Publications by authors named "C C Lezcano"

Objective: To evaluate the relation between solar elastosis and tumor mutation burden (TMB) in a large clinically annotated cohort of stage II and III melanoma patients.

Methods: Primary cutaneous melanomas from 469 AJCC (8 edition) stage II and III patients with clinical annotation including outcome at 5 years of diagnosis were histopathologically evaluated for solar elastosis. Next-generation sequencing assay MSK-IMPACT was employed to determine TMB.

View Article and Find Full Text PDF

Purpose: Patients with stage II and III cutaneous primary melanoma vary considerably in their risk of melanoma-related death. We explore the ability of methylation profiling to distinguish primary melanoma methylation classes and their associations with clinicopathologic characteristics and survival.

Materials And Methods: InterMEL is a retrospective case-control study that assembled primary cutaneous melanomas from American Joint Committee on Cancer (AJCC) 8th edition stage II and III patients diagnosed between 1998 and 2015 in the United States and Australia.

View Article and Find Full Text PDF
Article Synopsis
  • The study focuses on a rare superficial variant of deep penetrating/plexiform melanocytomas/nevi (DPN) that includes a junctional component, complicating diagnosis.
  • It includes 11 cases from 10 patients (5 men and 5 women) aged 27 to 78, with lesions found in various locations, and most cases being associated with a conventional nevus.
  • Immunohistochemical analysis shows strong nuclear beta-catenin and LEF1 staining in all DPN cases, while conventional nevi displayed the opposite pattern, highlighting the need for careful differentiation to avoid misdiagnosis as melanoma.
View Article and Find Full Text PDF

Next-generation sequencing (NGS) is increasingly being utilized as an ancillary tool for diagnostically challenging melanocytic neoplasms. It is incumbent upon the pathology community to perform studies assessing the benefits and limitations of these tools in specific diagnostic scenarios. One of the most challenging diagnostic scenarios faced by skin pathologists involves accurate diagnosis of desmoplastic melanocytic neoplasms (DMNs).

View Article and Find Full Text PDF

Introduction: Cyclin-dependent kinases 4/6 inhibitors (CDK 4/6i) combined with endocrine therapy have become the gold standard in hormone receptor-positive (HR +) HER2-negative (HER2-) metastatic breast cancer (MBC). However, there is a significant lack of data regarding the efficacy and safety of these treatments in elderly patients. We present the results of a real-world data (RWD) cohort stratified by age at treatment initiation (≥ 70 years compared to patients < 70 years).

View Article and Find Full Text PDF