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PLUMMER-VINSON SYNDROME (20 Marks)

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1. INTRODUCTION AND HISTORICAL BACKGROUND

• Henry Stanley Plummer (1874-1936) and Porter Paisley Vinson (1890-1959) at the Mayo Clinic (USA)
• Donald Ross Paterson (1863-1939) and Adam Brown-Kelly (1865-1941) in the UK - who published their findings in 1919

1. Post-cricoid dysphagia
2. Iron deficiency anemia
3. Esophageal (pharyngeal/postcricoid) webs

"Patterson-Brown-Kelly syndrome is the association of dysphagia with atrophic gastritis and iron-deficiency anaemia." - Scott-Brown's Otorhinolaryngology Head & Neck Surgery

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2. EPIDEMIOLOGY

"Improved nutrition and better prenatal care have resulted in a decline in the incidence of postcricoid carcinomas in Sweden." - Cummings Otolaryngology

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3. PATHOGENESIS / ETIOLOGY

Pathophysiology Flowchart:

1. Iron deficiency → dysfunction of iron-dependent oxidative enzymes (cytochrome oxidase)
2. Enzyme dysfunction → oxidative stress and DNA damage
3. Malfunctioning iron-dependent enzymes → myasthenic changes in swallowing muscles
4. Atrophy of esophageal mucosa → epithelial complications
5. Repeated epithelial injury → web formation in the postcricoid / upper esophageal region
6. Web acts as a mechanical barrier → progressive dysphagia

• Genetic predisposition
• Autoimmune mechanisms (association with Sjogren syndrome, rheumatoid arthritis, thyroid disease, celiac disease)
• Nutritional deficiencies (riboflavin, iron)
• Possible relationship with GERD (KJ Lee)
• Chronic mucosal irritation

"Iron deficiency anemia is the most accepted causal association. The pathogenesis of this syndrome is poorly understood." - Yamada's Textbook of Gastroenterology

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4. ANATOMY OF THE WEB

• The web is a thin mucosal shelf composed of mucosa and submucosa
• Located in the postcricoid region / anterior wall of the upper esophagus, just below the cricopharyngeal muscle
• Most commonly attached asymmetrically to the anterior wall
• The web forms an eccentric or central lumen
• Dysphagia typically occurs when luminal diameter becomes less than 12 mm (Yamada)
• Appears as smooth, thin, gray lesions on endoscopy

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5. CLINICAL FEATURES

5.1 Classic Triad (Diagnostic Triad)

1. Dysphagia - progressive, initially for solids, high (postcricoid level), may be intermittent; develops slowly
2. Iron deficiency anemia - microcytic hypochromic anemia; mean Hb ~8.2 g/dL
3. Postcricoid / upper esophageal webs - on anterior wall, best seen on videofluoroscopy

5.2 Associated Features (From Multiple Sources)

"Other features of iron deficiency anaemia - smooth tongue, angular stomatitis and koilonychias - may be seen." - Scott-Brown's

"Koilonychia describes a nail abnormality whereby fingernails or toenails are spoon-shaped and brittle. Glossitis presents as erythematous plaques of the tongue, sometimes with loss of fungiform papillae. Angular stomatitis (perleche) describes scale, erythema, and fissuring at the oral commissures." - Yamada's Gastroenterology

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6. DIAGNOSIS

Investigative Flow:

6.1 Hematological Investigations

• Complete Blood Count (CBC): Microcytic hypochromic anemia
• Peripheral smear: Hypochromic, microcytic RBCs, pencil cells
• Serum iron: Reduced
• Serum ferritin: Reduced (mean ~10 ng/mL in multicenter study)
• Total Iron Binding Capacity (TIBC): Elevated
• Transferrin saturation: Reduced

"Diagnosis: barium esophagram; check CBC, serum iron, ferritin levels." - KJ Lee's Essential Otolaryngology

6.2 Radiological

• Barium swallow / Videofluoroscopy (Gold Standard for web):
  • Demonstrates thin horizontal shelf on anterior wall
  • Eccentric/asymmetric filling defect in upper esophagus
  • Best diagnostic test (KJ Lee)
  • May appear as a subtle indentation on lateral view

6.3 Endoscopy (Upper GI Endoscopy/Esophagoscopy)

• Webs appear as smooth, thin, gray lesions with eccentric/central lumen
• Located most commonly on anterior wall
• Caution: Webs may be accidentally ruptured during passage of endoscope (Yamada)
• Endoscope must be introduced under direct visualization
• Mandatory to rule out postcricoid carcinoma

6.4 Additional Tests

• Thyroid function tests (TFT) - associated hypothyroidism
• Anti-tissue transglutaminase antibody (rule out celiac disease)
• Autoimmune workup (ANA, anti-Ro/SS-A for Sjogren syndrome association)

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7. DIFFERENTIAL DIAGNOSIS

"This disease is to be contrasted with pernicious anemia, which is a megaloblastic anemia with diarrhea, nausea and vomiting, neurologic symptoms, enlarged spleen, and achlorhydria." - KJ Lee's

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8. TREATMENT

8.1 Iron Supplementation (First-line)

• Oral iron (ferrous sulphate 200 mg TDS) - treatment of choice in mild-moderate cases
• Parenteral iron (IV iron sucrose) - for non-responders or severe anemia
• Iron supplementation alone can resolve dysphagia in many patients (Yamada)
• Resolves mucosal atrophy, cheilitis, glossitis, and koilonychia
• A rapid improvement in dysphagia and web after 2 weeks of iron therapy has been reported

8.2 Esophageal Dilation

• Indicated when: Dysphagia persists after iron correction, or web diameter < 12 mm
• Savary-Gilliard bougie dilators - used in 89% of cases (Alzamzamy et al., Dig Dis Sci 2025)
• Single dilation session is sufficient in 76.8% of patients (multicenter study, 2025)
• Rigid esophagoscopy: May accidentally rupture the web (therapeutic effect)
• Balloon dilation: alternative endoscopic approach
• In pediatric cases: Sequential dilation starting with smaller probes (5 mm, 7 mm, then 9 mm)

8.3 Dietary Advice

• Iron-rich diet
• Treat underlying malabsorption if present

8.4 Surveillance / Follow-up Endoscopy

• Mandatory due to risk of malignant transformation
• Regular surveillance endoscopy every 1-3 years

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9. COMPLICATIONS AND PROGNOSIS

Malignant Transformation - KEY POINT FOR EXAMS

• Type: Squamous cell carcinoma of hypopharynx (postcricoid region) / upper esophagus
• Mechanism: Chronic iron deficiency causes irreversible mucosal changes leading to malignant degeneration
• Monitoring: Close surveillance endoscopy is essential (PMID 40802140, 2025)

• Excellent with treatment - most patients need only one EGD session + iron therapy
• Koilonychia, glossitis, cheilitis resolve with iron supplementation
• No significant post-dilation complications reported in recent studies

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10. RECENT ADVANCES (2021-2026)

10.1 Multicenter Study (Alzamzamy et al., Dig Dis Sci, 2025) [PMID: 40802140]

• 56 patients across 7 centers in Egypt, India, and Iraq (2021-2024)
• Mean age 41 years; 80.5% female
• Mean Hb 8.2 g/dL; mean ferritin 10.34 ng/mL
• Celiac disease most common associated condition (10.7%)
• Savary-Gilliard bougie dilators used in 89%
• Single dilation session sufficient in 76.8%
• 7.1% developed SCC/dysplasia on follow-up

10.2 Autoimmune Associations (de Carvalho & Lerner, Immunol Res, 2022) [PMID: 34651287]

• Sjogren syndrome association established - in Sjogren's, triad of iron-deficiency anemia + dysphagia + weight loss should trigger PVS evaluation
• Autoantibodies: ANA, anti-Ro/SS-A
• Parenteral iron in Sjogren's-PVS avoided need for dilation in 2/3 cases
• Suggests immune dysregulation as a contributing pathogenic mechanism

10.3 Pediatric PVS (Vohra et al., BMC Pediatrics, 2024) [PMID: 38678196]

• Rare occurrence in children - case in 1-year-old male
• Iron supplements increase Hb but may not resolve dysphagia - dilation still required
• Sequential Savary-Gilliard dilation effective and safe in pediatrics

10.4 Celiac Disease Association (Alfaris et al., Int Med Case Rep J, 2023) [PMID: 37501941]

• PVS possibly associated with celiac disease as underlying cause of iron malabsorption
• Screening for celiac disease recommended in PVS patients

10.5 NEJM Case Report (Binet & Delorme, NEJM, 2024) [PMID: 38345572]

• Classic case highlighted in the NEJM - brought renewed attention to this rare condition

10.6 Role of Serum Ferritin

• Serum ferritin emerging as a key diagnostic marker in PVS (JOAS, India)
• Low ferritin levels correlate with severity of web formation

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11. SUMMARY TABLE (High-Yield for RGUHS)

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12. SOURCES CITED

• Scott-Brown's Otorhinolaryngology Head & Neck Surgery - Patterson-Brown-Kelly Syndrome section
• Cummings Otolaryngology Head & Neck Surgery - Etiology and Biology, Hypopharyngeal Ca (p. 1906)
• KJ Lee's Essential Otolaryngology (9th/10th ed) - Plummer-Vinson Syndrome; Esophageal Webs
• Bailey & Love's Short Practice of Surgery 28th ed - Sideropenic Dysphagia section
• Yamada's Textbook of Gastroenterology, 7th ed - Plummer-Vinson Syndrome (pp. 2325, 2350)
• StatPearls/NCBI - Plummer-Vinson Syndrome (Verma & Mukherjee, 2026 update)
• Alzamzamy et al., Dig Dis Sci 2025 - Multicenter Study PMID 40802140
• de Carvalho & Lerner, Immunol Res 2022 - Sjogren's Association PMID 34651287
• Vohra et al., BMC Pediatrics 2024 - Pediatric PVS PMID 38678196
• Binet & Delorme, NEJM 2024 - Classic Case PMID 38345572

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RGUHS EXAM TIPS (20 Marks Structure)

1. Definition + History (1 mark)
2. Epidemiology (1 mark)
3. Pathogenesis with flowchart (3 marks)
4. Clinical features/Triad (3 marks)
5. Investigations with diagram (3 marks)
6. Differential diagnosis (2 marks)
7. Treatment (4 marks)
8. Complications + Malignant risk (2 marks)
9. Recent advances (1 mark)