Skin Anatomy and Benign Lesions

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Questions and Answers

What are the appendages of the skin?

Sweat glands, sebaceous glands, and hair follicles

What is a sebaceous cyst composed of?

Keratin, epithelial cells, and glandular debris

What is the function of sebaceous glands?

To produce sebum

What is the main component of a sebaceous cyst?

Keratin Signup and view all the answers

What is the function of sweat glands?

To regulate body temperature Signup and view all the answers

What is the skin composed of?

Epidermis, dermis, and hypodermis Signup and view all the answers

What is a unique feature of the skin?

It is the largest organ Signup and view all the answers

What are the SC tissues in the skin?

Fat cells, blood vessels, lymphatics, and LNs Signup and view all the answers

What is NOT a type of skin lesion mentioned in the text?

Melanoma Signup and view all the answers

What is the layer of skin that contains fat cells?

Hypodermis Signup and view all the answers

What is the primary goal when dealing with infected tissues?

To remove the infected area Signup and view all the answers

What is the recommended course of action for a punctum with a cyst?

Remove the punctum with the cyst Signup and view all the answers

What is the primary method of differentiating a dermoid cyst from a lipoma?

Location of the cyst Signup and view all the answers

What happens to the tissue after it is incised and drained?

It returns to its normal state Signup and view all the answers

What is the primary reason for removing the cyst?

To allow the tissue to return to its normal state Signup and view all the answers

What is characterized by a moulding sign as fecal impaction?

Abscess Signup and view all the answers

What is attached to the skin by a punctum?

Sebum Signup and view all the answers

What is a sign of an abscess?

Fever, pain, and reddish skin Signup and view all the answers

What is the opposite of 'من فترة قريبة' in the context of the table?

‫فترة طويلة‬ Signup and view all the answers

What is pus?

A type of inflammatory response Signup and view all the answers

What type of tumor may be present in the neck and back if the skin is large?

Liposarcoma Signup and view all the answers

What is the term for a liposarcoma occurring in the bone?

Parosteal liposarcoma Signup and view all the answers

What is the term for a liposarcoma occurring outside the dura mater?

Extradural liposarcoma Signup and view all the answers

What may be a complication of extradural liposarcoma?

Incontinence and paraplegia Signup and view all the answers

What are the two types of liposarcoma mentioned besides liposarcoma?

Parosteal and intrarticular Signup and view all the answers

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Study Notes

Skin Structure

Composed of epidermis, dermis, and hypodermis, along with subcutaneous tissues (fat cells, blood vessels, lymphatics, and lymph nodes)
Skin is the largest organ in the body
Appendages include sweat glands, sebaceous glands, and hair follicles

Sebaceous Cyst

Composed of keratin, epithelial cells, and glandular debris
Can become abscessed, leading to fever, pain, and reddish skin
Filled with sebum, and attached to skin by a punctum
Characterized by the moulding sign, a sign of fecal impaction, with necrotic tissues
Treatment involves removing the punctum with the cyst; infected cysts are incised and drained

Dermoid Cyst

Differentiated from lipoma by its site
Can be parosteal or intrarticular types
Large cysts in the neck and back may be liposarcomas
Extradural cysts can cause paraplegia or incontinence

Haemangioma and Lipoma

Haemangioma: no specific mention in the text
Lipoma: differentiated from dermoid cyst by its site; large lipomas in the neck and back may be liposarcomas