Lumps that originate from within the abdominal cavity do not appear on the skin surface unless they are large and because they are large they may distort the abdominal wall appearance.
Some large malignant tumors especially those that originate from fatty, fibrous or muscle tissues may take the whole of the abdomen while some tumors are restricted to one quadrant of the abdomen. The location of lump helps the doctor to understand which organs are possibly affected.
Right upper quadrant: Usually lumps from liver (cancer, portal hypertension, amyloidosis, sarcoidosis, myeloproliferative disease, leukemia), gallbladder (polyps, cancer, choledocholithiasis), kidney (calculus, hydronephrosis or intestine (Crohn’s disease) may appear in this region.
Left upper quadrant: Enlargement or tumor of the spleen, stomach (cancer), colon (colorectal cancer) or kidney (calculus, hydronephrosis) can cause a mass in this region.
Epigastrium: Tumors of the stomach (gastric adenocarcinoma), pancreas (abscess, pancreatic cancer).
Periumbilical: Hernia, aortic aneurysm, neuroblastoma.
Left lower quadrant: tumors of the ovary (cyst, cancer), colon (diverticulitis, colorectal cancer), Burkitt’s lymphoma (a rare tumor of the immune cells affecting the mesentery and ileo caecal valve).
Suprapubic and pelvis: distended bladder, pregnancy, a tumor of the uterus (fibroids, cancer), ovaries (cyst, cancer).
- Swelling in the affected area
- Pain or fullness in the abdomen
- Nausea or vomiting
- Irregular bowel movements
- Unintentional weight gain
- An inability to urinate or pass stool
- Lumps in the groin
- Bruising, rash or unusual paleness due to anemia
- Rectal bleeding
- Vaginal bleeding, especially if that happens more than twelve months after menopause
- Acid reflux and jaundice may be present, if the liver is involved
- Pain during urination along with increased or decreased urination
- The presence of fever or a rapidly growing, pulsating mass or the development of a new lump is a serious sign and requires immediate medical attention