Search results for “Histology

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11 articles

Histologic and Histomorphometric Evaluation of Implant Osseointegration of a Dental Implant Three Years in Function Removed Due to Abutment Fracture

Apr 2026 DOI 10.14302/issn.2473-1005.jdoi-26-6170
Y. S. Lee CameronCorresponding author

For the edentulous patient, dental implant therapy is the accepted treatment to replace one or more missing teeth as implant survival rates are greater than 90%. Unfortunately, surgical removal of dental implants occurs for a variety of reasons. As human studies are limited, this case report provides an opportunity to evaluate the peri-implant characteristics in a dental implant removed from a patient using histology. In our patient, the implant was removed three years after completion of the prosthetic phase due to fracture of the abutment that could not be removed from the implant. Histological examination of the implant revealed mature lamellar bone in direct contact with the implant surface. Histomorphometric evaluation revealed a bone-to-implant contact (BIC) of 73.6%.

Immunotherapy Usage Has Not Increased Sub-Lobar Pulmonary Resections Despite Reduced Pneumonectomies

Feb 2026
Singhal SunilCorresponding author

Objective The landscape of non-small cell lung cancer (NSCLC) has changed due to liberalized utilization of computed tomography, developments in immunotherapy and targeted treatments, and guidelines encouraging sublobar resections. We analyzed the implications of these advances for surgical procedures over a 16-year period. Methods The National Cancer Database was used to identify NSCLC incident cases from 2004 to 2020. Histology, stage, grade, and treatment were analyzed using descriptive statistics and logistic regression. Results 2,028,553NSCLC patients were identified. Each year was associated with an increase in Stage I for NSCLC (OR1.05, 95%CI 1.05-1.05) and histological subtypes (adenocarcinoma: OR1.03, 95%CI 1.03-1.04; squamous: OR1.02, 95%CI 1.02-1.02; neuroendocrine: OR1.11, 95%CI 1.11-1.12), with no change in adenosquamous histology. A similar increase was observed for well- or moderately-differentiated histology (OR1.04, 95%CI 1.04-1.04). The proportion of patients receiving chemotherapy decreased (OR0.98, 95%CI 0.98-0.98), while more patients were treated with immunotherapy or targeted therapy, including an increase of 14% using immunotherapy or targeted therapy as first-line treatment. There was a decrease in the likelihood of receiving pneumonectomy (OR 0.91, 95%CI 0.91-0.91). Despite guidelines advocating sublobar resections, these procedures only increased by 1.1% per year. Conclusions Over the 16-year study period, there was a significant trend towards diagnosis of Stage I NSCLC. The most pronounced change in treatment patterns has been more patients receiving immunotherapy and less chemotherapy. Despite a promising decrease in pneumonectomies, the frequency of sublobar resections remains stagnant, indicating limited uptage in current practice.

Thyroid Cancer Open Access

Retrospective Evaluation of Well Differentiated Thyroid Cancer Treatment Outcomes: 50 year experience at the University of Puerto Rico

Dec 2025 DOI 10.14302/issn.2574-4496.jtc-25-5497
Silva FriedaCorresponding author

Our study gathered information on the diagnosis, treatment, and long-term outcome in adult and pediatric Hispanic patients with Well Differentiated Thyroid Cancer. Methods We performed a retrospective review of the clinical and imaging nuclear medicine records of cases of WDTC evaluated and treated in the Nuclear Medicine CLINICc. Evaluation included the clinical PROFILE, histology, radioiodine (RAI) therapies and treatment response, long-term outcome and survival. The data was ASSESED using the 2015 ATA Risk level guidelines and recommendations. Results Three hundred eleven cases were reviewed, 81% females, 19% males, median age of 41 years. Eleven percent (34 patients) of the patients were in the pediatric group and 49% were between 16-45 years. The tumor histology was 60.5% Papillary, 28.2% Papillary-Follicular variant and 11.3% Follicular type. All patients had a total thyroidectomy. A total of 287 (92%) of the patients were treated with RAI. The median RAI dose was 128 mCi. Patients in the low risk group received a dose range of 25-105 mCi, 73 cases in the intermediate RISK group received 106-160mCi and 104 cases in the high-risk group received doses greater than 160 mCi. The overall median cumulative dose was 151 mCi (55-926 mCi). Annual follow up was done in all cases , WITH A median follow-up OF 5-10 years. Residual functioning tissue in the neck was found in 52% of the cases by US and/or RAI imaging. of those, 43% belonged to the low risk group, while 57% were in the intermediate and high-risk groupS. The mean treatment dose received by those with persistent functional thyroid tissue in the neck was 157 mCi. Recurrent disease was found in 15% of the patients, 85% of them belonged to the intermediate and high-risk GROUPS. Forty-seven percent of the patients with recurrent disease had residual disease. Conclusion We believe ablative and/or adjuvant RAI treatment early in the disease is important to decrease residual thyroid tissue and/or residual disease, and to improve disease-free survival. We recommend total thyroid surgery in all tumors above 1 cm, post-operative evaluation with RAI Whole Body (with 123-I or 131-I), planar and SPECT/CT imaging and RAI ablation to remnant tissue. Follow-up post treatment evaluation is also recommended.

Histo-Morphological Effect of The Small, Large Intestines and Stomach of Animal Models Treated With Aqueous Extract of Abelmoschus Esculentus

Nov 2022 DOI 10.14302/issn.2641-4538.jphi-22-4235
E. Obeten KebeCorresponding author Department of Human Anatomy, Faculty of Biomedical sciences, Kampala International university, Uganda

This study investigates the effect of Aqueous extract of abelmoschus esculentus on the microanatomy of the small, large intestine and stomach and the body weight of Wister rats. Twenty-one adults male wistar rats weighing between 100-120 grams were assigned into three groups consisting of seven rats each; Group A (control), Group B (low dose), and Group C (high dose). The rats in the control group were fed with fed with feed and water only while the rats in groups B and C were treated with 0.1mg/kg body weight and 3.0mg/kg body weight of abelmoschus esculentus respectively for 14 days. At the end of administration, the final weights of all rats were recorded before sacrifice using cervical dislocation and the small, large intestine and the stomach were harvested, processed and stained using H&E stain. The results were revealed as significant (p<0.05) increased in the mean body weight compared with the weight in the control groups and experimental groups. The treated animal groups revealed increased cellularity, focal metaplasia of the mucosal cells with villous disruption in the small intestine and dysplasia of the mucosal with loss of epithelial shape in large intestine. The stomach histology showed gastric pits with goblet cells smooth muscles layer and surface epithelium in the control group. Sections from the low dose treated group showed deep epithelical gastric pit areas with marked depletion of pits and goblet cells while the high dose treated group revealed dysplasia of gastric pits, goblet cells and smooth muscles appear mildly eroded.

Primary Breast Sarcoma

Oct 2022 DOI 10.14302/issn.2641-5518.jcci-22-4323
Y. Fernando GracieuxCorresponding author Consultant, Section of Medical Oncology-Department of Internal Medicine, University of the Philippines-College of Medicine Philippine General Hospital, Manila

Introduction Primary sarcomas of the breast are <0.1% of all malignant tumours of the breast. To date, there are 13 major breast sarcoma series in English literature. This study adds to these series characterizing primary breast sarcoma among Philippine patients. Methods All breast biopsies from the pathology records of the University of the Philippines-Philippine General Hospital (UP-PGH) were searched for breast sarcoma cases from January 2000 to December 2010. Metaplastic carcinomas and phyllodes tumors were excluded. Results There were 52 patients (45 female, 7 male) ranging in age 25-83 years (median 46 years). Majority had lump, ten cases with pain. No history of previous cancer was given. No history of prior radiation was found. Histopathological diagnoses were spindle cell sarcoma (n=13), fibrosarcoma (n=6), liposarcoma (n=6), MPNST (n=5), stromal sarcoma (n=5), angiosarcoma (n=4), MFH (n=4), leiomyosarcoma (n=3), rhabdomyosarcoma (n=3), chondrosarcoma (n=2), and synovial sarcoma (n=1). Tumors were with grade 1 (n=18), grade 2 (n=8), and grade 3 (n=10). Necrosis was noted in 6 cases. Simple mastectomy was done in 19 cases (37%), MRM in 31 cases (59%), while 2 far advanced had no surgery (3%). None had adjuvant radiotherapy or chemotherapy. The duration of follow-up for 45 patients ranged from 1 – 117 months, excluding those who were lost to follow-up. All 15 deaths were due to progressive disease. Recurrences were observed in 9 patients. The disease-free survival (DFS) and overall survival (OS) was 73%and 75%, respectively. On multivariate analysis, DFS and OS were significantly correlated with size (HR=113.63; p=0.019 and HR=77.36; p=0.037), grade (HR=20.73 ; p=0.003andHR= 39.57; p= 0.004), and having a histology of angiosarcoma (HR=35.20 ; p=0.005and HR= 50.74; p=0.007), respectively. Conclusion Sarcoma remains an important clinical entity among primary breast cancers.

Beneficial Impacts of Solanum aethiopicum L. in Diabetes Control

May 2022 DOI 10.14302/issn.2379-7835.ijn-22-4170
Michael Chukwudike Anyakudo MagnusCorresponding author Endometabolic and Nutrition Research Unit, Department of Physiology, Faculty of Basic Medical Sciences, University of Medical Sciences, P.M.B 536, Laje Road, Ondo City, Ondo State, Nigeria.

Garden egg nutritional values are numerous. However, few nutritional and epidemiological data exist on the impacts of garden egg consumption on diabetes control. In this experimentally-control designed nutritional study, the effects of scarlet garden egg species (Solanum aethiopicum L.) on lipoglycemic profile, weight control and, pancreas histoarchitecture in diabetic male Wistar rats were examined. Twenty-One adult male Wistar rats inducted with diabetes were randomly categorized into three groups (n = 7, each): Diabetic control (DC); Diabetic treated with aqueous extract of garden egg (DEE) and Diabetic fed with garden egg-supplemented diet (DSE). Animals were fed for six weeks according to the experimental design. Glycemic status and body weights were assessed twice weekly while lipid analysis was conducted at the entry and 6th week of the study. Oral glucose tolerance (OGT) test was conducted. Gross analysis and tissue histology of the pancreas were assessed by Hematoxylin and Eosin (H&E) staining technique. Statistical analysis was done using analysis of variance, and the results were expressed as mean ± S.E.M. at P < 0.05. Garden egg reduced mean body weight gain (DSE: 14.53%; DEE: 10.58%; P value = 0.04) and decreased blood glucose concentrations (DEE: 37.33%; DSE: 18.68%; P = 0.03) with corresponding improved lipid profile, glycemic tolerance and control (DEE > DSE) and, preserved pancreas histoarchitecture in diabetic Wistar rats. Solanum aethiopicum (garden egg) consumption (as fresh fruit or supplemented diet) preserves pancreatic tissue histoarchitecture and improves lipoglycemic profile and weight control in diabetic Wistar rats.

Extraosseous Plasmacytoma of Thyroid Arising in Hashimoto’s Thyroiditis

Sep 2020 DOI 10.14302/issn.2372-6601.jhor-20-3552
Qing XinCorresponding author Department of Pathology, Harbor-UCLA Medical Center, 1000 West Carson Street, Torrance, CA 90502, USA

Plasma cell neoplasms of the thyroid gland are uncommon. They may occur either as a primary extraosseous (extramedullary) plasmacytoma or as secondary involvement by multiple myeloma (MM). Here, we report the case of a 62-year-old female, presenting with goiter and Hashimoto’s thyroiditis, in whom the histologic diagnosis of extraosseous plasmacytoma was unexpected. Histology of the total thyroidectomy specimen showed a diffuse infiltration of well-differentiated plasma cells against a background of Hashimoto’s thyroiditis. By immunohistochemistry, the majority of the plasma cells are positive for IgG heavy chain and kappa light chain (kappa:lambda ratio was about 6-7:1). PCR analysis of the immunoglobulin heavy and kappa chain (IGH, IGK) gene rearrangements showed clonal IGH and IGK gene rearrangements. MM was ruled out by lack of MM-related end organ damage and negative serum protein electrophoresis, immunofixation, and bone marrow biopsy. Although rare, plasmacytoma should be considered in patients presenting with enlarging thyroid gland and autoimmune thyroiditis. Histologic diagnosis and differential diagnoses are comprehensively discussed.

Effects of Aluminium Sulphates on Weight and Structure of Adrenal Gland of Adult Wistar Rats

Jun 2020 DOI 10.14302/issn.2577-2279.ijha-20-3403
V. K AbodunrinCorresponding author Department of Anatomy and Cell Biology, Faculty of Basic Medical Sciences, Obafemi Awolowo University (OAU)

This study evaluated the effects of aluminum sulphate exposure on the histology of adrenal gland of Wistar rats. Thirty adult Wistar rats were used for this study. The Wister rats were divided into three groups; group A was the control animals and tagged C, group B animals received 10g of alum dissolved in 1000cm3 of distilled water and were tagged T1, group C animals received 50g of alum dissolved in 1000cm3of distilled water and were tagged T2, via drinking water for duration of four weeks. Twenty-four hours after the last administration, the rats were sacrificed by cervical dislocation. The adrenal gland was excised and preserved in 10 % formosaline after which it was routinely processed for hematoxylin and eosin staining (H&E). Histological observations showed normal cell distribution in the control group but treated group revealed evidences of cellular obliteration& hemorrhagic necrosis. The results obtained from this study suggest that aluminum sulphate has a damaging effect on the structure of the adrenal gland.

Treatment of a Severe Pediatric Lyell Syndrome with Amniotic Membrane: Case Report and Histological Findings

Dec 2018 DOI 10.14302/issn.2640-6403.jtrr-18-2442
Pontini A.Corresponding author Department of Neuroscience Specialties, Plastic Reconstructive Surgery and Burn Unit – Padova University Hospital

Background: Lyell Syndrome (TEN, Toxic epidermal necrolysis) represents a medical emergency particularly in pediatric patients in whom the massive skin damage can quickly lead to multi-organ dysfunction and death. Prompt restoration of the physiologic mucosal/cutaneous barrier is mandatory. The use of amniotic membranes has been described in the treatment of ophthalmic Lyell Syndrome, but its use has not yet been adopted for the management of larger cutaneous wounds. Study Hypothesis: Here we report the use of amniotic membranes in a pediatric case of severe Lyell Syndrome with complete skin surface, ocular and mucosal involvement with life threating presentation. Methods: A 7-year old female was admitted to our Burn Centre for severe cutaneous/mucosal exfoliation (100% Total body surface area, TBSA) as a result of an adverse reaction to ibuprofen administration. Supportive fluid administration, cardiac-pulmonary assistance and pain management were complemented by serial grafting of amniotic membranes on all affected areas to provide coverage of the exfoliated skin/mucosa. Biopsies were obtained to monitor histological skin changes. Results: The patient showed an excellent response to amniotic membrane treatment, with rapid restoration of mucosal and cutaneous layers in the grafted areas. This resulted in a decreased need for dressing changes, avoidance of additional surgeries and a reduced dependence on supportive therapy. Lower pain levels than usually expected led to a reduced need for narcotic pain medications and allowed for early physical rehabilitation and a short hospital stay. Histology confirmed evidence of topical immune-modulation in treated areas (reduction of inflammatory infiltrate). Conclusion: As we tested in numerously TEN and burn pediatric injuries Amniotic membranes with their regenerative and immune-modulatory effects may represent an life saving treatment even in the worst cases of pediatric Lyell syndrome.

Early Detection of Post-transplant Lymphoproliferative Disorder by Head and Neck Manifestations

Dec 2016 DOI 10.14302/issn.2372-6601.jhor-16-1070
Sisi TianCorresponding author

Introduction: Post-transplant lymphoproliferative disease (PTLD) is a collection of conditions associated with abnormal proliferation of lymphoid tissues in patients after solid organ transplants (SOT). Its clinical presentations are quite variable and non-specific. Otolaryngological signs and symptoms, manifested as adenotonsillar hypertrophy or cervical lymphadenopathy, may guide to early detection and treatment. Methods: We conducted a retrospective review of all pediatric SOT recipients with the diagnosis of PTLD, age 0-18, between 2005 and 2014 at the Loma Linda University Children’s Hospital. The patient’s age, type of organ transplant, immunosuppression, head and neck signs and symptoms, imaging modality, EBV status, histology as well as treatment regimen information were recorded. Results: A total of 21 pediatric patients were included in this retrospective review with a history of solid organ transplant and a diagnosis of PTLD. The most commonly associated type of transplanted organ is heart (57.1%), followed by kidneys (33.3%) and liver (9.5%). Neck swelling (28.6%) was the main head and neck complaint while one patient developed upper airway obstruction with respiratory distress. Cervical lymphadenopathy was found in 66.7% and tonsillar hypertrophy in 9.5% of the patients. Monomorphic PTLD (46.2%) was the most common pathological diagnosis, followed by reactive hyperplasia (30.8%), Hodgkin lymphoma (15.4%) and polymorphic PTLD (7.7%). Majority of the PTLD patients were treated with rituximab and cyclophosphamide combination therapy with and without prednisone. Conclusion: Adenotonsillectomy and cervical lymph node biopsies are easy to perform with low complication rates. They serve an important role in the armamentarium in the early detection of PTLD in its early stage, allowing prompt treatment and prevention of further progression.

Thyroid Cancer Open Access

Evaluation of Household Radiation Exposure and Safety after Ambulatory Radioiodine Ablation Therapy

Aug 2016 DOI 10.14302/issn.2574-4496.jtc-16-1129
Silva FriedaCorresponding author Nuclear Medicine Section, Radiological Sciences Department, School of Medicine, University of Puerto Rico

Objective: Radiation exposure to the general public and patients undergoing diagnostic or therapeutic procedures is of great concern, especially to the medical community. Revision of Nuclear Regulatory Commission rules several years ago yield new recommendations for the administration of therapeutic doses of 131-Iodine that included the release criteria. The guidelines for ambulatory treatment included patient education and radiation safety measures to minimize exposure and contamination. Our goal in this study was to evaluate patient compliance with the radiation safety instruction protocols given to them before the therapeutic dose and monitor radiation levels in different house areas at different times after an ablation therapy of 3700MBq or more. Method: Patients with well differentiated thyroid cancer being evaluated for ablation therapy with 131-Iodine were invited to participate. A thorough set of instructions on radiation protection were given verbally and in writing. Patient house was assessed with a Geiger Muller detector at 24 and 72 hours or above to obtain direct radiation levels in several areas. Patient radiation levels were also monitored. Results: A total of 12 patients have been included, 11 females and 1 male, median age was 53 years. Tumor histology was 10 papillary, 2 papillary-follicular variant and 1 follicular carcinoma; 92% of the cases were T1, N0, M0. Home location was urban in 77% and rural in 33% of the patients; 67% of the patients had an educational level between 9-12 grade. Radioiodine doses range from 3441-5994MBq. None of the patients had a relatives or companion in the house. Mean patient exposure 24 hours after the dose at 1 meter was 12mrem/hr, 0.120mSv/h; this represented a retained dose of 2181MBq (59mCi). Only one patient (T1, Nx, M1) had an exposure rate at 1 meter of 100mrem/hr (1mSv/hr) at 24 hours. At 72 hours the exposure changed to 4mrem/hr, 0.040mSv/hr, retained dose of 725.2MBq (19.6mCi). Higher exposure rates in the house were at 24 hours in the bed and pillows (7mrem/hr), kitchen trash (13mrem/hr) and bathroom sink (8mrem/hr). The exposure rates at the toilet and shower were similar (3-4mrem/hr). There was a significant decreased in the exposure rate at 72 hours in all house areas. Patients with the higher exposure rates were those with metastatic disease, and small living facilities. Patients living in rural or urban location had no difference in the exposure rate. The educational levels were not related either to the exposure rate. Conclusion: Patient compliance with radiation protection instructions and Nuclear Regulatory Commission release criteria was good. Radiation exposure levels in the house areas are safe. Special instructions must be design to minimize contamination in the bathroom and kitchen Caution is recommended in the release of patients with extensive metastatic disease and doses of 5920MBq or more.

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