Overview
Primary malignant neoplasms encompass a broad spectrum of cancerous tumors originating from various tissues. Accurate diagnosis and management are critical for patient outcomes.Diagnosis
Utilize whole-slide imaging (WSI) for primary pathological diagnosis, validated across multiple institutes 1.
Pathologists should adhere to College of American Pathologists guidelines for WSI review 1.
Conventional glass slide microscopy remains a gold standard, with discrepancies evaluated post-washout period 1.
Major discrepancies (significant clinical differences) occur in approximately 0.9% of cases, while minor discrepancies (no clinical impact) occur in about 3.5% 1.Management
No specific drug classes or doses are detailed in the provided abstracts for primary malignant neoplasms.Special Populations
No specific guidance on pregnancy, pediatrics, elderly, or comorbidities related to primary malignant neoplasms diagnosis via WSI is provided in the abstracts 1.Key Recommendations
Employ whole-slide imaging for primary pathological diagnosis after training according to College of American Pathologists guidelines (Evidence: Moderate) 1.
Conduct a washout period of over two weeks between WSI and conventional microscopy reviews to assess discrepancies (Evidence: Moderate) 1.
Address major discrepancies (significant clinical differences) through multidisciplinary review, given their occurrence rate of 0.9% (Evidence: Expert opinion) 1.References
1 Tabata K, Mori I, Sasaki T, Itoh T, Shiraishi T, Yoshimi N et al.. Whole-slide imaging at primary pathological diagnosis: Validation of whole-slide imaging-based primary pathological diagnosis at twelve Japanese academic institutes. Pathology international 2017. link