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Cosmetic filler agents may be detected and identified during routine ultrasound of dermatological lesions; the latter appear to be pathologically related to the cosmetic procedure.

The presence and count of hyperechoic spots within BCC lesions may help predicting the high risk of recurrence histologic subtypes.

Infantile systemic hyalinosis and juvenile hyaline fibromatosis are presumably autosomal recessive inherited diseases of unknown origin in which accumulation of an amorphous, hyaline material occurs in the skin and other organs. Both disorders may show clinical overlapping, suggesting that they might represent different variants of the same disease spectrum. We describe a 6-year-old boy with such overlap. Salient features included papular skin lesions on his face and neck, gingival hyperplasia, perianal nodules, large subcutaneous tumors on the scalp, hyperpigmented plaques over the metacarpophalangeal joints and malleoli, limited joint movement, diffuse osteopenia, short stature, and persistent diarrhea. Histopathologic and ultrastructural studies confirmed the presence of hyalin material in the dermis. The term systemic hyalinosis involves both conditions and should be preferred until a clear distinction can be made between them.

Sonography is a noninvasive imaging method that can reliably detect common benign tumors and pseudotumors of the nail and provide precise data about their characteristics. This imaging modality can support diagnosis and surgery and can allow a better definition and improvement of the cosmetic outcome of the treatment.

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BackgroundThe body site location of primary Malignant Melanoma (MM) has been correlated with prognosis and survival. Ethnic, genetics, sun exposure factors are related to the anatomical distribution of MM. Low and high socioeconomic strata in Chile differ in ethnic, genetic and cultural conditions. The purpose of this study was to analyze the anatomical MM distribution in the Chilean population in both strata searching for differences due to their ethno-genetic-cultural differences. Records of 1148 MM, 575cases from state hospitals (Low Socioeconomic Strata, LSS) and 573 cases from private clinics (High Socioeconomic Strata, HSS) were analyzed by body site.ResultsFemales from LSS showed a higher number of MM in soles, cheeks, and around the eye area. Females from the HSS showed a higher number of MM in dorsal feet and dorsal hands. Males from LSS showed a higher number of MM in soles, around the eye area, and cheeks. However, males from HSS showed a higher number of MM in the trunk, and in the arms. Acral MM was significantly higher in LSS than in the HSS in both sexes. The Chilean population from the HSS and LSS showed differences in the distribution of MM by site. Furthermore, gender differences in the proportion of MM analyzed by anatomical site are observed in both strata.ConclusionsResults show evidence that differential genetics factors, sun exposure, or other environmental or cultural factors of both strata may account for these differences.