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OMOPOR > White Tissue Lesions (Non-malignant) II > Flashcards

White Tissue Lesions (Non-malignant) II Flashcards

1
Q

Which is true about oral hairy leukoplakia?

A) Asymptomatic non-removable white lesion
B) High malignant potential
C) Marker of poor prognosis in HIV
D) Only occurs in HIV patients

A

C

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2
Q

Which of the following does not describe oral lichen planus?

A) Can present as papular, atrophic, plaque, erosive and reticular types
B) Clinically presents with lacelike networks of slightly raised gray-white lines
C) Commonly found on the upper lip
D) Frequently associated with patient complaints of sensitivity to hot, acidic or spicy food

A

C

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3
Q

Which of the following is false about oral lichen planus?

A) Bilateral and symmetrical
B) Found on multiple sites
C) Less common in males
D) Most commonly found on the anterior buccal mucosa

A

D

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4
Q

A 55 year old female patient came to your clinic complaining of ulceration and bleeding and irritation with tooth brushing, and a change in taste. The patient presents with bilateral, symmetrical lesions on her posterior buccal mucosa and tongue. The lesions have a lacelike network of slightly raised whitish lines. What will be your management of the lesions?

A) No treatment
B) Prescribe tramadol
C) Prescribe betamethasone
D) Surgically remove the lesions

A

C

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5
Q

Which of the following is true about oral lichen planus?

A) It can change forms and often relapses.
B) It does not have chances of malignant transformation.
C) It presents as unilateral and localised in one site only.
D) It is an acute inflammatory disorder.

A

A

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6
Q

Which of the following is not an aggravating factor of oral lichen planus?

A) Candida
B) Consuming spicy food
C) Constantly sipping a beverage throughout the day
D) Toothpaste

A

C

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7
Q

A patient presents with a white lesion present on his buccal mucosa. The dentist suspects that the patient has oral lichen planus. Which of the following observations will support the dentist’s suspicion?

A) Prescription of corticosteroid will help manage widespread lesions
B) The lesion can be rubbed off the mucosa with gauze
C) The lesion disappears when the buccal mucosa is stretched
D) The lesion is usually present unilaterally and asymmetrically

A

A

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8
Q

Which is not a histological feature of frictional keratosis?

A) Acanthosis
B) Lack of dysplasia
C) Minimal or no keratosis
D) No/ mild inflammatory filtrate
E) Keratinocytic oedema

A

C (should be hyperkeratosis)

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9
Q

Which is not a possible course of treatment/management for oral lichen planus?

A) Topical corticosteroids
B) Topical antifungals
C) Systemic corticosteroids
D) Systemic antifungals

A

D

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10
Q

Mr Tan presented with a lesion on the floor of the mouth, which he noticed recently. He has been taking atenolol (beta blocker) for 1.5 years. He also has a history of high caries risk and has multiple composite resin restorations. What is his most likely condition?

A) Fordyce’s granules
B) Oral lichenoid contact lesion
C) Oral lichenoid drug reaction
D) Oral hairy leukoplakia

A

C

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11
Q

A 40 year old woman presents to your clinic for a white lesion she identified on the lower right buccal mucosa near her wisdom tooth. She reports a burning sensation in that region. On clinical examination, you observe a lace-like network, striated pattern of slightly elevated grey-white lines. The superficial layer can be scrapped off. A biopsy was taken and it is confirmed to be a type of lichen planus. What would be the most appropriate first treatment option?

A) Do nothing and review every 6 months to check lesions.
B) Prescribe topical nystatin and review for resolution of symptoms.
C) Prescribe tacrolimus and dexamethasone administration via intra-lesional injections.
D) Surgical excision of the entire lesion and review yearly to check for remission.

A

B

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12
Q

Which is not considered a high risk site for white lesions?

A) Floor of mouth
B) Lateral border of tongue
C) Retromolar region
D) Roof of mouth

A

D

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13
Q

Which is the most common site of oral lichen planus?

A) Alveolar ridge
B) Lips
C) Posterior buccal mucosa
D) Tongue

A

C

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14
Q

What is the correct definition of lichen planus?

A) It is a chronic B-cell mediated disorder of pseudostratified columnar epithelium
B) It is a chronic T-cell mediated disorder of stratified squamous epithelium
C) It is an acute B-cell mediated disorder of pseudostratified columnar epithelium
D) It is an acute T-cell mediated disorder of stratified squamous epithelium

A

B

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15
Q

Bilateral, mostly symmetrical white lesions are found at multiple sites in the mouth. The white lesions are found to be due to oral lichen planus. Which of the following sites are you least likely to find these white lesions?

A) Lips
B) Palate
C) Posterior buccal mucosa
D) Tongue

A

B

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16
Q

Which of the following is an infective oral white lesion?

A) Leukoedema
B) Linea alba
C) Oral hairy leukoplakia
D) Oral lichen planus

A

C

17
Q

What is a characteristic of Oral Lichen Planus?

A) It is a T-cell mediated disorder
B) It is more frequently seen in children than adults
C) It is well-demarcated
D) It usually occurs only on one side of the mouth

A

A

18
Q

Which of the following is a histopathologic criteria of oral lichen planus?

A) Absence of “liquefactive necrosis degeneration” in the basal cell layer
B) Absence of lymphocytic exocytosis
C) Presence of bandlike or patchy, predominantly lymphocytic infiltrate in the lamina propria confined to the epithelium-lamina propria interface
D) Presence of epithelial dysplasia and verrucous epithelial changes

A

C

19
Q

Which of the following is not the reason for white appearance of oral mucosa?

A) Epithelial atrophy
B) Odema of keratinocytes
C) Abnormal keratin formation
D) Fibrosis of underlying lamina propria

A

A

20
Q

Which of the following conditions are not clinical signs of Systemic Lupus Erythematous (SLE)?

A) Central atrophic area with radiating white striae
B) Erythematous lesions on the palate
C) Erythematous lesions on the tongue
D) Lichenoid lesions buccally, on the lips, palate, and gingiva

A

C

21
Q

Oral lichen planus is mediated by which cell type?

A) B-cells
B) Platelets
C) T-cells
D) Macrophages

A

C

22
Q

Which of the following is true about Nicotinic Stomatitis?

A) Painful
B) Potential to become malignant
C) Irreversible with cessation of habit
D) Nicotinic stomatitis is more commonly found in men than women

A

D

23
Q

Which of the following is FALSE about linea alba?

A) It is a form of benign, reactive hyperkeratosis
B) It can appear on one or both buccal mucosae
C) It must be treated through surgical excision
D) It is due to friction from repetitive interdigitation of teeth in the course of daily function

A

C

24
Q

Which of the following oral sites have the highest incidence of white lesions?

A) Floor of the mouth
B) Lateral sides of the tongue
C) Retromolar pad
D) Border of the lip

A

B

25
Q

Which of the following statements is false regarding linea alba?

A) Its histhopathologic findings include hyperkeratosis and acanthosis
B) It occurs more prominently at the anterior buccal mucosa
C) It presents as a uniform, horizontal white line
D) It occurs predominantly in females

A

B

26
Q

Which of the following has malignant potential?
A) Frictional keratosis
B) Nicotinic stomatitis
C) Oral hairy leukoplakia
D) Oral lichen planus

A

D

27
Q

A 60 year old male developed extensive white oral lesion with rough surface projection on the buccal mucosa and mandibular alveolar ridge. The biopsy shows irregular hyperkeratosis, bulbous rete pegs, moderate number of lymphocytes, moderate dysplasia, and congested vessels. What condition does this patient have?

A) Erythroleukoplakia
B) Oral lichen planus
C) Oral hairy leukoplakia
D) Proliferative verrucous leukoplakia

A

D

28
Q

Which is not a treatment option for Oral Lichen Planus?

A) Applying dexamethasone paste
B) Dexamethasone injection
C) Hydrocortisone injection
D) Topical Tacrolimus 0.1% ointment

A

C

29
Q

Which of the following is NOT a histological feature of Morsicatio buccarum?

A) Acanthosis
B) Inflammation
C) Keratinocyte oedema
D) Marked hyperkeratosis

A

B

30
Q

In oral lichen planus, the proposed antigenic etiology is due to CD8+ T cell destruction of?

A) Fibroblasts
B) Keratinocytes
C) Melanocytes
D) Merkel Cells

A

B

31
Q

Which of the following is true about frictional keratosis?

A) It is common in the oral cavity.
B) It has well demarcated margins.
C) It is removed through excision.
D) It has malignant potential.

A

A

32
Q

Which of the following is false with regards to oral lichen planus (OLP)?

A) It is a B-cell mediated disorder.
B) Managed by symptomatic therapy.
C) Typical age presentation is between 30-60 years.
D) Uncommonly found on the palate.

A

A

33
Q

Which of the following are criterias for determining OLP?

A) Unilateral symmetrical lesions
B) Erosive gray white lines
C) Liquefactive necrosis in granular cell layer
D) Epithelial dysplasia and verrucous changes

A

B

34
Q

What can cause nicotinic stomatitis?

A) Heavy smoking
B) Ingesting hot drinks over a prolonged period of time
C) Chewing on nicotinic products
D) All of the above

A

D

35
Q

Which of the following are traits of Benign Alveolar Ridge Keratosis?

A) Acanthosis with epithelial atypia
B) Can be due trauma from opposing dentition
C) Clearly demarcated white plaque
D) Have malignant potential

A

B

36
Q

A woman recently diagnosed with leukemia who had undergone Haematopoietic Stem Cell Transplant comes into the clinic complaining of pain inflammation and redness in the entire oral region. What could be the reason for her discomfort?

A) Patient had Oral Lichen Planus due to withdrawal from corticosteroids
B) Patient has Oral Lichen Planus due to a recently restored tooth with amalgam
C) Patient was experiencing acute Graft versus Host Disease
D) Patient could have Systemic Lupus Erythematosus

A

C

37
Q

Patient presents with benign alveolar ridge keratosis (BARK), what type of oral white lesion can it be categorised under?

A) Developmental
B) Infective
C) Reactive
D) Neoplastic

A

C

OMOPOR (17 decks)

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