ABSTRACT
INTRODUCTION AND IMPORTANCE: Myxoma is a benign tumor and is mesenchymal in origin. Myxomas of the retroperitoneum are extremely rare entities. CASE PRESENTATION: We here report a case of a 67-year-old male who presented with progressive abdominal distention for 3 years. Laboratory investigations revealed a reduction in erythrocytes, lymphocytes, hemoglobin, and an elevation in carbohydrate antigen 19-9. Imaging findings showed a multilocular cystic mass in the right abdomen with thin septa and internal calcifications. Laparotomy revealed that the mass had arisen from the retroperitoneum and the histological study suggested the diagnosis of myxoma. DISCUSSION: Myxoma features as a "cystic mass" in imaging studies. Therefore, the possibility of a cystic lymphangioma, cystic mesothelioma and myxoma should be considered when a multicystic lesion in the retroperitoneal space is observed. Due to the rarity of retroperitoneal myxomas and lack of specific manifestations and diagnostic methods, preoperative diagnosis is often delayed or incorrect. And until now, only a few cases of retroperitoneal myxoma have been reported. CONCLUSION: The report will increase the understanding of the diagnosis and treatment of retroperitoneal myxomas. A brief review of the related literature was also carried out.
ABSTRACT
OBJECTIVE: To evaluate the clinical and computed tomographic (CT) features in the patients with COVID-19 pneumonia confirmed by the real-time reverse transcriptase polymerase chain reaction (rRT-PCR) amplification of the viral DNA from a sputum sample. MATERIAL AND METHODS: Clinical information and CT findings of a total of 14 patients with COVID-19 infection (age range, 12-83 years; females 6) were analyzed retrospectively. The clinical information includes the history of exposure, laboratory results, and the symptoms (such as fever, cough, headache, etc.); CT findings of chest include the extension and distribution of lesion, the ground-glass opacity (GGO), consolidation, bronchovascular enlarged, irregular linear appearances, pleural effusion, and lymphadenopathy. RESULTS: Eight patients had the exposure history for recent travel to Wuhan of Hubei province (8/14, 57%), 6 had the exposure to patients with COVID-19 infection. Significant statistical differences were observed in lymphocyte percentage decreased and C-reactive protein elevated (pâ=â0.015). Seven patients had fever, 7 had cough, 2 had headache, 3 had fatigue, 1 had body soreness, 3 had diarrhea, and 2 had no obvious symptoms. In chest CT examination, 10 patients were positive (10/14, 71.43%). Among these patients, 9 had lesions involving both lungs (9/10, 90%), 8 had lesions involving 4 to 5 lobes (8/10, 80%). Most of lesions were distributed peripherally and the most significant lesions were observed in the right lower lobe in 9 patients (9/10, 90%). Nodules were observed in 5 patients (5/10, 50%); GGO, consolidation, and bronchovascular enlarged were shown in 9 patients (9/10, 90%); irregular linear appearances were revealed in 7 patients (7/10, 70%); and pleural effusions were exhibited in 2 patients (2/10, 20%). Last, no patients showed lymphadenopathy. CONCLUSION: There were some typical CT features for diagnosis of COVID-19 pneumonia. The radiologists should know these CT findings and clinical information, which could help for accurate analysis in the patients with 2019 novel coronavirus infection.
