Capillary Malformations in Dermis

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Questions and Answers

What type of malformations are characterized by postcapillary venules?

Venous malformations

Capillary (venular) malformations (correct)

Arterial malformations

Lymphatic malformations

Where are the postcapillary venules located in capillary (venular) malformations?

Subcutaneous tissue

Deep reticular dermis

Papillary dermis (correct)

Superficial reticular dermis (correct)

What is the primary goal of treatment in the proliferative phase?

To monitor the lesion for spontaneous regression

To perform immediate surgery

To provide medication for pain relief

To eradicate or stunt the growth of lesions (correct)

What type of lesions are typically not treated aggressively in the proliferative phase?

Lesions that are not life or sight threatening Signup and view all the answers

What is the primary component of capillary (venular) malformations?

Postcapillary venules Signup and view all the answers

What is an important aspect of managing lesions in the proliferative phase?

Providing regular education to parents Signup and view all the answers

Which of the following is NOT a characteristic of capillary (venular) malformations?

Located in the deep reticular dermis Signup and view all the answers

What is the primary benefit of regular follow-up in the proliferative phase?

To ensure the lesion is not growing Signup and view all the answers

What is the general classification of capillary (venular) malformations?

Low-flow malformations Signup and view all the answers

What is the term for the approach of not actively treating a lesion in the proliferative phase?

Watchful neglect Signup and view all the answers

What are the types of venous malformations?

Focal, multifocal, and diffuse Signup and view all the answers

What percentage of venous malformations are located in the head and neck area?

60% Signup and view all the answers

Where are the majority of venous malformations located?

Head and neck Signup and view all the answers

What is a characteristic of up to 60% of venous malformations?

They are located in the head and neck area Signup and view all the answers

What is true about venous malformations?

They can be found in the head and neck area Signup and view all the answers

What is the purpose of grey-scale ultrasound?

To define whether the lesion is solid or cystic Signup and view all the answers

What is the purpose of Doppler analysis?

To identify the presence of high flow vessels Signup and view all the answers

What is the categorization of lymphatic malformations based on?

Size of cysts Signup and view all the answers

What is established by Doppler analysis?

The presence or absence of high flow vessels Signup and view all the answers

What is the characteristic of macrocystic lymphatic malformations?

Single or multiple cysts >2 cm3 Signup and view all the answers

What is defined by grey-scale ultrasound?

Whether the lesion is solid or cystic Signup and view all the answers

What is the defining feature of microcystic lymphatic malformations?

Not specified in the content Signup and view all the answers

What do grey-scale ultrasound and Doppler analysis help in?

Defining whether the lesion is solid or cystic and establishing the presence or absence of high flow vessels Signup and view all the answers

How many categories are lymphatic malformations divided into?

2 Signup and view all the answers

What is the unit of measurement for the size of cysts in lymphatic malformations?

cm3 Signup and view all the answers

Study Notes

Low-Flow Malformations

Capillary (venular) malformations are composed of postcapillary venules within the papillary and superficial reticular dermis.
They can appear in focal, multifocal, or diffuse forms.
Approximately 60% of venous malformations occur in the head and neck area.

Lymphatic Malformations

Lymphatic malformations are categorized into two types:
- Macrocystic: featuring single or multiple cysts larger than 2 cm3
- Microcystic

Treatment of Low-Flow Malformations

During the proliferative phase, the goal is to eradicate or stunt the growth of the malformation.
Treatment options include:
- Benign neglect or watchful waiting with parental education and regular follow-up, particularly for non-life-threatening lesions.
Diagnostic tools:
- Grey-scale ultrasound
- Doppler analysis: useful in determining whether the lesion is solid or cystic and in identifying the presence or absence of high-flow vessels.

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Description

Learn about capillary malformations, also known as venular malformations, and their composition in the dermis. This quiz covers the anatomy and characteristics of these malformations.