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Background: Covid – 19 caused by SARS-CoV2 was declared a global pandemic by World Health Organization. Due to rapid disease progression causing severe and fatal complications, Effective biomarkers like D – Dimer, serum ferritin, CRP, IL-6, LDH would be helpful in screening, categorization of patients, their clinical management, and prevention of serious complications, especially in areas where radiological facilities arenot available immediately. Aims and Objectives: The study was aimed to investigate association between levels of inflammatory biomarkers with Covid – 19 disease severity and correlate it with HRCT chest finding to identify patients at risk of fatal complications. Materials and Methods: It was a retrospective monocentric observational study undertaken at a tertiary-care, COVID-19 dedicated centre. 200 Patients>18 year of age who were admitted from August 1, 2020 up to October 31,2020 with laboratory confirmed diagnosis of Covid – 19 were included in the study. Data was collected on demography, disease severity, laboratory measurements, radiology imaging retrospectively from electronic and laboratory records of patients. The disease severity was classified into mild to severe based on CT Severity scoring. HRCT Chest and inflammatory biomarkers were sent in every patient at the time of admission and the outcome was recorded. Results: There were 133 male patients, 67 female patients in our study. Average age of patients having severe lung involvement is 54.1 years, whereas Average age of patients having non-severe lung involvement is 52 years but showed No significant association with severity of lung involvement. Severity of lung involvement according to HRCT chest findings was greater in patients with raised values of both D – Dimer and ferritin (RR:3.67, P value:<0.0001), compared to combination of raised value of D – Dimer with LDH (RR: 2.56, P value: 0.0383) or D – Dimer with CRP(RR:2.22, P value:0.0157) or isolated D– Dimer (RR:2.87, P value: 0.0727). Individually raised levels of serum ferritin, LDH and CRP were also found to be significantly associated with radiological severity among covid-19 patients. Neither raised IL-6 levels (p=0.368, RR: 0.76) nor did combined raised value of D – Dimer with IL-6 showed significant association with HRCT severity in our study (RR: 1.69, P value: 0.1193). Pearson correlation coefficients were also calculated and serum LDH showed strongest correlation with increasing lung involvement in HRCT chest, followed by serum ferritin. Conclusion: Based on the significant association, combination of D – Dimer with ferritin as well as isolated levels of inflammatory markers can help in assessing the severity of Covid – 19 disease based on its correlation with radiological severity, thereby it will help in immediate categorization of patients into different risk groups following diagnosis, to ensure optimal resource allocation.

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Primary hydatid disease of breast is a rare entity and is caused by the larval stage of Echinococcus granulosus. The disease is more commonly seen in sheep-rearing populations and imaging plays a pivotal role in its diagnosis. Several imaging signs have been described in relation to hydatid cysts. However, the "scroll sign," due to the infolding of the endocyst, has rarely been encountered, with only one similar case in literature, in which the imaging findings were inconclusive. We present a case of primary hydatid disease of breast in a young Asian woman, with the sonographic scroll sign.

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Osteochondromas are the most common benign osseous neoplasms, with a propensity to involve long bones. The involvement of the coronoid process is extremely rare, and osteochondromas of the coronoid process may form pseudoarticulations with the zygomatic arch when large, an entity that is extremely rare and termed as Jacob disease. Sarcomatous degeneration of osteochondroma of the coronoid process is an extremely rare entity and has not been described to date. Only 1 case of primary mesenchymal chondrosarcoma has been described. We present a case of a 24-year-old man with a chondrosarcoma of the coronoid process, who was wrongly diagnosed with Jacob disease on the basis of radiologic findings.

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Fig 2. Axial HRCT of the chest through lower lung zones showing giant bullae occupying more than one-third of hemithorax in bilateral lung bases. HRCT = high resolution chest computed tomography. Fig 3. Frontal chest radiograph showing multiple bullae in bilateral lung fi elds. However, the possibility of pneumothorax cannot be excluded.