A 20-year-old woman complains of weakness, wet cough, body temperature raise up to 37,5°С in the evenings during one month. In childhood she was under physiatric observation due to conversion of tubercular tests (PPD). The condition is good. No rales in lungs. Chest X-ray: a shadow with dim contours 3х4 cm with a clearing and focuses near the shadow in the upper lobe of the right lung. Blood analysis: ESR - 20 mm/hour, WBC - 7,6*109/L. What is the most likely diagnosis?