Rectus sheath hematoma

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Obesity, Sleep & Internal medicine
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Rectus sheath hematoma
Synonyms	Hematoma of the rectus sheath
Pronounce	N/A
Specialty	General surgery, Emergency medicine
Symptoms	Abdominal pain, palpable abdominal mass, bruising
Complications	Hypovolemic shock, abdominal compartment syndrome
Onset	Sudden
Duration	Varies
Types	N/A
Causes	Trauma, anticoagulation, coughing, pregnancy
Risks	Anticoagulant therapy, older age, female gender
Diagnosis	Ultrasound, CT scan
Differential diagnosis	Appendicitis, ovarian torsion, abdominal aortic aneurysm
Prevention	N/A
Treatment	Conservative management, surgery if severe
Medication	N/A
Prognosis	Generally good with treatment
Frequency	Rare
Deaths	N/A

CT of rectus sheath hematomas

CT axial view with active bleeding

File:UOTW 13 - Ultrasound of the Week 1.webm Rectus Sheath Hematoma (RSH) is a rare, often misdiagnosed condition that involves the accumulation of blood within the Rectus sheath, the fibrous layer of connective tissue that encloses the Rectus abdominis muscle. This condition is typically caused by damage to the Superior epigastric artery or Inferior epigastric artery, which supply blood to the rectus abdominis muscle.

Etiology

The most common causes of Rectus Sheath Hematoma are trauma, anticoagulation therapy, and strenuous physical activity. Other factors that may contribute to the development of this condition include pregnancy, surgery, and certain medical procedures such as coughing, Valsalva maneuver, and Colonoscopy.

Clinical Presentation

Patients with Rectus Sheath Hematoma typically present with sudden onset of abdominal pain, often accompanied by a palpable abdominal mass. Other symptoms may include nausea, vomiting, and signs of Hemodynamic instability such as tachycardia and hypotension.

Diagnosis

Diagnosis of Rectus Sheath Hematoma can be challenging due to its nonspecific clinical presentation. It is often misdiagnosed as other conditions such as acute Appendicitis, Cholecystitis, or Diverticulitis. Diagnostic tools that can aid in the identification of this condition include Ultrasound, CT scan, and MRI.

Treatment

Treatment of Rectus Sheath Hematoma is largely dependent on the severity of the condition. Conservative management, including bed rest, analgesia, and cessation of anticoagulation therapy, is often sufficient for small hematomas. Larger hematomas may require surgical intervention, such as Embolization or Laparotomy.

Prognosis

The prognosis for Rectus Sheath Hematoma is generally good, especially when the condition is diagnosed and treated promptly. However, complications can occur, particularly in patients with large hematomas or underlying medical conditions.

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