We are independent & ad-supported. We may earn a commission for purchases made through our links.
Advertiser Disclosure
Our website is an independent, advertising-supported platform. We provide our content free of charge to our readers, and to keep it that way, we rely on revenue generated through advertisements and affiliate partnerships. This means that when you click on certain links on our site and make a purchase, we may earn a commission. Learn more.
How We Make Money
We sustain our operations through affiliate commissions and advertising. If you click on an affiliate link and make a purchase, we may receive a commission from the merchant at no additional cost to you. We also display advertisements on our website, which help generate revenue to support our work and keep our content free for readers. Our editorial team operates independently of our advertising and affiliate partnerships to ensure that our content remains unbiased and focused on providing you with the best information and recommendations based on thorough research and honest evaluations. To remain transparent, we’ve provided a list of our current affiliate partners here.

What Are the Different Types of Lipomas?

By Maggie J. Hall
Updated Feb 03, 2024
Our promise to you
WiseGeek is dedicated to creating trustworthy, high-quality content that always prioritizes transparency, integrity, and inclusivity above all else. Our ensure that our content creation and review process includes rigorous fact-checking, evidence-based, and continual updates to ensure accuracy and reliability.

Our Promise to you

Founded in 2002, our company has been a trusted resource for readers seeking informative and engaging content. Our dedication to quality remains unwavering—and will never change. We follow a strict editorial policy, ensuring that our content is authored by highly qualified professionals and edited by subject matter experts. This guarantees that everything we publish is objective, accurate, and trustworthy.

Over the years, we've refined our approach to cover a wide range of topics, providing readers with reliable and practical advice to enhance their knowledge and skills. That's why millions of readers turn to us each year. Join us in celebrating the joy of learning, guided by standards you can trust.

Editorial Standards

At WiseGeek, we are committed to creating content that you can trust. Our editorial process is designed to ensure that every piece of content we publish is accurate, reliable, and informative.

Our team of experienced writers and editors follows a strict set of guidelines to ensure the highest quality content. We conduct thorough research, fact-check all information, and rely on credible sources to back up our claims. Our content is reviewed by subject-matter experts to ensure accuracy and clarity.

We believe in transparency and maintain editorial independence from our advertisers. Our team does not receive direct compensation from advertisers, allowing us to create unbiased content that prioritizes your interests.

Scientists typically name different types of lipomas for the location in which they develop. The benign tumors contain fatty tissue that may accompany collagen, or other fibrous tissue, and vascular structures. They are usually hereditary but may occur following tissue injury or trauma. Individuals who have these soft tissue tumors generally do not require treatment unless the mass causes discomfort because it compresses nerve tissue or organs. On rare occasions, they may cause hemorrhage.

Angiolipomas most commonly develop as multiple growths on the arms or chest of young adults. This type of tumor acquired the name because, in addition to fatty or adipose tissue, the mass usually contains complex vascular structures. Individuals who have these growths usually complain of discomfort.

Conventional lipomas form beneath the skin. The mass is generally painless and movable beneath the skin’s surface. This type of growth is the most common and contains adipose tissue surrounded in a fibrous outer covering. These masses may be as large as a couple of inches in diameter (1 inch = 2.54 centimeters).

Fibrolipomas are a mixture of fatty and fibrous tissues. They may develop anywhere in the body but are most frequently found in and around the mouth and anywhere throughout the gastrointestinal tract. These masses often cause lymphedema and nerve compression and have been associated with hemorrhage.

The rarest form is the myelolipoma. These tumors contain fatty tissue but also consist of red and white cells as well as having platelet forming abilities, similar to bone marrow. They usually develop singly on the inside or exterior of an adrenal gland. Myelolipomas most often affect men from the ages of 40 to 60. Individuals may experience bloody urine, hypertension, and pain from organ compression.

Pleomorphic lipomas usually appear on the back of the neck, the upper back, and shoulders. Unlike typical growths, these masses vary in fat content, which may range anywhere from 10% to 90%. Accompanying the fat tissue are bundles of collagen fibers, blood vessels, and empty spaces.

Spindle cell lipomas are frequently mistaken for a malignancy known as liposarcoma. These growths are generally firmer to the touch than average lipoma masses. They contain gray, white, and yellow coloration. Besides fatty tissue, the tumor has bundles of fibrous, spindle-shaped cells and mucus material. These growths usually affect males aged 45 to 70.

WiseGeek is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.

Related Articles

Discussion Comments
WiseGeek, in your inbox

Our latest articles, guides, and more, delivered daily.

WiseGeek, in your inbox

Our latest articles, guides, and more, delivered daily.