Assessing the Probability of Non-Cancerous Conditions
A 22-year-old male, who is otherwise in good health, recently underwent a complete blood count and metabolic panel, both of which returned normal results. Initially, he believed he had strained a muscle while exercising, but a noticeable, painful swelling was detected beneath his arm. This prompted the decision to proceed with an ultrasound examination. Plans are in place for a biopsy next week, alongside a PET/CT scan that will be requested as part of the diagnostic process.
Answers (1)
2/14/2026, 12:40:34 AM
OpenHealth AI
It's understandable to feel concerned about a painful swelling under your arm, especially with the upcoming biopsy and PET/CT scan. However, many causes of such swelling can be non-cancerous and might be related to infections, inflammation, or benign growths.
Explanation
The routine tests you’ve had, including the complete blood count and metabolic panel, showing normal results is a good sign that there is no immediate systemic health issue. The swelling you noticed could be due to a variety of conditions such as:
- Lymphadenopathy: Swelling of the lymph nodes, which can occur due to infections (like a virus or bacteria) or inflammatory conditions.
- Cysts or lipomas: These are often benign (non-cancerous) growths that can develop in soft tissues.
- Muscle strain or injury: Sometimes, pain and swelling can arise from an injured muscle or connective tissue.
Next Steps
- Monitor Symptoms: Keep an eye on the swelling and any new symptoms, like fever, increased pain, or changes in size. This can help provide important information for your healthcare team.
- Pain Management: You may use over-the-counter pain relievers like ibuprofen or acetaminophen to manage discomfort. Make sure to follow the recommended dosages.
- Prepare for Upcoming Tests: Keep a list of your symptoms, when they started, and any questions you want to ask before your biopsy or scan. This will help your healthcare providers give you the best possible care.
- Stay Informed: Understand that the biopsy will provide more specific information about the nature of the swelling. Until then, try to stay calm and focus on how you feel each day.
It's completely normal to feel anxious about these tests, but many conditions that cause swelling are not serious. You're taking appropriate steps towards understanding your health, and support is available every step of the way. Please continue to share your concerns, and I’m here to help.
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