Tumor Heterogeneity Shapes Survival Dynamics in Drug-Treated Cells, Revealing Size-Drifting Subpopulations.

The goal of this project was to demonstrate that subpopulations of cells in tumors can uniquely fluctuate in size in response to environmental conditions created during drug treatment, thereby acting as a dynamic "rheostat" to create a favorable tumor environment for growth. The cancer modeling used for these studies was subpopulations of melanoma cells existing in cultured and tumor systems that differed in aldehyde dehydrogenase (ALDH) activity. However, similar observations were found in other cancer types in addition to melanoma, making them applicable broadly across cancer.

Adding "Unlikely" as a Clinical Qualifier Is Unlikely to Be of Help: A Retrospective, Single-Center, Cross-Sectional Cohort Study.

Clinical correlation is essential to accurate and efficient diagnosis and differential diagnosis in dermatopathology. Poor-quality clinical information can lead to failures and delays in patient care. Some clinicians use the term "unlikely" when submitting a specimen.

Diffuse neurofibroma with hypertrichosis in a toddler.

Diffuse neurofibroma is a rare type of neurofibroma uncommonly reported in infancy. It is a slow growing tumor originating in the peripheral nerve sheath. We present the case of a 17-month-old boy with diffuse neurofibroma of the scalp associated with hypertrichosis.

Safety of extract EPs 7630 in young children with acute bronchitis.

Background: The efficacy and tolerability of DC. root extract EPs 7630 in children with acute bronchitis (AB) have been widely demonstrated. We investigated the safety and tolerability of a syrup formulation and an oral solution in pre-school children.

Cutaneous VCL::ALK fusion ovoid-spindle cell neoplasm.

Cutaneous VCL::ALK fusion spindle (ovoid) cell tumor is unique. Recently emerged RAS::MAP tyrosine kinase fusion sarcomas more commonly involve subcutis, skeletal muscle and even bone. We share our experience with a novel cutaneous VCL::ALK spindle cell tumor.

Impact of trainee experience on shave biopsy specimen size.

Background: Skin biopsies are crucial for the diagnosis of many cutaneous pathologies, yet specimen adequacy is essential for definitive diagnosis. Recent literature has noted a trend in decreasing biopsy size over time, which has created concern over implications regarding adequacy for diagnosis.

Methods: This study sought to evaluate if clinician training length or type of residency training impacted the average biopsy size and sample adequacy.

Two cases of adenodermatofibroma.

Dermatofibromas (DF) are common skin lesions composed of a dermal proliferation of fibroblasts and histiocytes. Among the variants of DFs, adenodermatofibroma are characterized by a dense proliferation of fibroblasts and histiocytes admixed with entrapped dilated glandular structures. We report two additional cases of adenodermatofibromas, review the literature, theorize on the histopathogenesis of this variant, and suggest that there are different patterns among adenodermatofibromas, from primarily cystic to primarily glandular.

SOX10 Immunostaining in granulomatous dermatoses and benign reactive lymph nodes.

Background: SOX10 immunostaining has been considered a highly sensitive and specific marker for melanoma. But there is evidence suggesting that SOX10 positive cells can be present in dermal scars. Therefore, we investigated whether non-melanocytic cell types present in chronic inflammatory processes or benign lymph nodes express SOX10.