Articles: human.
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Singapore medical journal · Mar 2024
HER2-low breast cancers: challenges in the interpretation of immunohistochemistry.
Overexpression of human epidermal growth factor receptor 2 (HER2) protein in breast cancers carries significant prognostic and therapeutic implications. Anti-HER2 blockade has shown to be a useful adjunct to surgery in treating HER2-positive tumours. ⋯ At present, IHC scores 0, 1+ and 2+ show significant interobserver variability, and identifying HER2-low breast cancers may pose significant challenges with the current algorithms. More work is needed in this area to better define HER2-low breast cancers, target the appropriate group of patients and assess treatment efficacy.
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Review Observational Study
Prevalence and Clinical Implications of Nontuberculous Mycobacteria Isolation and Infection among Patients with Bronchiectasis in the Jerusalem Area.
Bronchiectasis is an obstructive chronic lung disease characterized by structural changes in large and small airways, namely permanent widening of bronchial lumen resulting in chronic inflammation and infection. Nontuberculous mycobacteria (NTM) are environmental mycobacteria that may cause human infection or colonization with over 150 species identified to date. Bronchiectasis with NTM colonization or infection is often encountered but with varying prevalence and unknown clinical or prognostic significance. ⋯ Bronchiectasis patients with isolation of Pseudomonas aeruginosa experienced more exacerbations than patients with other isolates, consistent with previous studies.