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Related Concept Videos

Appendicitis-I: Introduction01:22

Appendicitis-I: Introduction

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The appendix, a small, narrow, blind tube extending from the inferior part of the cecum, is widely regarded as a vestigial organ, having lost much of its original function through evolution. Despite its diminished role, the appendix can become inflamed, a condition known as appendicitis.
Etiology: Appendicitis can arise from various causes, primarily rooted in the obstruction of the appendix lumen. Factors contributing to this obstruction include fecal accumulation, lymphoid hyperplasia and, in...
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Appendicitis-II: Diagnostic Studies and Management01:29

Appendicitis-II: Diagnostic Studies and Management

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Diagnosing and managing appendicitis requires a structured and comprehensive approach that spans from initial assessment to postoperative care. Here is an overview of the process:
Diagnosing Appendicitis
It requires a multifaceted approach, starting with a detailed physical examination to pinpoint the location and nature of the pain and identify any associated symptoms. Laboratory tests play a crucial role. A complete Blood Count (CBC) typically reveals leukocytosis (an increased number of...
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Acute Pyelonephritis II: Diagnostic Studies and Management01:28

Acute Pyelonephritis II: Diagnostic Studies and Management

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Introduction:For diagnosing acute pyelonephritis, a comprehensive patient history is collected to identify symptoms such as dysuria, frequent or urgent urination, flank pain, or costovertebral angle (CVA) tenderness that may suggest a kidney infection.Physical ExaminationDuring the physical examination, CVA tenderness is assessed. This involves gentle percussion over the costovertebral angle, where tenderness often indicates a kidney infection.Diagnostic TestsUrinalysis: Used to identify white...
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Acute Pancreatitis II: Clinical Manifestations and Management01:30

Acute Pancreatitis II: Clinical Manifestations and Management

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Acute pancreatitis presents a complex medical emergency characterized by rapid onset inflammation of the pancreas, demanding timely diagnosis and management to prevent complications. The condition primarily manifests through severe upper abdominal pain that often radiates to the back. This pain intensifies following the consumption of fatty foods. Accompanying symptoms such as nausea, vomiting, abdominal distention, fever, dyspnea, cyanosis, and jaundice can vary in intensity but significantly...
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Muscles of the Abdomen01:21

Muscles of the Abdomen

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The abdominal wall encircles the abdominal cavity, providing flexible protection and shielding the internal organs from harm. It is bordered at the top by the xiphoid process and costal margins, at the back by the vertebral column, and at the bottom by the pelvic bones and inguinal ligament. The abdominal wall is divided into two regions — the anterolateral and posterior regions.
Anterolateral Region
The anterolateral region comprises five paired muscles classified into the lateral and...
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Updated: Mar 18, 2026

Posterior Approach for Debridement of the Psoas Abscess
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Psoas muscle abscess simulating acute appendicits: A case report.

Eugenio L C Miller1, Luiz F F Miller1, Jorge G Carvalho1

  • 1General Surgery Service of Municipal Hospital Moacyr Rodrigues do Carmo - Duque de Caxias, Rio de Janeiro, Brazil.

International Journal of Surgery Case Reports
|July 4, 2016
PubMed
Summary

Psoas abscess, a rare condition mimicking appendicitis, requires prompt diagnosis and surgical drainage. This case highlights the importance of advanced imaging like CT scans for accurate diagnosis and effective treatment of this uncommon infection.

Keywords:
AppendicitisPsoas abscessSurgery

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Area of Science:

  • Medical Case Reports
  • Surgical Case Studies
  • Infectious Disease Research

Background:

  • Psoas abscess is a rare condition with non-specific symptoms, often leading to diagnostic challenges.
  • It can present with pain in the hip, back, or abdomen, and may mimic other acute abdominal conditions.
  • Early diagnosis is crucial for effective management and to prevent complications.

Purpose of the Study:

  • To report a case of psoas abscess that initially presented with symptoms suggestive of acute appendicitis.
  • To emphasize the diagnostic utility of Computed Tomography (CT) scans in identifying psoas abscess.
  • To discuss the clinical presentation, diagnostic challenges, and management of psoas abscess.

Main Methods:

  • A 25-year-old male presented with right iliac fossa and lumbar pain, initially managed as suspected appendicitis.
  • Diagnostic workup included laboratory tests, abdominal ultrasound, and subsequently a contrast-enhanced abdominal CT scan.
  • Treatment involved surgical drainage of the abscess and antibiotic therapy.

Main Results:

  • Initial presentation mimicked acute appendicitis, leading to an appendectomy.
  • Post-operative worsening of symptoms prompted further investigation with CT scan, revealing a large psoas abscess.
  • Successful retroperitoneal drainage of 300ml purulent fluid and subsequent Penrose drain placement led to good recovery.

Conclusions:

  • Psoas abscess is an underdiagnosed condition that can present atypically, mimicking more common surgical emergencies like appendicitis.
  • CT scan is a valuable imaging modality for diagnosing psoas abscess, aiding in timely surgical intervention.
  • Effective treatment involves surgical drainage and appropriate antibiotic therapy.