Betel Quid Use and Tuberculosis Transmission: A Neglected Focus Area for Tuberculosis Control in Low- and Middle-Income Countries.

Habitual betel quid consumption and spitting contribute to tuberculosis (TB) transmission due to direct exposure to pathogens, immunosuppression, and social contact. Despite betel quid being classified as a group 1 human carcinogen and a high prevalence of betel quid consumption in patients with TB, there exists a knowledge gap in the relationship between quid use and TB, which presents as a neglected opportunity to address the global burden of TB in low- and middle-income countries. Understanding such a knowledge gap is crucial when taking measures at various levels, including research prioritization, behavior change communication, and legislation to address the availability and access of quid products, coupled with community-based interventional strategies.

Lymphoscintigraphy With SPECT-CT in Detecting the Site of Chyle Leak in Postoperative Patient.

Here is a case of chyle leak post McKeown esophagectomy. Lymphoscintigraphy with 99m Tc-filtered sulfur colloid revealed tracer accumulation along the thoracic duct and in the left hemithorax. Precise localization of leak was done by SPECT-CT imaging.

Elevated C1s/C1-INH in serum and plasma of myasthenia gravis patients.

Myasthenia Gravis (MG) is an autoimmune neuromuscular disorder where acetylcholine receptor (AChR) antibodies induce membrane attack complex formation at the muscle membrane. The C1-inhibitor (C1-INH) regulates the classical pathway and is a promising marker in other autoimmune disorders. Treatment options for AChR antibody MG include complement inhibitors; nevertheless, the early pathway activation in MG remains unclear.