Doctors Note Logo

Back

Published on: 4/7/2025

What Causes A Hard Lump Under Right Rib Cage?

A hard lump under the right rib cage can sometimes be due to a type of growth on the bone, like a tumor or cyst. These growths might be benign (non-cancerous) or less commonly more serious, so it is important to get them checked by a doctor.

answer background

Explanation

A lump near the right rib cage may be caused by abnormal growth from the bone. Research has shown that some people can get growths like giant cell tumors, aneurysmal bone cysts, or even intraosseous lipomas in their rib bones. A giant cell tumor is where many cells grow in a lump on the bone, while an aneurysmal bone cyst forms a bubble-like swelling in the rib. An intraosseous lipoma is a rare growth made up of fat cells that happens inside the bone. Most of these are benign, which means they are not cancer, but they might still need treatment or careful watching because they can cause pain, weakness in the bone, or other problems. If someone notices a hard lump in this area, it is important to see a healthcare provider. They can perform tests like imaging studies to understand what the lump is and decide on the best care plan. Always follow professional advice for any health concern.

(References)

  • Yang E, Li T, Katz A. A giant cell tumor of the bone in the rib cage left to proliferate unfettered for seven years to an extensive size. Respir Med Case Rep. 2021 May 1;33:101419. doi: 10.1016/j.rmcr.2021.101419. PMID: 34401267; PMCID: PMC8348908.

  • Kamdem M, El Hammoumi M, Amraoui M, Bhairis M, Oukabli M, Kabiri EH. Aneurysmal bone cyst: a rare surgical tumor of the rib. Kardiochir Torakochirurgia Pol. 2021 Dec;18(4):268-271. doi: 10.5114/kitp.2021.112198. Epub 2022 Jan 9. PMID: 35079273; PMCID: PMC8768859.

  • Sivrikoz MC, Döner E, Durceylan E. Intraosseous lipoma of the rib. Turk Gogus Kalp Damar Cerrahisi Derg. 2019 Oct 23;27(4):590-592. doi: 10.5606/tgkdc.dergisi.2019.18040. PMID: 32082933; PMCID: PMC7018170.

Tell your friends about us.

We would love to help them too.

smily Shiba-inu looking

For First Time Users

What is Ubie’s Doctor’s Note?

We provide a database of explanations from real doctors on a range of medical topics. Get started by exploring our library of questions and topics you want to learn more about.

Learn more about symptoms

Swelling under the right ribs

Not sure about the cause of your current symptoms?

AI Symptom Check

Try our AI-based symptom check

With an easy 3-min questionnaire, you can get an free AI-powered report on possible causes


Tips to try:

  • Provide specific, detailed info about all symptoms you have.
  • Give accurate information about yourself including current conditions.
  • Answer all follow-up questions

Purpose and positioning of servicesUbie Doctor’s Note is a service for informational purposes, and the provision of information by physicians, medical professionals, etc. is not a medical practice. The provision of information by physicians, medical professionals, etc. is not a medical treatment. If medical treatment is required, please consult your doctor or medical institution. We strive to provide reliable and accurate information, but we do not guarantee the completeness of the content. If you find any errors in the information, please contact us.