18 Plastics, Skin, and Soft Tissues SKIN

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Which cell type primarily provides a mechanical barrier in the epidermis?

Langerhans cells

Melanocytes

Sensory nerves

Keratinocytes (correct)

What is the origin of Langerhans cells?

Bone marrow origin (correct)

Neuroectodermal origin

Dermal origin

Basal layer of epidermis

Which type of sweat glands are responsible for thermal regulation?

Apocrine sweat glands

Ceruminous glands

Sebaceous glands

Eccrine sweat glands (correct)

What is the primary function of Pacinian corpuscles in the skin?

Pressure detection Signup and view all the answers

What is the role of Melanocytes in the epidermis?

Transfer melanin to neighboring keratinocytes Signup and view all the answers

Which sensory nerve ending is responsible for detecting tactile sense in the skin?

Meissner’s corpuscles Signup and view all the answers

Which type of soft tissue sarcoma has the poorest prognosis in children?

Alveolar subtype Signup and view all the answers

What is the most common site for desmoid tumors?

Anterior abdominal wall Signup and view all the answers

Which condition is associated with increased sweating, especially noticeable in the palms?

Hyperhidrosis Signup and view all the answers

What is the most common type of benign cyst that contains mature epidermis with creamy keratin material?

Epidermal inclusion cyst Signup and view all the answers

Which genetic syndrome is associated with childhood rhabdomyosarcoma?

Li–Fraumeni syndrome Signup and view all the answers

What type of tumor is characterized by painful tumor composed of blood vessels and nerves?

Glomus cell tumor Signup and view all the answers

What is the treatment for botryoides tumor?

Surgery Signup and view all the answers

Which type of sarcoma originates from metaphyseal cells and usually occurs in children?

Osteosarcoma Signup and view all the answers

What is the characteristic feature of Merkel cell carcinoma?

Purple papulonodule Signup and view all the answers

"Rolling" edges and "crater" filled with keratin are characteristic features of which condition?

"Keratoacanthoma" Signup and view all the answers

Which condition is associated with infection of the apocrine sweat glands, usually in axilla and groin regions?

Hidradenitis Signup and view all the answers

What is the most common mesenchymal tumor?

Lipoma Signup and view all the answers

Which type of flap is more commonly used than the TRAM flap for breast reconstruction?

DIEP flap Signup and view all the answers

What is the most common site for distant melanoma metastases?

Lung Signup and view all the answers

What is the single best factor for protecting the skin from UV radiation?

Melanin Signup and view all the answers

What is the primary risk factor for developing melanoma?

Family history of melanoma Signup and view all the answers

What is the most common type of skin cancer, accounting for 65% of skin cancer deaths?

Melanoma Signup and view all the answers

Which type of UV radiation is responsible for chronic sun damage?

UV-B Signup and view all the answers

Which type of melanoma is characterized by being the least aggressive and having minimal invasion with radial growth first?

Lentigo maligna melanoma Signup and view all the answers

What is the most common site for melanoma on the skin in men?

Back Signup and view all the answers

Which type of skin cancer is more likely to metastasize to the parotid gland?

Melanoma Signup and view all the answers

What is the most common malignancy in the United States?

Basal cell carcinoma Signup and view all the answers

Which skin cancer is characterized by a pearly appearance and rolled borders?

Basal cell carcinoma Signup and view all the answers

What is the most common site for metastasis in melanoma?

Lung Signup and view all the answers

Which soft tissue sarcoma arises from embryonic mesoderm and is commonly found in children?

Rhabdomyosarcoma Signup and view all the answers

What is the most important prognostic factor in soft tissue sarcoma?

Tumor grade Signup and view all the answers

What is the primary goal of treatment for Kaposi’s sarcoma (KS)?

Palliation Signup and view all the answers

What is the most common site for sarcomas in the pediatric population?

Head and neck Signup and view all the answers

What risk factor is associated with angiosarcoma?

Chronic lymphedema Signup and view all the answers

What is the main treatment approach that shrinks AIDS-related Kaposi’s sarcoma (KS)?

Antiretroviral therapy (HAART) Signup and view all the answers