Respirable dust and crystalline silica exposure among different mining sectors in India.

Silicosis is one of the major occupational lung diseases among miners worldwide. The objective of this study was to characterize respirable dust and crystalline silica from limestone, iron, and bauxite mines in India. In total, 86 personal dust samples were collected from limestone (n = 30), iron (n = 30), and bauxite (n = 26) mines using dust sampler. The concentration of crystalline silica was analyzed using FTIR spectroscopy. Geometric mean respirable dust concentrations observed were 0.92, 1.08, and 1.07 mg/m3 for limestone, iron, and bauxite mines respectively, similarly for crystalline silica concentration observations were 0.015, 0.012 and 0.008 mg/m3 respectively. Among the three studied ores, mean crystalline silica concentration was statistically significant (p < 0.05) using an analysis of variance test. Although the detected levels of exposure are within the Indian exposure limits, attention should be paid to lower crystalline silica levels to minimize the risk of silicosis.

A rare case report of large B cell lymphoma in adult presentation as intussusception.

Adult intussusception represents 5% of all intussusceptions. Primary gastro-intestinal lymphoma comprises 1%-4% of all gastro- intestinal malignancies 90% of them are B-cell non-Hodgkin's lymphoma (NHL). Most common NHL is diffuse large B-cell lymphoma accounts for 30-40%. Most common lymphoma causing intussusception is diffuse large B-cell lymphoma (DLBCL). We herein report a rare case of ileo-colic intussusception due to DLBCL in a 50- years-old male. Computed tomography showed ileo-colic intussusception with possibility of neoplastic etiology as a lead point. Hemicolectomy with ileo-colic anastomosis was done laparoscopically with post-operative chemotherapy. Subsequently, whole body positron emission tomography-computed tomography verified complete resolution of the malignancy. This study aims to present a rare case of ileo-colic intussusception due to non- Hodgkin's B-cell lymphoma in a patient with unusual clinical course and highlight the importance of not only the timely surgical intervention but also the significance of strict adherence to follow up and chemotherapy will completely eradicate the malignancy.