Clinical characteristics of patients with septated loculations of pyogenic liver abscesses / 中华肝胆外科杂志

Objective:To compare clinical features of patients with pyogenic liver abscesses with and without septated lobulations.Methods:Patients diagnosed to have pyogenic liver abscesses who were treated in our hospital from January 2011 to March 2021 were enrolled into this retrospective study. There were 203 males and 132 females, with age of (56±14) years old. The patients were divided into two groups by findings on computed tomography and ultrasound into the septated lobulation group ( n=68) and the non-septated lobulation group ( n=267). The clinical data of these patients were compared. Results:In the septated lobulation group, the neutrophil count was 9.17(5.97, 12.33)×10 9/L and the TBil was 17.65(11.92, 27.84) μmol/L. These were significantly higher than the corresponding figures of 7.81(5.42, 10.81)×10 9/L, 12.90(9.00, 19.68) μmol/L, respectively in the non-septated lobulation group ( P<0.05). The difference in the maximum diameters of the septated lobulation group was also significantly larger than the non-septated lobulation group ( P=0.032). Additionally, pus culture showed the proportion of Klebsiella pneumoniae positive patients in the septated lobulation group was significantly higher than that in the non-septated lobulation group [41.18% (28/68) vs. 25.84% (69/267), P=0.013]. The use of fluoroquinolones in patients in the septated lobulation group was higher than that in the non-septated lobulation group [20.59% (14/68) vs. 10.11% (27/267), χ 2=5.54, P=0.019]. Conclusion:Compared to patients without septated lobulations, those with septated lobulations had a larger diameter of abscesses, a higher positive rate of Klebsiella pneumoniae on pus culture and a higher proportion of patients receiving fluoroquinolones.

A Study On Histogenesis Of Thymus In Human Foetuses

Background: The Thymus is a lymphatic organ that exhibits certain unique structural features. The supportingreticular stroma arises from endodermal epithelium and produces a cellular reticulum. Lymphocytes are derivedfrom haematopoietic stem cells.Materials and methods: The present study was carried out with 20 human foetuses of gestational age varyingfrom 10 to 31weeks in the Department of Anatomy,Thanjavur medical college, Thanjavur. Histogenesis of variouscomponents of thymus was studied after staining with Hematoxylin and Eosin.Results: Lymphocytes appear by 10th week.Lobulation started appearing by 12th week and completed by 15thweek.Corticomedullary differentiation started by 15th week, and become more distinct by18th week. Blood vesselswere seen by 10th week and macrophages by 12th week. Hassall’s corpuscles appeared by 15th week. The numberand size of HC increased between 18 and 24 weeks.Conclusion: Precise knowledge of the histogenesis and histodifferentiation of the various components of thenormal thymus is essential in analyzing the different pathologies like thymic neoplasia, myasthenia gravis andcertain other autoimmune disorder

Lobulación pulmonar de la rata blanca (Rattus norvegicus albinus) / Pulmonary lobulation of the white rat (Rattus norvegicus albinus)

La rata de laboratorio (Rattus norvegicus albinus), ha sido usada como modelo biológico para investigación, desde hace mucho tiempo. Por lo cual conocer su anatomía, en particular lo que dice relación con la lobulación pulmonar, resulta de utilidad para eventuales aplicaciones en las ciencias biomédicas. Para tal propósito, se utilizaron 10 ratas machos de la cepa Wistar, las que luego de ser sacrificadas por sobredosis de tiopental sódico intraperitoneal y antes de ser extraídos los pulmones de la cavidad torácica, a 7 de ellas, se les inyectó formalina al 10 % intratraqueal y a las otras 3, acrílico dental autocurable, para posteriormente, colocar el tejido en una solución KOH, para su corrosión. Es así como, de acuerdo a la arborización bronquial observada, se evidenció en el pulmón derecho 4 lóbulos (craneal, medio, caudal y accesorio) y 1 sólo lóbulo no dividido en el pulmón izquierdo.

The laboratory rat (Rattus norvegicus albinus) laboratory rat has long been used as a biological model for research. Therefore knowledge of its anatomy, particularly as related to pulmonary lobulation is useful for any applications in the biomedical sciences. For this reason, 10 male rats of the Wistar strain were used. After being sacrificed by overdose of intraperitoneal thiopental and before extracting the lungs from the thoracic cavity, 7 of them were injected 10 % formalin intratracheal and the other 3, self-curing dental acrylic, subsequently placing the tissue in a KOH solution for corrosion. Thus, according to the observed bronchial tree, 4 lobes were observed in the right lung (cranial, middle, caudal and accessory) and only one lobe not divided in the left lung.

Fetal Lobulation with Hydronephrosis / 대한비뇨기과학회지

A case of fetal lobulation with huge hydronephrosis due to aberrant vessel, found in 15 year old boy was reported.