scholarly journals Histopathological Study of Tissue Reaction to Pacemaker Electrodes Implanted in the Endocardium

2005 ◽  
Vol 72 (1) ◽  
pp. 52-59 ◽  
Author(s):  
Hiroshi Mase ◽  
Koichi Tamura ◽  
Atsushi Hiromoto ◽  
Masahiro Hotta ◽  
Saori Hotomi ◽  
...  
Keyword(s):  
Tissue Reaction ◽  
Histopathological Study ◽  
Pacemaker Electrodes

THE LIFE CYCLE OF FASCIOLOIDES MAGNA (BASSI, 1875), THE LARGE LIVER FLUKE OF RUMINANTS, IN CANADA: WITH OBSERVATIONS ON THE BIONOMICS OF THE LARVAL STAGES AND THE INTERMEDIATE HOSTS, PATHOLOGY OF FASCIOLOIDIASIS MAGNA, AND CONTROL MEASURES

1935 ◽  
Vol 12 (2) ◽  
pp. 177-215 ◽  
Author(s):  
W. E. Swales
Keyword(s):  
Life Cycle ◽  
Historical Review ◽  
Tissue Reaction ◽  
Control Measures ◽  
Histopathological Study ◽  
Intermediate Hosts ◽  
Fascioloides Magna ◽  
Larval Stages ◽  
History Of ◽  
And Control

The life history of Fascioloides magna in Canada has been elucidated, the intermediate hosts being two fresh-water gastropods, Fossaria parva (Lea) and Stagnicola palustris nuttalliana (Lea). The morphology and bionomics of the egg and larval stages are described, particular attention being given to the nonparasitic stages. The ecology of the gastropod hosts in Canada is briefly described.A histopathological study of the lesion in definitive hosts reveals that this parasite in large Bovidae causes a severe tissue reaction. The lesion in these animals is generally in the form of a closed fibrous cyst from which eggs are unable to pass, and thus the life cycle cannot be completed. In Cervidae, the cavity in the liver is connected directly with the bile duct system, and there is a free egress of ova. From these facts it is inferred that this parasitic disease can only occur in the presence of Cervidae.Laboratory animals have been artificially infested with maritae, thus extending the host records of the trematode.A brief historical review, a summary of the present knowledge of distribution and definitive hosts affected, and a description of the control measures, are included.

scholarly journals Histopathological study of cutaneous non-neoplastic lesions in punch biopsies

2021 ◽  
Vol 7 (2) ◽  
pp. 130-135
Author(s):  
Sakthidasan Chinnathambi P ◽  
Anitha Burra
Keyword(s):  
Punch Biopsy ◽  
Tissue Reaction ◽  
The Body ◽  
Reaction Pattern ◽  
Histopathological Study ◽  
Histopathological Analysis ◽  
Microsoft Excel ◽  
Cutaneous Infections ◽  
Neoplastic Lesions ◽  
Microscopic Diagnosis

Skin being the largest organ of the body, is subjected to constant environmental insults through direct and indirect targets. Non-neoplastic lesions of skin comprise a vast array of diseases, which are usually approached by pattern based method in histopathology for microscopic diagnosis. This study was undertaken with an intention to learn such diseases by a simple minimally invasive punch biopsy procedure. A 2 year retro-prospective study of 82 punch biopsies which were documented as non-neoplastic lesions of skin were studied with respect to their demographical and histopathological profile. Simple descriptive statistics was applied in Microsoft Excel software. Out of the 82 cases studied, 46(56%) were males and 36(44%) were females. Maximum number of cases (n=23) were seen in 21-30 years of age. Most prominent site of lesions biopsied were from lower limb (23 cases) with legs being the commonest among them. Cutaneous infections (n=25) was the most common clinical category, with Mycobacterial lesions as the prominent subcategory (n=16). Granulomatous reaction constituted the most common major tissue reaction pattern among other patterns with a total number of 17 cases out of 82. Panniculitis was the most common minor reaction pattern observed. The pattern based approach in routine histopathological analysis proves a valuable descriptive tool for reaching an accurate diagnosis in cutaneous non-neoplastic lesions.

Techniques For The Preparation of Tissue Samples Containing Injectable Polymer Microcapsules

1985 ◽  
Vol 43 ◽  
pp. 710-711
Author(s):  
G.E. Visscher ◽  
R. L. Robison ◽  
G. J. Argentieri
Keyword(s):  
Drug Delivery ◽  
Drug Delivery Systems ◽  
Gastrocnemius Muscle ◽  
Degradation Process ◽  
Delivery Systems ◽  
Tissue Reaction ◽  
Electron Microscopic ◽  
Tissue Samples ◽  
Injectable Polymer ◽  
Microscopic Techniques

The use of various bioerodable polymers as drug delivery systems has gained considerable interest in recent years. Among some of the shapes used as delivery systems are films, rods and microcapsules. The work presented here will deal with the techniques we have utilized for the analysis of the tissue reaction to and actual biodegradation of injectable microcapsules. This work has utilized light microscopic (LM), transmission (TEM) and scanning (SEM) electron microscopic techniques. The design of our studies has utilized methodology that would; 1. best characterize the actual degradation process without artifacts introduced by fixation procedures and 2. allow for reproducible results.In our studies, the gastrocnemius muscle of the rat was chosen as the injection site. Prior to the injection of microcapsules the skin above the sites was shaved and tattooed for later recognition and recovery. 1.0 cc syringes were loaded with the desired quantity of microcapsules and the vehicle (0.5% hydroxypropylmethycellulose) drawn up. The syringes were agitated to suspend the microcapsules in the injection vehicle.

A Computerized Coding System for Processing Basic Histopathological Changes – Application to Vascular Pathology

1986 ◽  
Vol 25 (03) ◽  
pp. 139-142 ◽  
Author(s):  
A. Mauriello ◽  
Y. Sambuy ◽  
E. Bonanno ◽  
A. Orlandi ◽  
G. Palmieri ◽  
...  
Keyword(s):  
Vascular Wall ◽  
Final Diagnosis ◽  
Vascular Pathology ◽  
Histopathological Study ◽  
Coding System ◽  
Histopathological Changes ◽  
Histological Changes ◽  
Pathological Conditions ◽  
Computer Based ◽  
Sufficient Space

SummaryAmong the numerous existing computer-based systems for processing pathological data, none contains sufficient space for encoding data on the basic cytological or histological changes of a certain organ or tissue, upon which the final diagnosis is based.An “analytical record” was constructed listing all the basic changes that can be encountered in the various pathological conditions of the vascular wall. The data collected on the “analytical record” were coded by means of an alphanumeric code and stored in an Apple II 48 K minicomputer.The advantages of this system include the computerization of the data by non-specialized personnel and the possibility to’ quantitatively analyze the histocytopathological parameters used for diagnosis in vascular pathology. This coding system may easily be adapted, with minor modifications, to the histopathological study of other organs and tissues.

Evaluation of Breast Lumps by Ultrasound and Correlation with Histological Findings

2020 ◽  
Vol 23 (1) ◽  
pp. 10-12
Author(s):  
Nelema Jahan ◽  
Md. Mamunur Rahman ◽  
Mohammad Shahidul Alam ◽  
Md Saiful Islam
Keyword(s):  
Histopathological Examination ◽  
Breast Diseases ◽  
Histopathological Study ◽  
Common Symptom ◽  
Breast Lump ◽  
Histopathological Findings ◽  
Malignant Breast ◽  
Breast Lumps ◽  
One Year ◽  
A Prospective Study

Background: A breast lump is the most common symptom associated with both benign and malignant breast diseases. Therefore, a distinction of benign from malignant lump is of importance for proper management. Though a definitive diagnosis is possible with imaging for all the lesions, histopathological study is proven essential for confirming the diagnosis. Objective: The objective of this study was to evaluate the role of USG and histopathological findings of different breast lump in diagnosis and their comparison. Methods: A prospective study was conducted over a period of one year from January 2017 to December 2017. A total of 116 patients were included in this study. All breast lumps underwent surgery and the ultrasound findings of these lumps were compared with the histopathological findings. Data were collected from these patients by a preformed questionnaire and finally the data were analyzed. Results: Out of 116 patients only 21 cases were reported as malignant in ultrasound report but histopathology revealed 31 malignant patients. On histopathological examination 10 benign cases turned out to be malignant. Conclusion: The present study was undertaken to evaluate in diagnosing breast mass lesions individually by ultrasound and compared with histopathology for definitive management of a patient. Journal of Surgical Sciences (2019) Vol. 23 (1) : 10-12

A histopathological study on human cysticercosis

1978 ◽  
Vol 16 (2) ◽  
pp. 123 ◽  
Author(s):  
Hyun Sook Chi ◽  
Je Geun Chi
Keyword(s):  
Histopathological Study
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