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By Diseases of Salivary Glands 2 Comments

Pleomorphic adenoma is______________?

A. a teratomatous tumour of the salivary gland
B. a neuroendocrine cell tumour
C. multiple ectopic tissue proliferating in the salivary gland
D. myoepithelial or ductal reserve cell origin

Correct Answer: D. myoepithelial or ductal reserve cell origin

Explanation:
Pleomorphic adenoma, also known as a benign mixed tumor, is the most common type of salivary gland tumor. It arises from myoepithelial cells or ductal reserve cells in the salivary gland. This tumor is characterized by its pleomorphic (mixed) histological appearance, containing both epithelial and mesenchymal (stromal) components, hence the name “pleomorphic.”

It typically presents as a slow-growing, painless, and firm mass, commonly occurring in the parotid gland. Although benign, there is a potential for malignant transformation if left untreated for a long time.

Related Mcqs:

  1. Pleomorphic adenoma arises from______________?

    A. Myoepithelial cells
    B. Aciner cells
    C. Connective tissue
    D. Stem cells

  2. Intra Oral pleomorphic adenoma usually occurs in_______________?

    A. Buccal mucosa
    B. Upper lip
    C. Floor of the mouth
    D. Palate

  3. The recurrence of pleomorphic adenoma is attributed to____________?

    A. Presence of an incomplete capsule
    B. Mixed origin
    C. Absence of capsule
    D. Perineural spread

  4. Tubular (Canalicular) adenoma occurs on_____________?

    Tubular (Canalicular) adenoma occurs on:

    A. Upper lip
    B. Palate
    C. Lower lip
    D. Glingiva

  5. Most common tumor of parotid gland is______________?

    A. Plemorphic adenoma
    B. Adenoid cystic carcinoma
    C. Cylindroma
    D. Epidermoud carcinoma

  6. The most common complication of mumps is______________?

    A. myocarditis
    B. Orchitis
    C. Uveitis
    D. Conjunctivits

  7. Most common site of tuberculous lesion in the oral cavity is______________?

    A. Buccal mucosa
    B. Lips
    C. Tongue
    D. Palate

  8. Which type of candidiasis is associated with leukoplakia is______________?

    A. Acute pseudomembranous candidiasis
    B. Acute atrohpic candidiasis
    C. Chronic atrophic candidiasis
    D. Chronic hyperplastic candidiasis

  9. A disease which only affects the formation and eruption of tooth but does not cause hypoplasia is______________?

    A. Hypoparathyroidism
    B. Hyperthyroidism
    C. Rickets
    D. Syphilis

  10. Cancer which most commonly metastasizes to jaw bone is______________?

    A. Breast
    B. Prostatic
    C. Lung
    D. Kidney

The correct answer to the question: "Pleomorphic adenoma is______________?" is "myoepithelial or ductal reserve cell origin".

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