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Jeican II, Inișca P, Gheban D, Anton V, Lazăr M, Vică ML, Mironescu D, Rebeleanu C, Crivii CB, Aluaș M, Albu S, Siserman CV. Histopathological Lung Findings in COVID-19 B.1.617.2 SARS-CoV-2 Delta Variant. J Pers Med 2023; 13:jpm13020279. [PMID: 36836513 PMCID: PMC9961426 DOI: 10.3390/jpm13020279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 01/29/2023] [Accepted: 01/30/2023] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND The Delta variant (Pango lineage B.1.617.2) is one of the most significant and aggressive variants of SARS-CoV-2. To the best of our knowledge, this is the first paper specifically studying pulmonary morphopathology in COVID-19 caused by the B.1.617.2 Delta variant. METHODS The study included 10 deceased patients (40-83 years) with the COVID-19 Delta variant. The necrotic lung fragments were obtained either by biopsy (six cases) or autopsy (four cases). Tissue samples were subjected to virology analysis for identification of the SARS-CoV-2 variant, histopathology, and immunohistochemistry (anti-SARS coronavirus mouse anti-virus antibody). RESULTS Virology analysis identified B.1.617.2 through genetic sequencing in eight cases, and in two cases, specific mutations of B.1.617.2 were identified. Macroscopically, in all autopsied cases, the lung had a particular appearance, purple in color, with increased consistency on palpation and abolished crepitations. Histopathologically, the most frequently observed lesions were acute pulmonary edema (70%) and diffuse alveolar damage at different stages. The immunohistochemical examination was positive for proteins of SARS-CoV-2 in 60% of cases on alveolocytes and in endothelial cells. CONCLUSIONS The histopathological lung findings in the B.1.617.2 Delta variant are similar to those previously described in COVID-19. Spike protein-binding antibodies were identified immunohistochemically both on alveolocytes and in the endothelial cells, showing the potential of indirect damage from thrombosis.
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Affiliation(s)
- Ionuț Isaia Jeican
- Department of Anatomy and Embryology, Iuliu Hatieganu University of Medicine and Pharmacy, 400006 Cluj-Napoca, Romania
| | - Patricia Inișca
- Department of Pathology, County Emergency Hospital Deva, 330084 Deva, Romania
| | - Dan Gheban
- Department of Pathology, Iuliu Hatieganu University of Medicine and Pharmacy, 400006 Cluj-Napoca, Romania
- Department of Pathology, Emergency Clinical Hospital for Children, 400370 Cluj-Napoca, Romania
| | - Vlad Anton
- Department of Medical Biochemistry, Iuliu Hatieganu University of Medicine and Pharmacy, 400349 Cluj-Napoca, Romania
| | - Mihaela Lazăr
- Viral Respiratory Infections Laboratory, Cantacuzino National Military-Medical Institute for Research and Development, 050096 Bucharest, Romania
| | - Mihaela Laura Vică
- Institute of Legal Medicine, 400006 Cluj-Napoca, Romania
- Department of Cell and Molecular Biology, Iuliu Hatieganu University of Medicine and Pharmacy, 400349 Cluj-Napoca, Romania
| | | | - Codrin Rebeleanu
- Department of Legal Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 400006 Cluj-Napoca, Romania
| | - Carmen Bianca Crivii
- Department of Anatomy and Embryology, Iuliu Hatieganu University of Medicine and Pharmacy, 400006 Cluj-Napoca, Romania
| | - Maria Aluaș
- Department of Oral Health, Iuliu Hatieganu University of Medicine and Pharmacy, Victor Babeș Str., No. 15, 400012 Cluj-Napoca, Romania
- Correspondence: (M.A.); (S.A.)
| | - Silviu Albu
- Department of Head and Neck Surgery and Otorhinolaryngology, University Clinical Hospital of Railway Company, Iuliu Hatieganu University of Medicine and Pharmacy, 400015 Cluj-Napoca, Romania
- Correspondence: (M.A.); (S.A.)
| | - Costel Vasile Siserman
- Institute of Legal Medicine, 400006 Cluj-Napoca, Romania
- Department of Legal Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 400006 Cluj-Napoca, Romania
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Ștefan RA, Ștefan PA, Mihu CM, Csutak C, Melincovici CS, Crivii CB, Maluțan AM, Hîțu L, Lebovici A. Ultrasonography in the Differentiation of Endometriomas from Hemorrhagic Ovarian Cysts: The Role of Texture Analysis. J Pers Med 2021; 11:jpm11070611. [PMID: 34203314 PMCID: PMC8306221 DOI: 10.3390/jpm11070611] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 06/21/2021] [Accepted: 06/25/2021] [Indexed: 01/08/2023] Open
Abstract
The ultrasonographic (US) features of endometriomas and hemorrhagic ovarian cysts (HOCs) are often overlapping. With the emergence of new computer-aided diagnosis techniques, this is the first study to investigate whether texture analysis (TA) could improve the discrimination between the two lesions in comparison with classic US evaluation. Fifty-six ovarian cysts (endometriomas, 30; HOCs, 26) were retrospectively included. Four classic US features of endometriomas (low-level internal echoes, perceptible walls, no solid components, and less than five locules) and 275 texture parameters were assessed for every lesion, and the ability to identify endometriomas was evaluated through univariate, multivariate, and receiver operating characteristics analyses. The sensitivity (Se) and specificity (Sp) were calculated with 95% confidence intervals (CIs). The texture model, consisting of seven independent predictors (five variations of difference of variance, image contrast, and the 10th percentile; 100% Se and 100% Sp), was able to outperform the ultrasound model composed of three independent features (low-level internal echoes, perceptible walls, and less than five locules; 74.19% Se and 84.62% Sp) in the diagnosis of endometriomas. The TA showed statistically significant differences between the groups and high diagnostic value, but it remains unclear if the textures reflect the intrinsic histological characteristics of the two lesions.
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Affiliation(s)
- Roxana-Adelina Ștefan
- Histology, Morphological Sciences Department, “Iuliu Hațieganu” University of Medicine and Pharmacy, Louis Pasteur Street, Number 4, 400349 Cluj-Napoca, Romania; (R.-A.Ș.); (C.M.M.); (C.S.M.)
- Obstetrics and Gynecology Clinic “Dominic Stanca”, County Emergency Hospital, 21 Decembrie 1989 Boulevard, Number 55, 400094 Cluj-Napoca, Romania;
| | - Paul-Andrei Ștefan
- Anatomy and Embryology, Morphological Sciences Department, “Iuliu Hațieganu” University of Medicine and Pharmacy, Victor Babes, Street, Number 8, 400012 Cluj-Napoca, Romania;
- Radiology and Imaging Department, County Emergency Hospital, Cluj-Napoca, Clinicilor Street, Number 5, 400006 Cluj-Napoca, Romania; (C.C.); (A.L.)
- Correspondence: or
| | - Carmen Mihaela Mihu
- Histology, Morphological Sciences Department, “Iuliu Hațieganu” University of Medicine and Pharmacy, Louis Pasteur Street, Number 4, 400349 Cluj-Napoca, Romania; (R.-A.Ș.); (C.M.M.); (C.S.M.)
- Radiology and Imaging Department, County Emergency Hospital, Cluj-Napoca, Clinicilor Street, Number 5, 400006 Cluj-Napoca, Romania; (C.C.); (A.L.)
| | - Csaba Csutak
- Radiology and Imaging Department, County Emergency Hospital, Cluj-Napoca, Clinicilor Street, Number 5, 400006 Cluj-Napoca, Romania; (C.C.); (A.L.)
- Radiology, Surgical Specialties Department, “Iuliu Hațieganu” University of Medicine and Pharmacy, Clinicilor Street, Number 3-5, 400006 Cluj-Napoca, Romania
| | - Carmen Stanca Melincovici
- Histology, Morphological Sciences Department, “Iuliu Hațieganu” University of Medicine and Pharmacy, Louis Pasteur Street, Number 4, 400349 Cluj-Napoca, Romania; (R.-A.Ș.); (C.M.M.); (C.S.M.)
- Radiology and Imaging Department, County Emergency Hospital, Cluj-Napoca, Clinicilor Street, Number 5, 400006 Cluj-Napoca, Romania; (C.C.); (A.L.)
| | - Carmen Bianca Crivii
- Anatomy and Embryology, Morphological Sciences Department, “Iuliu Hațieganu” University of Medicine and Pharmacy, Victor Babes, Street, Number 8, 400012 Cluj-Napoca, Romania;
| | - Andrei Mihai Maluțan
- Obstetrics and Gynecology Clinic “Dominic Stanca”, County Emergency Hospital, 21 Decembrie 1989 Boulevard, Number 55, 400094 Cluj-Napoca, Romania;
- Obstetrics and Gynecology Clinic II, Mother and Child Department, “Iuliu Hațieganu” University of Medicine and Pharmacy, 21 Decembrie 1989 Boulevard, Number 55, 400094 Cluj-Napoca, Romania
| | - Liviu Hîțu
- Doctoral School, Iuliu Hațieganu University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania;
| | - Andrei Lebovici
- Radiology and Imaging Department, County Emergency Hospital, Cluj-Napoca, Clinicilor Street, Number 5, 400006 Cluj-Napoca, Romania; (C.C.); (A.L.)
- Radiology, Surgical Specialties Department, “Iuliu Hațieganu” University of Medicine and Pharmacy, Clinicilor Street, Number 3-5, 400006 Cluj-Napoca, Romania
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Abstract
Background and aim The study of anatomy remains the backbone of medical education in the first years. There is a constant need for educational materials that enable the assimilation of knowledge by students. The casts after human bodies have not lost the value, even in the era of virtual education. We present in this paper a museal item destined to improve the anatomy teaching. Methods Given the existence in the department of anatomy from Cluj –Napoca of an item of exceptional artistic and scientific value, we intensively searched Pubmed and Scopus, as well as by manual search of printed only documents, for all papers related to the muscle man by Brancusi created for educational purposes of anatomy students. Results This paper presents summary data from the biography of the creators of this item, the world famous sculptor Constantin Brancusi and the professor of anatomy and surgery from Bucharest Dimitrie Gerota. We also describe this item and the conditions which generated it Conclusion Teaching anatomy relies on the quality of the didactic support. The muscle man by Brancusi is a very realistic reproduction of a man, very useful for anatomical training and teaching.
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Affiliation(s)
- Dinu Iuliu Dumitrascu
- Department of Anatomy and Embryology, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Carmen Bianca Crivii
- Department of Anatomy and Embryology, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Iulian Opincaru
- Department of Anatomy and Embryology, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
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