The document discusses the difficulties in differentiating between Crohn's disease (CD) and intestinal tuberculosis (ITB) given their similar clinical, endoscopic, and histological features. Both are granulomatous diseases that can affect the intestine. While ITB is more common in India, rates of CD are increasing worldwide and also in developing countries. Making an accurate diagnosis is important as treatment approaches differ between the two conditions. Several clinical, endoscopic, radiological, and histological features are discussed that may suggest one condition over the other, but differences are often subtle. A high index of suspicion is needed to diagnose ITB in areas where it is endemic to ensure appropriate treatment.
Imaging plays an important role in diagnosis and formulating differential diagnosis in case of Solitary pulmonary nodule. It helps in differentiating and predicting benign and malignant nodules.
It discusses investigations useful in diagnosis of inflammatory bowel disease and their important findings e.g Barium enema, histopathology, a word about indeterminate colitis and followed by discussion of possible etiologies to be ruled out before diagnosing IBD
By Dr. Usama Ragab, Zagazig Faculty of Medicine
PSC incidence ranges from 0.5 to 1.25 cases/100 000.
The prevalence of the disease ranges between six and 20 cases/100 000.
Men are more likely to be affected (70%).
Prevalence of PSC may be increased in first degree relatives of PSC patients
LOWER GI HEMORRHAGE- PLAYLIST OF 6 VIDEOS
Dear Viewers,
Greetings from “Surgical Educator”.
I have made a playlist for Lower GI Hemorrhage which consists of six videos on various causes of Lower GI Hemorrhage. They are Introduction, diverticular disease, haemorrhoids, fissure-in-ano, colorectal carcinoma and inflammatory bowel disease. If you watch all these videos together you will become confident to tackle the clinical problem of Lower GI Hemorrhage. You can watch these videos in the following link: https://www.youtube.com/playlist…
Thank you for watching the videos.
Imaging plays an important role in diagnosis and formulating differential diagnosis in case of Solitary pulmonary nodule. It helps in differentiating and predicting benign and malignant nodules.
It discusses investigations useful in diagnosis of inflammatory bowel disease and their important findings e.g Barium enema, histopathology, a word about indeterminate colitis and followed by discussion of possible etiologies to be ruled out before diagnosing IBD
By Dr. Usama Ragab, Zagazig Faculty of Medicine
PSC incidence ranges from 0.5 to 1.25 cases/100 000.
The prevalence of the disease ranges between six and 20 cases/100 000.
Men are more likely to be affected (70%).
Prevalence of PSC may be increased in first degree relatives of PSC patients
LOWER GI HEMORRHAGE- PLAYLIST OF 6 VIDEOS
Dear Viewers,
Greetings from “Surgical Educator”.
I have made a playlist for Lower GI Hemorrhage which consists of six videos on various causes of Lower GI Hemorrhage. They are Introduction, diverticular disease, haemorrhoids, fissure-in-ano, colorectal carcinoma and inflammatory bowel disease. If you watch all these videos together you will become confident to tackle the clinical problem of Lower GI Hemorrhage. You can watch these videos in the following link: https://www.youtube.com/playlist…
Thank you for watching the videos.
Abdominal tuberculosis: a surgical perplexityKETAN VAGHOLKAR
Abdominal tuberculosis is one of the most challenging forms of extra pulmonary tuberculosis. The diagnosis of the disease itself poses the greatest challenge due to the variability of presentation. Clinical presentations in various forms with conflicting results on a multitude of haematological, immunological and radiological tests causes a lot of confusion in interpreting and correlating the symptoms to arrive at a diagnosis. This adds to the perplexity in surgical management of this complex disease especially in an era where AIDS has added to the problems. Having arrived at a diagnosis, chemotherapy is the mainstay of treatment. Surgery is indicated when the response to medical therapy is poor or complications supervene. Deciding the optimum procedure is again a major issue. Understanding the pathophysiology therefore is pivotal in making a value decision. The article briefly outlines the approach to this surgical perplexity.
Abdominal Tuberculosis Revisited–A single institutional experience of 72 case...iosrjce
IOSR Journal of Dental and Medical Sciences is one of the speciality Journal in Dental Science and Medical Science published by International Organization of Scientific Research (IOSR). The Journal publishes papers of the highest scientific merit and widest possible scope work in all areas related to medical and dental science. The Journal welcome review articles, leading medical and clinical research articles, technical notes, case reports and others.
Tuberculous Ileal Perforation in Post-Appendicectomy PeriOperative Period: A ...iosrjce
IOSR Journal of Dental and Medical Sciences is one of the speciality Journal in Dental Science and Medical Science published by International Organization of Scientific Research (IOSR). The Journal publishes papers of the highest scientific merit and widest possible scope work in all areas related to medical and dental science. The Journal welcome review articles, leading medical and clinical research articles, technical notes, case reports and others.
Inflammatory Bowel Disease ( Pathogensis & Steps of Diagnosis and Management) For Resident at Gastroenterology and Hepatology department at Kafrelsheikh by Dr/ Mohammed Hussien ( Assistant Lecturer).
ARTIFICIAL INTELLIGENCE IN HEALTHCARE.pdfAnujkumaranit
Artificial intelligence (AI) refers to the simulation of human intelligence processes by machines, especially computer systems. It encompasses tasks such as learning, reasoning, problem-solving, perception, and language understanding. AI technologies are revolutionizing various fields, from healthcare to finance, by enabling machines to perform tasks that typically require human intelligence.
Title: Sense of Smell
Presenter: Dr. Faiza, Assistant Professor of Physiology
Qualifications:
MBBS (Best Graduate, AIMC Lahore)
FCPS Physiology
ICMT, CHPE, DHPE (STMU)
MPH (GC University, Faisalabad)
MBA (Virtual University of Pakistan)
Learning Objectives:
Describe the primary categories of smells and the concept of odor blindness.
Explain the structure and location of the olfactory membrane and mucosa, including the types and roles of cells involved in olfaction.
Describe the pathway and mechanisms of olfactory signal transmission from the olfactory receptors to the brain.
Illustrate the biochemical cascade triggered by odorant binding to olfactory receptors, including the role of G-proteins and second messengers in generating an action potential.
Identify different types of olfactory disorders such as anosmia, hyposmia, hyperosmia, and dysosmia, including their potential causes.
Key Topics:
Olfactory Genes:
3% of the human genome accounts for olfactory genes.
400 genes for odorant receptors.
Olfactory Membrane:
Located in the superior part of the nasal cavity.
Medially: Folds downward along the superior septum.
Laterally: Folds over the superior turbinate and upper surface of the middle turbinate.
Total surface area: 5-10 square centimeters.
Olfactory Mucosa:
Olfactory Cells: Bipolar nerve cells derived from the CNS (100 million), with 4-25 olfactory cilia per cell.
Sustentacular Cells: Produce mucus and maintain ionic and molecular environment.
Basal Cells: Replace worn-out olfactory cells with an average lifespan of 1-2 months.
Bowman’s Gland: Secretes mucus.
Stimulation of Olfactory Cells:
Odorant dissolves in mucus and attaches to receptors on olfactory cilia.
Involves a cascade effect through G-proteins and second messengers, leading to depolarization and action potential generation in the olfactory nerve.
Quality of a Good Odorant:
Small (3-20 Carbon atoms), volatile, water-soluble, and lipid-soluble.
Facilitated by odorant-binding proteins in mucus.
Membrane Potential and Action Potential:
Resting membrane potential: -55mV.
Action potential frequency in the olfactory nerve increases with odorant strength.
Adaptation Towards the Sense of Smell:
Rapid adaptation within the first second, with further slow adaptation.
Psychological adaptation greater than receptor adaptation, involving feedback inhibition from the central nervous system.
Primary Sensations of Smell:
Camphoraceous, Musky, Floral, Pepperminty, Ethereal, Pungent, Putrid.
Odor Detection Threshold:
Examples: Hydrogen sulfide (0.0005 ppm), Methyl-mercaptan (0.002 ppm).
Some toxic substances are odorless at lethal concentrations.
Characteristics of Smell:
Odor blindness for single substances due to lack of appropriate receptor protein.
Behavioral and emotional influences of smell.
Transmission of Olfactory Signals:
From olfactory cells to glomeruli in the olfactory bulb, involving lateral inhibition.
Primitive, less old, and new olfactory systems with different path
MANAGEMENT OF ATRIOVENTRICULAR CONDUCTION BLOCK.pdfJim Jacob Roy
Cardiac conduction defects can occur due to various causes.
Atrioventricular conduction blocks ( AV blocks ) are classified into 3 types.
This document describes the acute management of AV block.
These simplified slides by Dr. Sidra Arshad present an overview of the non-respiratory functions of the respiratory tract.
Learning objectives:
1. Enlist the non-respiratory functions of the respiratory tract
2. Briefly explain how these functions are carried out
3. Discuss the significance of dead space
4. Differentiate between minute ventilation and alveolar ventilation
5. Describe the cough and sneeze reflexes
Study Resources:
1. Chapter 39, Guyton and Hall Textbook of Medical Physiology, 14th edition
2. Chapter 34, Ganong’s Review of Medical Physiology, 26th edition
3. Chapter 17, Human Physiology by Lauralee Sherwood, 9th edition
4. Non-respiratory functions of the lungs https://academic.oup.com/bjaed/article/13/3/98/278874
- Video recording of this lecture in English language: https://youtu.be/lK81BzxMqdo
- Video recording of this lecture in Arabic language: https://youtu.be/Ve4P0COk9OI
- Link to download the book free: https://nephrotube.blogspot.com/p/nephrotube-nephrology-books.html
- Link to NephroTube website: www.NephroTube.com
- Link to NephroTube social media accounts: https://nephrotube.blogspot.com/p/join-nephrotube-on-social-media.html
Anti ulcer drugs and their Advance pharmacology ||
Anti-ulcer drugs are medications used to prevent and treat ulcers in the stomach and upper part of the small intestine (duodenal ulcers). These ulcers are often caused by an imbalance between stomach acid and the mucosal lining, which protects the stomach lining.
||Scope: Overview of various classes of anti-ulcer drugs, their mechanisms of action, indications, side effects, and clinical considerations.
Pulmonary Thromboembolism - etilogy, types, medical- Surgical and nursing man...VarunMahajani
Disruption of blood supply to lung alveoli due to blockage of one or more pulmonary blood vessels is called as Pulmonary thromboembolism. In this presentation we will discuss its causes, types and its management in depth.
These lecture slides, by Dr Sidra Arshad, offer a quick overview of physiological basis of a normal electrocardiogram.
Learning objectives:
1. Define an electrocardiogram (ECG) and electrocardiography
2. Describe how dipoles generated by the heart produce the waveforms of the ECG
3. Describe the components of a normal electrocardiogram of a typical bipolar leads (limb II)
4. Differentiate between intervals and segments
5. Enlist some common indications for obtaining an ECG
Study Resources:
1. Chapter 11, Guyton and Hall Textbook of Medical Physiology, 14th edition
2. Chapter 9, Human Physiology - From Cells to Systems, Lauralee Sherwood, 9th edition
3. Chapter 29, Ganong’s Review of Medical Physiology, 26th edition
4. Electrocardiogram, StatPearls - https://www.ncbi.nlm.nih.gov/books/NBK549803/
5. ECG in Medical Practice by ABM Abdullah, 4th edition
6. ECG Basics, http://www.nataliescasebook.com/tag/e-c-g-basics
Factory Supply Best Quality Pmk Oil CAS 28578–16–7 PMK Powder in Stockrebeccabio
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micro teaching on communication m.sc nursing.pdfAnurag Sharma
Microteaching is a unique model of practice teaching. It is a viable instrument for the. desired change in the teaching behavior or the behavior potential which, in specified types of real. classroom situations, tends to facilitate the achievement of specified types of objectives.
Flu Vaccine Alert in Bangalore Karnatakaaddon Scans
As flu season approaches, health officials in Bangalore, Karnataka, are urging residents to get their flu vaccinations. The seasonal flu, while common, can lead to severe health complications, particularly for vulnerable populations such as young children, the elderly, and those with underlying health conditions.
Dr. Vidisha Kumari, a leading epidemiologist in Bangalore, emphasizes the importance of getting vaccinated. "The flu vaccine is our best defense against the influenza virus. It not only protects individuals but also helps prevent the spread of the virus in our communities," he says.
This year, the flu season is expected to coincide with a potential increase in other respiratory illnesses. The Karnataka Health Department has launched an awareness campaign highlighting the significance of flu vaccinations. They have set up multiple vaccination centers across Bangalore, making it convenient for residents to receive their shots.
To encourage widespread vaccination, the government is also collaborating with local schools, workplaces, and community centers to facilitate vaccination drives. Special attention is being given to ensuring that the vaccine is accessible to all, including marginalized communities who may have limited access to healthcare.
Residents are reminded that the flu vaccine is safe and effective. Common side effects are mild and may include soreness at the injection site, mild fever, or muscle aches. These side effects are generally short-lived and far less severe than the flu itself.
Healthcare providers are also stressing the importance of continuing COVID-19 precautions. Wearing masks, practicing good hand hygiene, and maintaining social distancing are still crucial, especially in crowded places.
Protect yourself and your loved ones by getting vaccinated. Together, we can help keep Bangalore healthy and safe this flu season. For more information on vaccination centers and schedules, residents can visit the Karnataka Health Department’s official website or follow their social media pages.
Stay informed, stay safe, and get your flu shot today!
2. Crohn ’ s disease (CD) and intestinal
tuberculosis are granulomatous diseases of the
intestine.
The clinical, morphological,radiologic
,endoscopic and histological features of CD
and intestinal tuberculosis are so similar that it
becomes difficult to differentiate between
these two entities.
Epstein D.Review article: the diagnosis and management of Crohn’s disease in
populations with high-risk rates for tuberculosis . Aliment Pharmacol h er
2007 ; 25 : 1373 – 88 .
3.
4. In India,intestinal tuberculosis is very
common, but CD is also being increasingly
reported from all over the country.
The natural history and response to
treatment differ.
5. Intestinal TB if wrongly treated with
immunosuppresant could flare up and
disseminate.
Empirical treatment with ATT may delay the
diagnosis of CD and may result in
complications.
ATT hepatotoxicity also possible.
6. High rates of latent tuberculosis confer a risk of
reactivation once therapy for established Crohn’s
disease is started.
7. Worldwide there is a resurgence of TB.
80 % of all new cases in 2014 occurred in
Africa, South-East Asia and Western Pacific
regions.
Increasing incidence in developed nations
since mid-1980s due to immigration,HIV
and the development of MDR TB.
Global Tuberculosis Control Report WHO 2017
8.
9. Incidence of both CD and ulcerative colitis
(UC) is increasing in the Asian Pacific
region, India, Eastern Europe and South
Africa.
In Saudi Arabia,mean annual incidence of
CD over two decades changed from 0.32 /
100,000 to 1.66 / 100,000, representing
more than a fivefold increase.
Ouyang Q,Ta n d o n R G ohK L et al. emergence of inflammatory bowel disease in
the Asian Pacific region . Curr Opin Gastroenterol
2015;21:408 – 1 3 .
10.
11. Spread occurs via
Swallowing infected sputum in cases with active
PTB.
Ingestion of contaminated milk causing bovine TB.
Hematogenous spread from active PTB, miliary TB
or silent bacteremia during the primary phase of
TB.
Direct extension from adjacent organs is very rare.
ONLY 20 – 25 % OF PATIENTS HAVE
CONCOMITANT ACTIVE PULMONARY TB
12. Abdominal tuberculosis
A l K a r a w i MA,Mo h a m e d A E,Yaswy MI et al.Protean manifestation of
gastrointestinal tuberculosis: report on 130 patient.J Clin Gastroenterol 1995;20:2 5–3 2 .
13. In a study of ITB from Hong Kong, the
ileocecal region was involved in 86 % of
patients.
Ileocecal area preferred because of
Abundant lymphoid aggregates.
Prolonged contact between bacilli and mucosa due
to physiologic stasis.
Absence of digestive activity
Article in Hong Kong medical journal =
Xianggang yi xue za zhi / Hong Kong Academy of
Medicine · September 2006 Source: PubMed
14. Crohn's disease has a predilection for the
Distal small intestine and proximal colon.
One third to one half of all patients have
disease affecting both ileum and colon.
Another one third have disease confined to
the small intestine, primarily the terminal
ileum.
There may be an increasing group with
isolated colonic disease.
Sleisenger and Fordtran's Gastrointestinal and Liver Disease Ninth Edition
15. ITB usually present with symptoms
ranging from 1 month to 1 year.
Crohn’s :from the onset of symptoms to
diagnosis is 3.3 yrs.
16. ICTB
Pain most common – 85%
weight loss in 66 %
fever in 35 – 50 %
diarrhea in only 20 % of
patients
abdominal tenderness is found
in most patients
abdominal mass, usually inthe
right lower quadrant, in 25 to
50 % of patients.
Intestinal obstruction,
perforation,abscess
CROHN’S
Abdominal pain
Weight loss, fever,growth
retardation in children
Diarrhoea
Bleeding per rectum
Perianal disease
Extraintestinal
manifestations
Abdominal mass
Intestinal obstruction,
perforation,abscess
17. Demographic features
Mean ages ( ± s.d.) of patients with CD and
intestinal tuberculosis were 36.5 ± 12.9 years and
32.8 ± 14 years P=0.1), respectively.
Both diseases have an insidious onset which may
go undiagnosed for many years.
Median duration of the disease was significantly
longer in patients with CD (53.3 P < 0.001) than in
patients with intestinal tuberculosis (23.4 months).
Clinical, endoscopic, and histological differentiations between crohn ’ s disease and intestinal
tuberculosis .Govind k.makharia.The american journal of gastroenterology volume 105 |
march 2010
18.
19. Chronic diarrhoea,bleeding PR,perianal
disease,extraintestinal involvement more seen
in Crohn’s patients.
Fever is seen in both CD and ITB, but a high-
swinging fever (>38.5 C) favours ITB in the
absence of any intra-abdominal abscess.
Abdominal pain,constipation and partial bowel
obstruction seen more in ITB pts.
Peritoneal involvement with ascites favour a
diagnosis of ITB but as it is often absent it is
not very discriminatory.
20. Routine blood counts and biochemical tests do
not help.
ESR and CRP, are too nonspecific.
Serological markers, such as (p-ANCA and c-
ANCA), and the IgA and IgG subtypes of ASCA,
had no significant diagnostic value in
discriminating between ITB and CD.These tests
should not therefore be relied upon for
distinguishing ITB from CD.
Ghoshal U C et al.Anti - Saccharomyces cerevisiae antibody is not useful to dfferentiate
between Crohn’s disease and intestinal tuberculosis in India . J Postgrad Med
2007;53:166–70 .
21.
22. The involvement of rectum,sigmoid colon ,
descending colon,ascending colon, and
jejunum was significantly more common in
patients with CD than in patients with
intestinal tuberculosis.
There was no significant difference in the
involvement of the ileocecal region, ileum
stomach, and duodenum in patients with
CD and intestinal tuberculosis.
Clinical, endoscopic, and histological differentiations between crohn ’ s
disease and intestinal tuberculosis .Govind k.makharia.The american journal
of gastroenterology volume 105 | march 2010
23.
24. Skip lesions,aphthous ulcers,linear ulcers,
superficial ulcers,cobblestoning favour
crohns disease.
Nodularity of the colonic mucosa was seen
significantly more in patients with intestinal
tuberculosis
Clinical, endoscopic, and histological differentiations between crohn ’ s disease
and intestinal tuberculosis .Govind k.makharia.The american journal of
gastroenterology volume 105 | march 2010
25.
26. Lee YJ et al. Analysis of colonoscopic findings in the differential diagnosis between
intestinal tuberculosis and Crohn’s disease. Endoscopy 2006; 38: 592–7
27. Four endoscopic features of CD
Anorectal lesions
Longitudinal ulcers
Apthous ulcers
Cobblestone appearance.
Four endoscopic features of ITB
Transverse ulcers
Pseudopolyps and scarring
Involvement of fewer than four segments
Patulous ileo-caecal valve
Positive predictive value for CD of 94.9%
and 88.9% for ITB was achieved.
30. Both conditions are characterized by
granulomatous inflammation with overlapping
histologic features.
In ITB, the classical and pathognomonic
features of caseating granulomatous
Inflammation and acid fast bacilli are present in
<30% of cases.
A positive TB culture has a poor yield of <20%
and the diagnosis is often delayed by several
weeks.
31. The importance of taking multiple biopsies
in cases of suspected ITB significantly
increases the diagnostic yield.
Biopsies should be taken from all segments
of the bowel including both endoscopically
normal and abnormal areas.
Ulcerated areas should be thoroughly
sampled (including multiple biopsies from
both the base and the edge of the ulcer)
38. Barium studies in ITB
Fleischner sign (a thickened patulous ICV combined
with a narrowed terminal ileum).
Stierlin’s sign (a rapid emptying of contrast
through a gaping ileo-ceacal valve into a shrunken
or ‘amputated’ caecum).
ere have been reports of misdiagnosing ITB as CD for as long as 7 years before the correct diagnosis was reached (3) . In China, Liu et al. has reported that up to 65 % of CD had been misdiagnosed as ITB
Although intestinal tuberculosis gets cured by appropriate anti-tuberculous drugs, CD has a remitting / relapsing or persistent course and usually stays life-long.
Symptoms and signs of ITB are nonspecific and may very much resemble CD.
Pain is attributable to inflammation, abscess, or obstruction and may be intermittent and colicky or sustained and severe..
ability of TB to involve multiple extra- pulmonary sites and associated immunological phenomena are common clinical manifestations in endemic regions
Differential diagnosis of CD and ITB poses a major challenge to pathologists.
as the diagnostic yield in
ITB is highest in these lesions
rectum is relatively spared but contains aphthoid ulcers.
Computerized tomography scans have
become an essential tool because it can show the location of the disease, but it also has the advantage of evaluating the extent of the in( ammatory process and involvement of the intestine, mesentery, peritoneum, lymph nodes, solid organs and retroperitoneal disease