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Lump in armpit

Lump in armpit: Causes, Symptoms, and Ultrasound role in Diagnosis

Armpit lumps are abnormal growths or swellings in the armpit area that can be alarming. These lumps can vary in size, texture, and tenderness. Some may be painless and unnoticed until they grow larger, while others may cause discomfort and be easily felt.

Causes of Armpit Lumps

The causes of armpit lumps are diverse and can range from benign to serious. Here are some common causes:

  1. Infections:

    • Bacterial Infections: Bacterial infections, such as cellulitis or abscesses, can cause the lymph nodes in the armpit to swell. This swelling is usually painful and may be accompanied by redness and warmth in the affected area.
    • Viral Infections: Viruses like HIV, Epstein-Barr virus (which causes mononucleosis), and the common cold can lead to swollen lymph nodes. These infections often cause systemic symptoms like fever, fatigue, and body aches.

  2. Lymphadenopathy:

    • Lymphadenopathy refers to swollen or enlarged lymph nodes, which can result from infections, autoimmune diseases, or malignancies. Conditions like rheumatoid arthritis and lupus can cause chronic inflammation and lymph node enlargement.

  3. Cysts:

    • Sebaceous Cysts: These are non-cancerous, fluid-filled sacs that develop in the sebaceous glands. They can form anywhere on the body, including the armpits, and are typically painless unless infected.
    • Lipomas: These are benign tumors composed of fatty tissue. Lipomas are generally soft to the touch, movable, and painless. They grow slowly and are usually harmless but can be surgically removed if they cause discomfort or cosmetic concerns.

  4. Cancer:

    • Breast Cancer: A lump in the armpit can be an early sign of breast cancer, especially if it is hard, immovable, and painless. The lymph nodes in the armpit are often the first place breast cancer spreads.
    • Lymphoma: This type of cancer affects the lymphatic system, which includes the lymph nodes. Lymphoma can cause painless swelling of the lymph nodes in the armpits, neck, or groin.
    • Leukemia: Some types of leukemia, a cancer of the blood-forming tissues, can cause lymph nodes to enlarge as the body attempts to fight off the abnormal blood cells.

  5. Other Conditions:

    • Allergic Reactions: Allergic reactions to medications, vaccinations, or other substances can cause temporary swelling of the lymph nodes.
    • Autoimmune Disorders: Diseases like lupus and rheumatoid arthritis can cause systemic inflammation, leading to enlarged lymph nodes.
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Symptoms Associated with Armpit Lumps

The symptoms accompanying an armpit lump can vary based on the underlying cause. Common symptoms include:

  • Pain or Tenderness: This is especially common if the lump is due to an infection or abscess. The area might also be warm to the touch.
  • Swelling: The lump may grow in size over time, indicating an underlying condition that requires attention.
  • Redness or Warmth: These signs suggest an infection or inflammation in the area.
  • Fever: Fever often accompanies infections and can be a sign of a systemic response to the infection.
  • Fatigue: Generalized fatigue can be a symptom of systemic infections, cancers, or autoimmune disorders.
  • Changes in Skin Texture: Dimpling, puckering, or other changes in the skin over the lump can be a sign of breast cancer.

How an Ultrasound Can Help with Diagnosis

Ultrasound imaging is a non-invasive and effective method for evaluating armpit lumps. Here’s how an ultrasound can be beneficial:

  1. Detailed Imaging:

    • Ultrasound provides high-resolution images of soft tissues, which helps in differentiating between cysts, solid masses, and swollen lymph nodes. It can show the size, shape, and composition of a lump, aiding in the diagnosis.

  2. Guidance for Biopsy:

    • If the lump appears suspicious, an ultrasound can guide a needle biopsy. This involves using a thin needle to extract a small sample of tissue from the lump for further examination. Ultrasound-guided biopsies are accurate and minimally invasive.

  3. Differentiation:

    • Ultrasound can help distinguish between benign and malignant lumps based on their appearance and characteristics. Benign lumps like cysts and lipomas often have distinct features that can be identified through ultrasound.

  4. Monitoring:

    • Ultrasound can be used to monitor the lump over time. This is particularly useful for lumps that are not immediately concerning but require periodic evaluation to check for any changes in size or characteristics.

  5. No Radiation:

    • Unlike other imaging techniques such as X-rays or CT scans, ultrasound does not use ionizing radiation. This makes it a safer option for repeated use, especially in sensitive areas like the armpit.
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What to Expect During and After Your Armpit Ultrasound

Ultrasounds are a preferred first step in diagnosing many armpit lumps because they are noninvasive and painless.

During Your Appointment

At London Private Ultrasound, your procedure will be conducted by a medical doctor who specializes in ultrasound imaging.

  1. Preparation:

    • A clear, hypoallergenic, water-based gel will be applied to the area under your arm. This gel enhances the quality of the images by helping the transducer glide smoothly over your skin. Although it may feel cool for a few seconds, most patients hardly notice it.

  2. Procedure:

    • You may be asked to move your arm slightly to obtain the clearest images. The entire process typically takes less than an hour.

  3. Results:

    • Your doctor will discuss the findings with you immediately after the ultrasound. We strive to provide you with a detailed report and images on the same day.

After Your Appointment

There is no downtime required following the ultrasound. You can resume your normal activities, whether it’s work, school, or home tasks, right away.

When to Schedule an Ultrasound for an Armpit Lump

You can schedule an ultrasound for an armpit lump anytime at London Private Ultrasound for your peace of mind.

Advantages of Private Ultrasound Services

  • Immediate Scheduling: No need to wait for a referral or NHS approval.
  • Same-Day Results: You’ll know immediately whether further treatment is necessary or if you should follow up with another physician.
  • Continued Care: Getting an ultrasound here does not prevent you from continuing care with your regular NHS provider.

When to Seek an Ultrasound

We recommend seeing your physician or scheduling an ultrasound as soon as possible if you experience any of the following:

  • An armpit lump that persists longer than two weeks.
  • A lump that is growing in size.
  • A previously removed lump that has grown back.
  • Worsening symptoms, such as increasing pain.
  • Pain accompanying the armpit lump.
  • Fever or other signs of infection.

To book online select the date and time that suits you best – alternatively, please contact us with any questions via the chat, call or email links provided.

Address: 27 Welbeck Street, London, W1G 8EN

Telephone: 020 7101 3377

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