Publications by authors named "Rodolfo David Palacios Diaz"

Article Synopsis
  • The study investigates microsatellite instability (MSI) in melanoma patients by examining the expression of DNA mismatch repair (MMR) proteins in tissue samples, which is important for understanding its prognostic value and treatment strategies.* -
  • Out of 93 melanoma patients, most showed significant expression of MMR proteins, but a low expression of MSH6 and overall MMR protein expression (MMR-e) was linked to better melanoma-specific survival rates.* -
  • The findings suggest that patients with higher MMR-e who received immunotherapy experienced worse outcomes, indicating the need for further research to clarify the implications of MSI in melanoma treatments.*
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Megaconial congenital muscular dystrophy (MCMD) is a rare autosomal-recessive multisystem disorder characterized by delayed motor development, intellectual disability, and skin involvement. We report a patient with MCMD who had diffuse ichthyosis-like scaling, and successfully responded to ustekinumab.

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A case of mpox pharyngitis in absence of cutaneous lesions is reported. Usually, clinical presentation is either a cutaneous eruption or a combination of cutaneous and mucosal lesions. In patients with atypical pharyngitis, regardless of the presence of skin lesions, pharyngeal swabs should be collected to rule out mpox.

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Scalp melanomas (SM) have been previously associated with poor overall and melanoma-specific survival rates. The aim of this study was to describe and compare the clinicopathological characteristics and survival outcomes of SM and non-scalp cutaneous head and neck melanoma (CHNM). An observational multi-center retrospective study was designed based on patients with CHNM followed in two tertiary care hospitals.

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Background And Objectives: The increasing use of biologics in the treatment of inflammatory diseases has led to more cases of leishmaniasis in patients subjected to iatrogenic immunosuppression. The main objective was to describe the characteristics of the patients with cutaneous (CL) or mucocutaneous (MCL) leishmaniasis who were receiving a biological therapy at the time of diagnosis.

Patients And Methods: A multicenter retrospective study was design based on a cohort of patients diagnosed with CL or MCL.

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Multiple primary melanomas (MPM) refer to the occurrence of more than one synchronous or metachronous melanoma in the same individual. The aim of this study was to identify the frequency of MPM and describe the clinical and histopathologic characteristics of patients with MPM. An observational single-center retrospective study was designed based on a cohort of melanoma patients followed in a tertiary care hospital.

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The association of multiple pilomatricomas with xeroderma pigmentosum has not been described. We report a case of a child with multiple pilomatricomas and photosensitivity who was found to have a pathogenic variant in exon 4 of XPA and a likely pathogenic variant in COL6A1.

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