroelastolytic papulosis is a poorly understood elastolytic condition defined by a loss of elastic fibers specific to the papillary dermis. The present report describes a case of fibroelastolytic papulosis with onset following herpes zoster infection. This association provides new evidence for an immunopathogenic origin for fibroelastolytic papulosis and further supports current theories of the pathogenesis of Wolf isotopic response.

This article discusses the challenges in diagnosing clear-cell basal cell carcinoma, a variant of basal cell carcinoma that can exhibit uncommon cytomorphologic characteristics. The differential diagnosis of clear-cell basal cell carcinoma includes other neoplasms with similar features, such as trichilemmoma. The authors conducted a case series study using immunohistochemical staining with CD34 and Ber-EP4 to differentiate clear-cell basal cell carcinoma from trichilemmoma. The results showed that CD34 and Ber-EP4 staining can successfully distinguish between the two entities, providing a useful tool for accurate diagnosis in challenging cases. [Extracted from the article]

This article discusses the association between interleukin-36 (IL-36) staining intensity and histopathologic findings in patients with psoriasis. IL-36 is a proinflammatory cytokine that plays a role in psoriasis, and recent studies have found that IL-36 staining can be used as a diagnostic biomarker for the condition. The study analyzed biopsies from patients with psoriasis and found that high IL-36 staining was associated with higher eosinophil counts, although this association was not statistically significant. The findings suggest that eosinophils may be present in psoriasis biopsies, which challenges the traditional understanding of the condition. However, further research with a larger sample size is needed to confirm these findings. [Extracted from the article]