Histopathologic evaluation system of African swine fever in wild boar infected with high (Arm07) and low virulence (Lv17/WB/Riel) isolates.

To understand the clinicopathological forms of African swine fever (ASF) in wild boar, it is crucial to possess a basic knowledge of the biological characteristics of the currently circulating ASF virus isolates. The aim of this work is to establish an accurate and comprehensive histopathologic grading system to standardize the assessment of the ASF lesions in wild boar. The study evaluated the differences between animals infected with a high virulence genotype II isolate (Arm07) (HVI) through intramuscular (IM) (n = 6) and contact-infected (n = 12) routes, alongside those orally infected with a low virulence isolate (Lv17/WB/Riel) (LVI) (n = 6). The assessment included clinical (CS), macroscopic (MS), and histopathologic (HS) scores, as well as viral loads in blood and tissues by real-time quantitative polymerase chain reaction (qPCR). Tissues examined included skin, lymph nodes, bone marrow, palatine tonsil, lungs, spleen, liver, kidneys, thymus, heart, adrenal glands, pancreas, urinary bladder, brain, and gastrointestinal and reproductive tracts. The HVI group exhibited a 100% mortality rate with elevated CS, MS, and HS values. Animals infected by contact (CS = 12; MS = 58.5; HS = 112) and those intramuscularly infected (CS = 14.8; MS = 47; HS = 104) demonstrated similar values, indicating that the route of infection does not decisively influence the severity of clinical and pathological signs. The LVI group showed a 0% mortality rate, an inconspicuous clinical form, minimal lesions (CS = 0; MS = 12; HS = 29), and a lower viral load. Histopathologic evaluation has proven valuable in advancing our comprehension of ASF pathogenesis in wild boar and paves the groundwork for further research investigating protective mechanisms in vaccinated animals.

Multiple Epidermal Inclusion Cysts of the Female Breast Coexisting With Fibroadenoma: A Case Report of an Incidental Finding.

This report discusses a case of a 27-year-old female with histopathological examination results of multiple epidermal inclusion cysts (EICs) coexisting with fibroadenoma without any involvement of breast skin. EIC should be considered as one of the differential diagnoses for benign breast lesions. Radiological evaluation, with surgical excision and histopathologic examination, remains the gold standard for the management of EIC. This report aims to increase the level of awareness on the existence of EIC in the breast parenchyma and the possibility of it coexisting with or arising from other benign breast lesions like fibroadenoma.

Protective and/or therapeutic effects of berberine in a model of premature ovarian failure induced by cyclophosphamide in rats.

Objective: We conducted a biochemical and histological evaluation of whether berberine has a protective and/or therapeutic effect in a cyclophosphamide-induced premature ovarian failure (POF) model. Materials and Methods: We divided 28 Wistar albino female rats into 4 groups [control group, POF group, cyclophosphamide (CP)+berberine (Bb) group, and POF+Bb group]. The POF model was established by intraperitoneal administration of 50 mg/kg CP on day 1 followed by 8 mg/kg/day CP dissolved in saline for the following 14 days. The CP+Bb group received Bb concurrently for two weeks with CP. The POF+Bb group received berberine for two weeks following the completion of CP administration. Left ovaries were used for histopathological evaluation and right ovaries were used for biochemical analysis [tumor necrosis factor-alpha (TNF-α), interleukin (IL)-1, IL-6 levels in tissue]. Results: Ovarian damage scoring was significantly higher in the POF group than in the other groups (p<0.005). In the POF group, primordial and primary follicle counts were the lowest, while secondary and corpus luteum counts were the highest (p<0.005). There was no significant difference between the other groups. The POF group had significantly elevated levels of TNF-α, IL-1, and IL-6 in the biochemistry results (p<0.005). Conclusion: We demonstrated that berberine could be effective in the protection and treatment of POF by reducing proinflammatory cytokines. We believe that our study can make a considerable contribution to the literature in terms of POF protection and/or treatment.

Histopathologic Analysis of Pancreaticoduodenectomy Specimen.

INTRODUCTION: Whipple's Pancreaticoduodenectomy has increasingly been used as an appropriate resectional procedure for tumors of the periampullary region which are pancreatic, periampullary, ampullary and biliary tumors. Our aim was to study the distribution and histopathologic features of these tumors and to examine local trends of periampullary neoplasms resected with a PD. METHODS: A descriptive study was conducted in the department of Pathology, Kathmandu Medical College Teaching Hospital from July 2013 to June 2016. RESULTS: Thirty five patients underwent Whipple's Pancreaticoduodenectomy procedure during a period of 36 months from July 2013 to June 2016. Malignant tumor was present in 31 (88.57%) cases where as four cases (11.43%) harboured benign lesions. Periampullary mixed carcinoma was the predominant tumor (34.28%) followed by periampullary duodenal (20%), ampullary (14.28%), pancreatic adenocarcinoma (11.42%) and distal cholangiocarcinoma (5.71%). There was no significant difference in tumor size among periampullary, ampullary, pancreatic and biliary carcinomas. Ampullary carcinomas were predominantly well differentiated (80%) where as the other tumors were mostly moderately differentiated. Lymphovascular and perineural invasion varied in different tumor types. Four pancreatic adenocarcinomas showed lymphovascular and perineural invasion. Adequate surgical margin clearance was achieved in most of the cases except in one case each of periampullary duodenal carcinoma and distal cholangiocarcinoma and two cases of pancreatic adenocarcinoma.. CONCLUSIONS: Pancreaticoduodenectomy specimen requires thorough histopathological evaluation. Pathologists should also be aware of possibility of a benign diagnosis in PD specimens which have been resected presuming malignancy based on clinical judgement and radiological data.

Does everything a surgeon takes out have to be seen by a pathologist? A review of the current pathology practice.

Histopathologic examination of surgically removed tissues and organs is an important aspect of modern hospital quality health care. Most surgical specimens deserve to be submitted for pathologic examination, which may yield valuable new information relevant for the future treatment of the patient. A small number of specimens, recognized as providing limited or no valuable clinical data during pathologic examination, may be placed on the list of specimens "exempt from submission" or those that are labeled as "for gross examination only." Guidelines written by the committees of the national regulatory organizations provide general orientation on how to deal with various specimens, but the final decision on which type of specimen to eliminate and which ones to include for pathologic examination rests on local governing and advisory bodies of each institution. Particular lists of specimens exempt from pathologic examination are best generated through a consensus agreement of clinical and laboratory physicians. Even though there is general nationwide and even international consensus on which types of specimens deserve pathologic examination and which do not, there are still discussions about the necessity of some pathologic examinations.

Cervicofacial Actinomycosis Mimicking Osseous Neoplasm: A Rare Case.

Actinomycosis is a rare chronic infectious disease caused primarily by Actinomyces israelli. Although they are normal inhabitants of the oral cavity, infection occurs when there is a breach in the mucosa allowing them access to the subcutaneous tissues. Poor oral hygiene, dental caries, recent dental extraction, oromaxillofacial trauma have been implicated as risk factors for actinomycosis. Cervicofacial actinomycosis is the most common form of this rare disease. Here, we are presenting a rare case of actinomycosis involving the parotid gland and coronoid process of mandible in a young child where diagnosis was made based on histopathological findings since the classical clinical manifestations of actinomycosis, were absent in the case.