Photoallergic contact dermatitis (PACD) is a delayed-type reaction that occurs when an exogenous agent contacts the skin, which is then exposed to ultraviolet (UV) and/or visible radiation. 1 We herein present the first case of PACD caused by benzophenone in swimming goggles. CASE REPORTA 66-year-old man developed a red periorbital pruritic rash that began 12 hours after wearing his new Arena Orbit 2 swimming goggles in an outdoor pool. He presented with eyelid, periorbital, and scalp erythema as well as vesicles and edema (Figure 1). We performed a patch test with the Spanish baseline series, rubber and plastics/glues series (Martitor, Barcelona, Spain), and two pieces of rubber from the eye and the scalp zones of the goggles "as is". Test series were applied on the back under occlusion for 48 hours in Curatest and readings were performed on day (D) 2, D4, and D8. Positive reactions were found to quaternium-15 1% pet. (D2, D4, and D8++), p-tert-butylphenol formaldehyde resin 1% pet. (D8++), and benzoyl peroxide 1% pet. (D4 and D8+) F I G U R E 1 Acute eczematous reaction in the area where the swimming goggles were in skin contact following sun exposure MELÉ-NINOT ET AL. 59

Case SynopsisCase 1 An 82-year-old woman was referred for a painful nodule on her left sole, which had gradually enlarged over the prior 6 months. She denied a history of trauma . On physical examination, she exhibited a unique well-defined, skin-colored nodule on her left sole (Figure 1A). Ultrasonography revealed a hypoechoic, well-circumscribed oval nodule measuring 21mm in maximum diameter. On color

Subungual squamous cell carcinoma is very rare, but it is the most frequent primary malignant tumor of the nail bed. Therefore, its diagnosis and treatment are crucial to ensure a favorable prognosis. We present the sonographic findings in a case of a subungual squamous cell carcinoma. © 2017 Wiley Periodicals, Inc. J Clin Ultrasound 46:212-214, 2018.

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Lipomatous metaplasia of the upper dermis is a rare phenomenon scarcely described in the literature which has always been identified in the context of inflammatory or neoplastic processes. Microscopically, it should be distinguished from pseudolipomatosis cutis, dermal lipoma, nevus lipomatosus, and focal dermal hypoplasia (Goltz syndrome). This is the first report of the histologic and ultrasound evaluation of a patient with extensive involvement and the description of the coincidental finding of an anomalous nonseptate subcutaneous tissue.

Objectives Calcium depositions are frequent in multiple inflammatory dermatosis, they can be explored by ultrasound (US) but the patterns of these depositions have not yet been described. The aim of this study is to describe different patterns of calcium deposition in inflammatory dermatoses. Methods The clinical and US data of 58 patients from 7 different centers with inflammatory dermatosis showing ultrasonography‐detected calcium depositions was retrospectively reviewed. Results Dystrophic calcinosis represented 86.2%, calciphylaxis 8.6%, and metastatic calcinosis 5.2%. Three different sonographic patterns of calcium deposition were found: 1) thin hyperechoic bands, parallel to the surface of the epidermis, generating a strong and wide posterior acoustic shadow; 2) hyperechoic spots or lumps with a narrow acoustic shadow; and 3) a linear hyperechoic band parallel to the walls of a blood vessel with also a narrow acoustic shadow. The predominant pattern in metastatic calcifications was type 1, in dystrophic calcifications type 2, and in calciphylaxis type 3. In dystrophic calcinosis, cutis deposits were longer and wider than in calciphylaxis (P < .05). Conclusion New data on inflammatory dermatoses with calcium deposition may be useful for the diagnosis and monitoring of calcium deposits and could avoid the performance of more invasive tests, such as a skin biopsy.

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