CMAJ • January 31, 2006; 174 (3). doi:10.1503/cmaj.051046.
© 2006 CMA Media Inc. or its licensors
All editorial matter in CMAJ represents the opinions of the authors and not necessarily those of the Canadian Medical Association.
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Clinical Vistas

An elderly man with sudden-onset shortness of breath and hydropneumothorax

Tajender S. Vasu*, Jasjet Saluja*, David Landsberg{dagger} and Robert Lenox{ddagger}

*Department of Medicine, {dagger}Department of Critical Care, {ddagger}Division of Pulmonary and Critical Care, Department of Medicine, State University of New York Upstate Medical University, Syracuse, NY


Figure 116
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  		Fig. 1: Chest radiograph, showing air–fluid level.

 
An 87-year-old man was admitted to hospital for a work-up following a 3-week history of weakness and dizziness. He had experienced a 14-kg weight loss over the preceding 3 months. He denied abdominal or respiratory symptoms and fever, and the rest of his review of symptoms was unremarkable. His examination was normal except for some mild tenderness in the left upper quadrant. His leukocyte count was elevated (23.4 [normal 4–10] khcy 109/L), with neutrophilia (87% neutrophils [normal < 75%]); his other blood counts were unremarkable. A chest radiograph was normal.


Figure 216
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  		Fig. 2: CT scan of abdomen, showing large necrotic abscess.

 
On day 2 of his admission, the patient suddenly became short of breath, and a chest radiograph revealed a left-sided hydropneumothorax (not shown). A CT scan of his chest (Fig. 1) revealed an air–fluid level and findings suggestive of empyema. The fluid drained by a chest tube was turbid and foul smelling. Cultures revealed gram-negative enteric organisms, including Escherichea coli, Klebsiella sp and Enterococcus sp consistent with colonic flora. A CT scan of the abdomen (Fig. 2) showed a large abscess in the upper left quadrant of the abdomen and colonic diverticulitis. A gastrograffin enema (Fig. 3) revealed the presence of a fistulous tract, connecting the colon with the left pleural space. The patient underwent emergent colectomy with transverse colostomy. Total parenteral nutrition and broad-spectrum antibiotic therapy were started. Unfortunately, the patient died before thoracic surgery could occur. The surgical pathology findings were consistent with diverticulitis; findings at autopsy ruled out neoplasm as a cause of his colopleural fistula.


Figure 316
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  		Fig. 3: Gastrograffin enema showing spillage of gastrograffin (small arrows) into pleura through colopleural fistula. Large arrow points to drain inserted in diverticular abscess.

 

Colopleural fistula is exceptionally rare. It has occurred after traumatic rupture of the diaphragm,1 strangulation of part of the colon through a congenital Bochdalek (diaphragmatic) hernia2 and intra-abdominal surgery,3 but it can be idiopathic.

Acute empyema resulting from the sudden rupture of an adjacent abscess or viscera usually presents acutely with hyperpyrexia, chest pain, dyspnea and hemodynamic instability consistent with septic shock. Chest radiography may demonstrate an air–fluid level in the lung, with CT imaging showing disease on both sides of the diaphragm. A colopleural fistula should strongly be suspected as the cause of acute empyema if the fluid removed by a chest tube contains colonic flora. The diagnosis can be confirmed by demonstration of the fistulous tract with the use of radiologic studies such as a gastrograffin enema.

Total parenteral nutrition for complete bowel rest, fluid replacement therapy, and aggressive prevention and treatment of sepsis are indicated in the treatment of colopleural fistula. However, urgent surgical intervention is often required.


*    REFERENCES
Top
 REFERENCES
 

  1. Reddy SA, et al. check authors Colopleural fistula presenting as tension pneumothorax in strangulated diaphragmatic hernia. Report of a case. Dis Colon Rectum 1989;32:165-7.[Medline]
  2. Sinha M, Gibbons P, Kennedy SC, et al. Colopleural fistula due to strangulated Bochdalek hernia in an adult. Thorax 1989;44:762-3.[Abstract/Free Full Text]
  3. Papagiannopoulos K, Gialvalis D, Dodo I, et al. Empyema resulting from a true colopleural fistula complicating a perforated sigmoid diverticulum. Ann Thorac Surg 2004;77:324-6.[Abstract/Free Full Text]



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