Oral Lesions and Prognosis Quiz

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Questions and Answers

Describe the clinical presentation of poor prognosis leukoplakia, focusing on both appearance and location.

Poor prognosis leukoplakia often presents with a speckled appearance (combining erythroplakia and leukoplakia), a nodular surface, exophytic growth, increased firmness or induration, and unexplained hemorrhage. Common sites include the lateral border of the tongue, ventral surface of the tongue, floor of the mouth, and retromolar areas.

What are the significant differences between leukoplakia and proliferative verrucous leukoplakia in terms of prognosis and malignant transformation rates?

Leukoplakia can be managed with conservative measures including smoking cessation and balanced diet, with a 70% chance of regression. In contrast, proliferative verrucous leukoplakia has a high malignant transformation rate (50-70%) and a strong tendency to recur after treatment.

Outline the recommended management approaches for mild dysplasia associated with leukoplakia.

Management for mild dysplasia includes smoking cessation, alcohol reduction, a balanced diet rich in fruits and vegetables, and treatment of any candidal infections. Regular monitoring every 6 months is also crucial.

What is the primary treatment strategy for moderate and severe dysplasia associated with leukoplakia?

<p>Moderate and severe dysplasia necessitates surgical excision or laser removal to eliminate the dysplastic tissue and minimize the risk of progression.</p> Signup and view all the answers

Describe the key clinical features of proliferative verrucous leukoplakia, including its development and typical anatomical locations.

<p>Proliferative verrucous leukoplakia typically begins as a white patch that gradually develops into multiple exophytic, wart-like lesions. It is primarily observed in the buccal mucosa, gingiva, and tongue.</p> Signup and view all the answers

How does the clinical presentation of submucous fibrosis differ from leukoplakia, and what is the primary etiological factor associated with submucous fibrosis?

<p>Submucous fibrosis is characterized by progressive fibrosis affecting the hard and soft palate, fauces, and cheeks, leading to restricted mobility. This differs from leukoplakia, which primarily affects the mucosal surface. Betel nut chewing (areca nut) is the primary etiological factor associated with submucous fibrosis.</p> Signup and view all the answers

Explain the significance of the high recurrence rate associated with proliferative verrucous leukoplakia and submucous fibrosis in terms of patient management.

<p>The high recurrence rates associated with proliferative verrucous leukoplakia and submucous fibrosis necessitate long-term follow-up and multiple surgical interventions to control the lesions and minimize the risk of malignancy.</p> Signup and view all the answers

What are the different treatment approaches for proliferative verrucous leukoplakia and submucous fibrosis, and what are the challenges associated with each approach?

<p>Proliferative verrucous leukoplakia is typically treated through surgical resection, although there's a high rate of recurrence, often necessitating multiple interventions. Submucous fibrosis treatment primarily focuses on preventing further progression through cessation of betel nut chewing and supportive measures like corticosteroid therapy. The challenge in both conditions is maintaining long-term control and managing persistent lesions.</p> Signup and view all the answers

What clinical findings are indicative of sublingual keratosis?

<p>Irregular, diffuse, flat white patches on the mucosa, pale and firm appearance, and limited mouth opening due to fibrosis.</p> Signup and view all the answers

Explain the role of biopsy in the management of sublingual keratosis.

<p>A biopsy assesses the presence of dysplasia; if moderate to severe dysplasia is present, surgical or laser removal may be indicated.</p> Signup and view all the answers

What are the histological features associated with sublingual keratosis?

<p>Histological features include atrophy of the epithelium, possible dysplasia, fibrosis with excess Type 1 collagen, and mild to moderate chronic inflammation.</p> Signup and view all the answers

Identify two symptoms experienced by patients with sublingual keratosis.

<p>Patients may experience a burning sensation and pain due to atrophy of the tissue.</p> Signup and view all the answers

What is the significance of monitoring patients with no dysplasia or mild dysplasia in sublingual keratosis?

<p>Regular monitoring helps to identify any progression of dysplasia, which could indicate an increased risk of malignancy.</p> Signup and view all the answers

What differentiates sublingual keratosis from other oral conditions like leukodema?

<p>Leukodema is a normal variation of mucosal appearance, while sublingual keratosis is a potentially malignant disorder characterized by chronic irritation.</p> Signup and view all the answers

How can the cessation of betel nut usage affect the management of sublingual keratosis?

<p>Discontinuation of betel nut can reduce chronic irritation, potentially alleviating symptoms and preventing progression of the condition.</p> Signup and view all the answers

What is the primary treatment approach for patients with moderate to severe dysplasia in sublingual keratosis?

<p>The primary treatment approach involves surgical or laser removal of the lesions.</p> Signup and view all the answers

Flashcards

Clinical Diagnosis

Diagnosis can be made from clinical history and examination.

Biopsy Purpose

A biopsy rules out malignancy in suspicious cases.

Epithelium Atrophy

Atrophy refers to thin, flattened epithelium.

Dysplasia

Dysplasia indicates abnormal cells and increased cancer risk.

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Fibrosis

Fibrosis shows excess Type 1 collagen with few fibroblasts.

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Chronic Inflammation

Mild to moderate chronic inflammatory infiltrate present.

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Sublingual Keratosis

Chronic white keratotic lesion under the tongue due to irritation.

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Management of Mild Dysplasia

Includes stopping irritants and regular monitoring.

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Poor Prognosis Presentation

Includes speckled appearance, nodular surface, exophytic growth, increased firmness, and unexplained hemorrhage.

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Common Sites for Lesions

Lateral border of tongue, ventral surface of tongue, floor of mouth, retromolar areas.

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Biopsy for Dysplasia

A procedure to assess the level of dysplasia in lesions for diagnosis.

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Mild Dysplastic Management

Includes smoking cessation, alcohol reduction, balanced diet, treatment of fungal infections, with 70% regression in 12 months.

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Moderate & Severe Dysplasia Treatment

Requires surgical excision or laser removal, with follow-ups every 6-12 months.

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Proliferative Verrucous Leukoplakia

A rare leukoplakia type with 50-70% malignant transformation risk and high recurrence probability.

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Submucous Fibrosis

Progressive fibrosis of oral tissues with a 20% malignant transformation rate, prevalent in South Asia.

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Histological Assessment

Biopsy analysis to identify dysplastic changes in lesions.

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Study Notes

Poor Prognosis Oral Lesions

  • Appearance: Speckled (erythroplakia + leukoplakia), nodular surface, exophytic growth, increased firmness/induration, unexplained haemorrhage.
  • Site: Lateral border of tongue, ventral surface of tongue, floor of mouth, retromolar areas, buccal mucosa, gingiva, tongue.
  • Differentials: Normal development (leukodema), traumatic (keratosis), hereditary (white sponge nevus), inflammatory (lichen planus), causative (stomatitis nicotina, candidal leukoplakia), malignancy (SCC).
  • Management & RX: Biopsy for dysplasia assessment.
    • Mild Dysplasia: Smoking/alcohol cessation, balanced diet, treating candidal infections, monitor every 6 months (70% regress).
    • Moderate/Severe Dysplasia: Surgical excision or laser removal, regular follow-up (6-12 months).

Proliferative Verrucous Leukoplakia (PVL)

  • Definition: Rare type of leukoplakia.
  • Prognosis: High malignant transformation (50-70%), high recurrence rate.
  • Aetiology: Unknown.
  • Investigation: Biopsy for histological assessment.
    • Gradual progression: from hyperkeratosis to verrucous hyperplasia, verrucous carcinoma, or OSCC.
  • Clinical Presentation: Initially white patch, develops into multiple exophytic wart-like lesions.
  • Treatment/Management: Surgical resection (high recurrence rate), multiple interventions may be necessary.

Submucous Fibrosis

  • Definition: Progressive fibrosis of hard/soft palate, fauces, cheeks, due to abnormal collagen deposition.
  • Prognosis: Premalignant, 20% malignant transformation rate.
  • Prevalence: South Asian & Southeast Asia, ages 20-40.
  • Aetiology: Chewing betel nut (carcinogenic).
  • Investigations: Clinical history & exam are sufficient for diagnosis, biopsy to rule out malignancy.
  • Histology:
    • Epithelial atrophy (thinned, flattened epithelium)
    • Dysplasia (possible, increased cancer risk)
    • Excess type 1 collagen, few fibroblasts
    • Mild-moderate chronic inflammation
    • Stiff, fibrotic submucosa (restricted mouth opening)
  • Clinical Presentation (signs): Irregular, diffuse, flat white patches (bilateral), pale, firm mucosa, atrophy, fibrous bands, limited mouth opening, depapillated tongue.
  • Clinical Presentation (symptoms): Burning sensation, pain (due to atrophy).
  • Management: Biopsy for dysplasia assessment.
    • Mild/no dysplasia: Discontinuing betel nut, manual stretching exercises, therapy, regular monitoring.
    • Moderate/Severe dysplasia: Surgical or laser removal.
  • Differentials: Normal variation (leukodema), traumatic (frictional keratosis), hereditary (white sponge nevus).

Sublingual Keratosis

  • Definition: Chronic, white, keratotic lesion on the ventral tongue or floor of mouth, due to chronic irritation.
  • Prognosis: Potentially malignant disorder (PMD).

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