BDS10015 Histopathology of Benign Oral Soft Tissue Lesions

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Which of the following is a common site for keratoacanthoma?

Outer edge of the vermillion border of lips (correct)

Hard palate

Buccal mucosa

Floor of the mouth

What is the etiology of keratoacanthoma?

Viral factors (HPV 26, 37) (correct)

Bacterial infection

Trauma

Fungal infection

How does keratoacanthoma clinically present?

Painful with rapid growth

Symptomatic with ulceration

Asymptomatic, more common in older males (correct)

Asymptomatic, more common in females

What is the histopathological feature of keratoacanthoma?

Well-differentiated squamous cell carcinoma Signup and view all the answers

Which of the following is NOT a possible etiology for keratoacanthoma?

Bacterial infection Signup and view all the answers

What is the typical age group for the occurrence of keratoacanthoma?

Older adults, especially males Signup and view all the answers

Which of the following is a possible cause for keratoacanthoma?

Actinic radiation Signup and view all the answers

What distinguishes keratoacanthoma from squamous cell carcinoma histopathologically?

Presence of cystic spaces lined by endothelial cells Signup and view all the answers

Which statement about keratoacanthoma is true?

$ ext{5-10} ext{%}$ of keratoacanthomas regress spontaneously without treatment. Signup and view all the answers

What is a distinguishing feature of keratoacanthoma?

$ ext{It}$ has a central crater filled with keratin. Signup and view all the answers

What differentiates keratoacanthoma from squamous cell carcinoma?

$ ext{Keratoacanthoma}$ does not metastasize, whereas squamous cell carcinoma does. Signup and view all the answers

What distinguishes keratoacanthoma from basal cell carcinoma?

$ ext{Keratoacanthoma}$ resembles well-differentiated squamous cell carcinoma, while basal cell carcinoma does not. Signup and view all the answers

Which of the following benign neoplasms is restricted to the craniofacial skeleton and is rare in other bones?

Osteoma Signup and view all the answers

Which of the following benign neoplasms is characterized by variable abnormalities in bone, skin, and teeth as well as colorectal polyps?

Osteoma Signup and view all the answers

Why is it wise to consider chondroma of the jaw as a potential chondrosarcoma?

Because the microscopic distinction between benign chondroma and low-grade chondrosarcoma of the jaw is difficult Signup and view all the answers

Which condition presents as a tumor-like condition characterized by the presence of normal tissue in an exaggerating manner?

Hamartoma Signup and view all the answers

Which benign neoplasm is a benign vascular hamartoma affecting the mucosa and is considered as a tumor of infancy that shows rapid growth, followed by gradual involution?

Haemangioma Signup and view all the answers

What is the most common site of lymphangioma intraorally?

Anterior 2/3 of the tongue Signup and view all the answers

Which benign neoplasm consists of small blood spaces lined by endothelial cells that are separated by connective tissue stroma?

Haemangioma Signup and view all the answers

Which benign neoplasm arises on the surface of bone causing facial deformity?

Osteoma Signup and view all the answers

Which benign hamartomatus tumorlike growth of lymphatic vessels has a marked predilection to the head & neck?

Lymphangioma Signup and view all the answers

What is characteristic of Gardner’s syndrome?

High risk for transformation of colorectal polyps into adenocarcinoma if untreated Signup and view all the answers

In which condition does a vascular malformation persist throughout life and is present at birth?

Sturge-Weber disease Signup and view all the answers

What is characteristic of a cavernous haemangioma?

Consists of large blood spaces that may show papillary enfolding Signup and view all the answers

Which lesion shows rapid enlargement to its full size of 1-2 cm over 6 weeks?

Keratoacanthoma Signup and view all the answers

What is the characteristic feature of Antoni type A in Schwanoma histopathology?

Palisading arrangement of cells and their nuclei in rows Signup and view all the answers

Which benign neoplasm is believed to be reactive hyperplasia of fibrous connective tissue rather than a true neoplasm?

Fibroma Signup and view all the answers

Which benign neoplasm appears as a sessile mass affecting both males and females at middle age?

Granular cell tumor Signup and view all the answers

What is the most common site for Granular cell tumor?

Tongue Signup and view all the answers

Which benign neoplasm is a slowly growing, asymptomatic, soft swelling with a smooth surface?

Lipoma Signup and view all the answers

What is the differential diagnosis for Granular cell tumor?

Congenital epulis of newborn Signup and view all the answers

Which benign neoplasm is composed of interlacing bundles of spindle-shaped cells with wavy nuclei in delicate connective tissue?

Neurofibroma Signup and view all the answers

What is the lab finding associated with Melanotic neuroectodermal tumor of infancy?

High levels of urinary vanillylmandelic acid Signup and view all the answers

BDS10015 Histopathology of Benign Oral Soft Tissue Lesions

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Questions and Answers

Which of the following is a common site for keratoacanthoma?

What is the etiology of keratoacanthoma?

How does keratoacanthoma clinically present?

What is the histopathological feature of keratoacanthoma?

Which of the following is NOT a possible etiology for keratoacanthoma?

What is the typical age group for the occurrence of keratoacanthoma?

Which of the following is a possible cause for keratoacanthoma?

What distinguishes keratoacanthoma from squamous cell carcinoma histopathologically?

Which statement about keratoacanthoma is true?

What is a distinguishing feature of keratoacanthoma?

What differentiates keratoacanthoma from squamous cell carcinoma?

What distinguishes keratoacanthoma from basal cell carcinoma?

Which of the following benign neoplasms is restricted to the craniofacial skeleton and is rare in other bones?

Which of the following benign neoplasms is characterized by variable abnormalities in bone, skin, and teeth as well as colorectal polyps?

Why is it wise to consider chondroma of the jaw as a potential chondrosarcoma?

Which condition presents as a tumor-like condition characterized by the presence of normal tissue in an exaggerating manner?

Which benign neoplasm is a benign vascular hamartoma affecting the mucosa and is considered as a tumor of infancy that shows rapid growth, followed by gradual involution?

What is the most common site of lymphangioma intraorally?

Which benign neoplasm consists of small blood spaces lined by endothelial cells that are separated by connective tissue stroma?

Which benign neoplasm arises on the surface of bone causing facial deformity?

Which benign hamartomatus tumorlike growth of lymphatic vessels has a marked predilection to the head & neck?

What is characteristic of Gardner’s syndrome?

In which condition does a vascular malformation persist throughout life and is present at birth?

What is characteristic of a cavernous haemangioma?

Which lesion shows rapid enlargement to its full size of 1-2 cm over 6 weeks?

What is the characteristic feature of Antoni type A in Schwanoma histopathology?

Which benign neoplasm is believed to be reactive hyperplasia of fibrous connective tissue rather than a true neoplasm?

Which benign neoplasm appears as a sessile mass affecting both males and females at middle age?

What is the most common site for Granular cell tumor?

Which benign neoplasm is a slowly growing, asymptomatic, soft swelling with a smooth surface?

What is the differential diagnosis for Granular cell tumor?

Which benign neoplasm is composed of interlacing bundles of spindle-shaped cells with wavy nuclei in delicate connective tissue?

What is the lab finding associated with Melanotic neuroectodermal tumor of infancy?

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