CT Imaging Findings of Porcelain Gallbladder and Epiploic Appendagitis: Two Rare Abdominal Pathologies in an Asymptomatic Patient

Objective: COVID-19 has been detected in Turkey since March 11, 2020. Istanbul has become an important center of the pandemic in Turkey. Various risk factors for COVID-19 infection, mortality, and morbidity are under investigation. Recent studies have suggested that certain blood groups are risk factors for the disease. The aim of this study is the evaluation the relationship between blood groups and the risk of contracting COVID-19 disease, clinical severity of the disease, and CT (computed tomography) imaging findings. Material and Methods: Age, gender, blood group data, clinical severity and CT images of 300 patients who were positive with RT PCR (Reverse transcription-polymerase chain reaction) and were followed up in the clinic were retrospectively scanned and recorded. The clinical severity of the disease and CT imaging findings were scored, and the data were evaluated statistically. Results: While the incidence of COVID-19 was high in the A blood group, it was low in the 0 blood group. Although there was no significant difference between blood types and clinical severity, the involvement in the B blood group was more severe on CT imaging. Conclusion: People with A blood group should pay more attention to protection and isolation. Investigating this difference and underlying pathogenic mechanisms can guide science with advanced studies.

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Sarcoidosis

Chest Imaging ◽

10.1093/med/9780199858064.003.0076 ◽

2019 ◽

pp. 441-446

Author(s):

Juliana Bueno

Keyword(s):

Chest Radiography ◽

Asymptomatic Patient ◽

Systemic Disease ◽

Imaging Study ◽

Epithelioid Cell ◽

Unknown Etiology ◽

Imaging Findings ◽

Clinical Context ◽

Pathological Confirmation ◽

Necrotizing Granulomas

Sarcoidosis is a systemic disease of unknown etiology, characterized by noncaseating epithelioid cell granulomas. Patients with sarcoidosis are frequently asymptomatic and may be diagnosed incidentally because of an abnormal imaging study. Sarcoidosis is a diagnosis of exclusion that warrants pathological confirmation in all cases. The distribution of granulomas in the lungs is characteristic and correlates with imaging findings; non-necrotizing granulomas classically exhibit a perilymphatic distribution. On chest radiography, the presence of bilateral hilar and right paratracheal lymphadenopathy, particularly in a young asymptomatic patient, should raise the possibility of sarcoidosis. On CT, a perilymphatic distribution (peribronchovascular, subpleural, septal) of abnormalities in the appropriate clinical context is highly specific for sarcoidosis.

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Non-neoplastic conditions mimicking peritoneal carcinomatosis at CT imaging

British Journal of Radiology ◽

10.1259/bjr.20200401 ◽

2020 ◽

Vol 93 (1113) ◽

pp. 20200401

Author(s):

Mohab M Elmohr ◽

Khaled M Elsayes ◽

Perry J Pickhardt

Keyword(s):

Peritoneal Carcinomatosis ◽

Ct Imaging ◽

Imaging Features ◽

Imaging Findings ◽

Abdominal Ct ◽

Cross Sectional ◽

Specific Patient ◽

Cross Sectional Imaging ◽

Sectional Imaging ◽

General Appearance

The general appearance of peritoneal carcinomatosis at abdominal CT and other cross-sectional imaging modalities consists of varying amounts of peritoneal-based soft tissue implants (mass-forming or infiltrative), peritoneal fluid, and occasionally calcification. However, a wide variety of common and uncommon neoplastic and non-neoplastic conditions can closely mimic peritoneal carcinomatosis at imaging. Neoplastic mimics of peritoneal carcinomatosis include primary peritoneal and sub peritoneal tumors, as well as peritoneal lymphomatosis and sarcomatosis. Broad categories of non-neoplastic mimics of peritoneal carcinomatosis include tumor-like conditions, systemic processes, atypical infections, and fat-based conditions. For many entities, suggestive or specific patient information and/or CT imaging findings exist that may allow the radiologist to narrow the differential diagnosis. In this article, we review the salient clinical and cross-sectional imaging features of non-neoplastic mimics of peritoneal carcinomatosis and malignancy, with emphasis on the CT findings and the additional clues that may suggest the correct benign diagnosis.

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