When you're checking your body, or just casually, and find a lump in your breast, it's normal to feel a lot of fear. "Is this cancer?" is the first question that comes to mind. That fear is very reasonable. But did you know that not all lumps in the breast are cancer? Today we're talking about one such harmless, but often frightening lump. This is called PASH.
Simply put, what is PASH?
The full name of PASH is ``Pseudoangiomatous Stromal Hyperplasia.`` Although the name is a bit complicated, its meaning is very simple. This is a benign (non-cancerous) lump that develops in the breast tissue. To be precise, these lumps are made up of a protein called ``collagen`` found in our body and its associated cells.
It's so common that studies have found that PASH occurs in about 23% of breast tissue samples. This means that most women will develop a lump like this at some point in their lives. These are not harmful.
So why is PASH associated with cancer?
Here's the important thing. Sometimes a PASH lump can be confused with a very rare type of cancer called `Angiosarcoma.` Angiosarcoma is a cancer that can form in the blood vessels of the breast. Because the two can look similar on some tests, doctors are very careful.
So, if you see something that looks like a PASH on your mammogram (an X-ray of your breasts), your doctor won't conclude that you don't have cancer until they are 100% sure. They want to be sure that it is PASH or something else.
But remember, the chance of a PASH lump turning into cancer is very, very low. Also, it is very rare to see PASH lumps coexisting with breast cancer.
Who is more likely to develop PASH?
This condition is most common in women between the ages of 30 and 50. But that doesn't mean it can't happen to others. There have been reports of PASH in girls as young as 14 and in older women between the ages of 51 and 67.
Surprisingly, PASH can also occur in men. However, it most often occurs in men who have a condition called `Gynecomastia`. `Gynecomastia` is the enlargement of male breast tissue due to hormonal influences. This suggests that PASH has a hormonal connection.
What is the specific cause of PASH?
To be honest, the exact cause of PASH is still unknown, but researchers largely believe that it is influenced by hormones .
For example, some women's PASH lumps may swell with their monthly menstrual cycle. There have also been some cases of PASH being linked to birth control pills and hormone replacement therapy (HRT). This is still being researched.
What are the symptoms of PASH? How do we know?
Most of the time, PASH lumps are very small and can only be seen under a microscope (`microscopic`). So many people don't feel any symptoms and don't even know they have one. They are found incidentally during a mammogram done for another reason.
But some PASH nodules can grow quite large, ranging from 1 to 12 centimeters. That's when we start to feel symptoms.
| Characteristic | Description |
|---|---|
| Feeling a lump in the hand | It feels like a hard lump that can be felt in the hand, usually round or oval in shape. |
| Moving | These lumps can move within the breast tissue. This means they don't always stay in the same place. |
| Pain | PASH lumps usually do not cause any pain or discomfort. However, if the lump becomes very large, you may feel some discomfort. |
| Size change | Sometimes the size of these lumps can change, sometimes a little quickly. But this change in size is not dangerous. |
How to accurately confirm PASH status?
If you have a lump in your breast, your doctor will recommend several tests to confirm whether it is PASH or not.
- Mammogram or MRI: These take detailed images of breast tissue to check the nature of the lump.
- Ultrasound Scan: This uses sound waves to examine breast tissue. It can help determine whether a lump is solid or fluid-filled.
- Core Biopsy: This is the most definitive diagnostic method. In this, a small, hollow needle is used to remove a very small piece of tissue from the lump and examine it under a microscope. The type of cells in that piece of tissue can be used to determine with 100% certainty whether it is PASH or something else.
- Surgical removal: Sometimes, if it is difficult to confirm with a biopsy, the doctor may decide to surgically remove the entire lump for examination.
Does PASH require treatment?
Here's the good news. Most of the time, once you've been diagnosed with PASH, you won't need any treatment. Your doctor will often say, "Let's just watch this." That means keeping an eye on the lump during your annual mammogram.
However, very rarely, surgery may be required to remove the lump. This is for the following reasons:
1. If the lump is very large and you feel discomfort or pain.
2. If you are not 100% sure that this is PASH even after testing, remove that doubt.
This surgery is very simple. It involves removing the tumor and a small amount of surrounding tissue to prevent it from growing back. The chance of a PASH tumor coming back after surgery is as low as 15% to 22%.
Take-Home Message
- PASH is a very common, non-cancerous (harmless) lump that occurs in the breast.
- If you find a lump in your breast, don't panic, but definitely see a doctor for advice. Never ignore it.
- A PASH is very unlikely to become cancerous. It is not considered a pre-cancerous condition.
- Tests such as `Mammogram`, `Ultrasound`, and `Core Biopsy` are essential for an accurate diagnosis.
- Often, no treatment is required for PASH, and it is sufficient to simply have it monitored by a doctor.
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