Shown below is an algorithm summarizing the diagnosis of abdominal mass according the the [...] guidelines.
| | | Abdominal mass as presentation/ incidental finding | | |
| | | | | | | | | |
| | | History and brief physical exam | | |
| | | | | | | | | | | |
| | | | | |
| Hemodynamic instability | | Stable |
| {{{ ! }}} | | | {{{ ! }}} | | | |
| | | | | | | | |
Abbreviations: ACS: Acute coronary syndrome; AAA: Abdominal aortic aneurysm; RUQ: Right upper quadrant; RLQ: Right lower quadrant; LUQ: Left upper quadrant; LLQ: Left lower quadrant
| | | | | | | | | | | | | Characterize the mass:
- ❑Pulsatile mass
- ❑Constant mass
Associated pain:
- ❑ Site (eg, a particular quadrant or diffuse, a change in location may reflect progression of the disease
- ❑ Onset (eg, sudden, gradual)
- ❑ Quality (eg, dull, sharp, colicky, waxing and waning)
- ❑ Aggravating and relieving factors (e.g, Is the pain related to your meals?)
- ❑ Intensity (scale of 0-10/ 0-5 with the maximum number; 10/5 being the worst pain of life)
- ❑ Time course (eg, hours versus weeks, constant or intermittent)
- ❑ Radiation (eg, to the shoulder, back, flank, groin, or chest)
Associated symptoms
- ❑ Shortness of breath
- ❑ Altered mental status
- ❑ Nausea & vomiting
- ❑ Diaphoresis
- ❑ Fever
- ❑ Hematuria
- ❑ Anorexia
- ❑ Bloody stool
- ❑ Weight loss
- ❑ Vaginal discharge
- ❑ Penile discharge
- ❑ Jaundice
- ❑ Mal-digestion
- ❑ Flatulence
- ❑ Fatigue
- ❑ Scrotal pain/swelling
- ❑ Recent trauma
- ❑ Symptoms suggestive of sepsis
Detailed history:
- ❑ Age (Patients above 50 years old are more likely to have severe diseases or cancers, such as ruptured abdominal aortic aneurysm or colon cancer)
- ❑ Past medical history (to exclude risk factors for cardiovascular diseases or peripheral vascular disease)
- ❑ Past surgical history (for previous abdominal surgeries)
- ❑ Menstrual and contraceptive history (pregnancy should be excluded in all women of childbearing age with abdominal mass)
- ❑ Social history (alcohol abuse predispose to pancreatitis and hepatitis, smoking also predisposes to different types of cancers, eg. cancer bladder, which may cause abdominal pain)
- ❑ Occupational history (exposure to chemicals or toxins)
- ❑ Travel history
- ❑ Medications (for over the counter drugs as
| | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | Examine the patient:
❑ Vital signs
- ❑ Temperature
- ❑ Heart rate (tachycardia)
- ❑ Blood pressure (hypotension)
- ❑ Respiratory rate (tachypnea)
❑ Skin
- ❑ Diaphoresis
- ❑ Pallor
- ❑ Jaundice
- ❑ Dehydration
❑ Inspection
- ❑ If the patient is lying still in bed with knees bent, this is suggestive of organ rupture and resulting peritonitis
- ❑ Signs of previous surgery
- ❑ Abdominal pulsations
- ❑ Signs of systemic disease eg,
- ❑ Pallor, suggestive of bleeding
- ❑ Spider angiomata, suggestive of cirrhosis
❑ Auscultation
- ❑ Abdominal crepitations
- ❑ Reduced bowel sounds
- ❑ Increased bowel sounds
- ❑ Bruit, suggestive of abdominal aortic aneurysm
❑ Palpation
- ❑ Rigidity
- ❑ Guarding
- ❑ Abdominal tenderness
- ❑ Distension
- ❑ Detection of masses on palpating the abdomen
- ❑ Carnett's sign
❑ Psoas sign (suggestive of retrocecal appendix)
❑ Cullen's sign
❑ Grey-Turner's sign
❑ Digital rectal exam (tenderness may be present in retrocecal appendicitis)
❑ Pelvic exam in females
❑ Testicular examination in males
❑ Cardiovascular system
❑ Respiratory system
❑ Anorectal (bleeding)
❑ Signs of sepsis: tachycardia, decreased urination, and hyperglycemia, confusion, metabolic acidosis with compensatory respiratory alkalosis, low blood pressure, decreased systemic vascular resistance, higher cardiac output, and coagulation dysfunctions
| | | | | |
| | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | Consider extraabdominal differential diagnosis: ❑ aaaa | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | ❑ Assess hemodynamic stability | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | If the patient is unstable, Stabilize the patient: ❑ Establish two large-bore intravenous peripheral lines ❑ NPO until the patient is stable ❑ Supportive care (fluids and electrolyes as required) ❑ Place nasogastric tube if there is bleeding, obstruction, significant nausea or vomiting ❑ Place foley catheter to monitor volume status ❑ Cardiac monitoring ❑ Supplemental oxygen as needed ❑ Administer early antibiotics if indicated | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | Signs of peritonitis or shock ❑ Fever ❑ Abdominal tenderness ❑ Abdominal gaurding ❑ Rebound tenderness ( blumberg sign) ❑ Diffuse abdominal rigidity ❑ Confusion ❑ Weakness ❑ Low blood pressure ❑ Decreased urine output ❑ Tachycardia | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | |
| | | | | | No | | | | | | | | | | | | | Yes | | | | | | | |
| | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |