Symptomatic giant thymolipoma in a child.

Thymolipomas are slow-growing benign tumors arising from the thymus. They are rare in children, are usually asymptomatic, and can attain enormous size at diagnosis. Contrast-enhanced computerized tomography (CECT) scan characterizes the thymolipomas as a fat-attenuating lesions in the anterior mediastinum. Surgical excision provides relief from symptoms and is the definitive management. We report a case of a symptomatic giant thymolipoma in a 5-year child to highlight issues in diagnosis and management.

Unilobar re-expansion pulmonary oedema following removal of a large intra-thoracic mass.

Re-expansion pulmonary oedema (RPE) is not so rare complication associated with sudden expansion of a collapsed lung. RPE has been most frequently reported following rapid drainage of a large pneumothorax or chronic pleural effusion. Development of RPE following removal of a large intrathoracic mass is not commonly recognised, though sporadic reports exist in the literature. RPE can be fatal, but early diagnosis with appropriate management usually leads to satisfactory outcomes. We report a case of RPE, which occurred following removal of a giant intra-thoracic mass and its subsequent management and outcome with a brief review of relevant literature.

Evaluating the potential of indigenous methanogenic consortium for enhanced oil and gas recovery from high temperature depleted oil reservoir.

In past years, lots of research has been focused on the indigenous bacteria and their mechanisms, which help in enhanced oil recovery. Most of the oil wells in Indian subcontinent have temperature higher than 60 °C. Also, the role of methanogenic consortia from high temperature petroleum reservoir for enhanced oil recovery (EOR) has not been explored much. Hence, in the present study methanogens isolated from thermophilic oil wells (70 °C) were evaluated for enhanced oil recovery. Methane gas is produced by methanogens, which helps in oil recovery from depleted oil wells through reservoir re-pressurization and also can be recovered from reservoir along with crude oil as alternative energy source. Therefore, in this study indigenous methanogenic consortium (TERIL146) was enriched from high temperature oil reservoir showing (12 mmol/l) gas production along with other metabolites. Sequencing analysis revealed the presence of Methanothermobacter sp., Thermoanaerobacter sp., Gelria sp. and Thermotoga sp. in the consortium. Furthermore, the developed indigenous consortium TERIL146 showed 8.3% incremental oil recovery in sandpack assay. The present study demonstrates successful recovery of both oil and energy (gas) by the developed indigenous methanogenic consortium TERIL146 for potential application in thermophilic depleted oil wells of Indian subcontinent.