What are the typical symptoms associated with splenic lesions?

Symptoms of Splenic Lesions

Splenic lesions most commonly present with left upper quadrant (LUQ) pain, often accompanied by referred left shoulder pain (Kehr's sign), though many remain asymptomatic and are discovered incidentally on imaging. 1

Primary Clinical Presentations

Pain Characteristics

• LUQ pain is the predominant symptom of splenic pathology, occurring in the majority of symptomatic patients and resulting from capsular distension, infarction, or inflammation. 2
• Kehr's sign—referred pain to the left shoulder—is a classic indicator of splenic capsular irritation from infarction, subcapsular hematoma, or impending rupture and should prompt urgent evaluation. 3, 4
• Pain severity varies with the underlying pathology: acute, severe pain suggests infarction or rupture, while chronic, dull discomfort may indicate splenomegaly from infiltrative disease. 2

Constitutional Symptoms

• Low-grade fever occurs in approximately 40-50% of patients with splenic lesions, particularly with infarction, abscess, or inflammatory pseudotumor. 5, 6
• Night sweats and persistent fever suggest splenic hamartoma or inflammatory pseudotumor, especially when accompanied by progressive splenomegaly. 6
• Fever with LUQ pain mandates urgent imaging to exclude splenic abscess, which requires early drainage to prevent rupture and peritonitis. 1, 3

Hematologic Manifestations

• Anemia is present in 53% of patients with splenic infarction and may indicate splenic sequestration, hypersplenism, or underlying hematologic disorders. 2
• Thrombocytopenia occurs with splenic hamartoma and hypersplenism, resolving after splenectomy in symptomatic cases. 6
• Leukocytosis is found in 49% of splenic infarction cases, reflecting the inflammatory response to tissue necrosis. 2
• Acute drop in hemoglobin/hematocrit suggests splenic sequestration or active bleeding, both life-threatening emergencies requiring immediate intervention. 3, 4

Hemodynamic Instability

• Tachycardia or hypotension indicates occult hemorrhage from splenic rupture or sequestration and warrants urgent imaging and surgical consultation. 3, 4
• In sickle cell disease, acute LUQ pain with sudden hematocrit drop signals splenic sequestration, which increases the risk of shock and death. 1

Asymptomatic Presentations

• Many splenic lesions remain asymptomatic and are discovered incidentally on imaging performed for unrelated indications, particularly hamartomas and small benign lesions. 6, 7
• Physical examination of the LUQ has poor inter-rater reliability (< 5% of abdominal pain truly localizes there), making imaging essential rather than relying on clinical findings alone. 3, 4

Age-Specific Considerations

Pediatric Patients

• In adolescents, splenic trauma presents with LUQ pain associated with referred left shoulder pain, hypovolemic shock, or generalized abdominal pain. 8
• Neonatal splenic injury may manifest only as shock, abdominal rigidity, or altered mental status, representing a unique diagnostic challenge. 8
• Nearly half of pediatric splenic hamartoma cases are symptomatic, compared to most adult cases being incidental findings. 6
• Multiple splenic nodules with intermittent LUQ pain in children should prompt consideration of Crohn disease, even before gastrointestinal symptoms appear. 9

Elderly Patients

• Elderly patients are at especially high risk for delayed diagnosis because they often provide unreliable histories and have multiple comorbidities that mask typical findings. 4

Specific Lesion Presentations

Splenic Infarction

• Left upper quadrant pain is the predominant symptom in 90% of cases, with symptoms typically resolving in 7-14 days with conservative management. 2
• Patients under 40 years most often have associated hematologic disorders, while those over 41 years typically have embolic events as the underlying cause. 2

Splenic Abscess

• Fever with LUQ pain in immunocompromised patients, those with known malignancy, or recent surgery/trauma strongly suggests abscess formation. 1, 3

Inflammatory Pseudotumor

• Persistent anemia, raised inflammatory markers, and polyclonal hypergammaglobulinemia characterize splenic inflammatory pseudotumor, with complete symptom resolution following splenectomy. 5

Splenic Hamartoma

• Progressive splenomegaly over years with low-grade fever, night sweats, and thrombocytopenia suggests splenic hamartoma in pediatric patients. 6

Critical Pitfalls to Avoid

• Do not rely on physical examination alone to exclude splenic pathology; the low reliability of LUQ examination, especially in elderly patients, mandates early imaging when splenic lesions are suspected. 3, 4
• Absence of fever does not exclude serious splenic pathology; infarction and early abscess formation can be afebrile. 3
• Do not dismiss vague LUQ discomfort in patients with splenomegaly, as capsular expansion increases the risk of rupture, infarction, and sequestration. 1