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Subcutaneous emphysema of the leg: Could be a …

Open Journal of Clinical Diagnostics, 2012, 2, 56-58 OJCD. Published Online September 2012 ( ). Subcutaneous emphysema of the leg: Could be a fatal condition Mahmoud A. Hafez The Orthopaedic Department, October 6 University, Cairo, Egypt Email: Received 1 May 2012; revised 8 June 2012; accepted 3 July 2012. ABSTRACT 2. PATIENT AND METHODS. Gas in the leg is not always a gas gangrene. Abdomi- A 70-year-old woman referred to the Emergency De- nal infection with gas forming organisms may spread partment by her family doctor as a possible septic arthri- to the thigh & leg.

Subcutaneous emphysema of the leg is a recognised but rare complication of gastrointestinal perforation, where the gas originates directly from the perforated viscus.

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Transcription of Subcutaneous emphysema of the leg: Could be a …

1 Open Journal of Clinical Diagnostics, 2012, 2, 56-58 OJCD. Published Online September 2012 ( ). Subcutaneous emphysema of the leg: Could be a fatal condition Mahmoud A. Hafez The Orthopaedic Department, October 6 University, Cairo, Egypt Email: Received 1 May 2012; revised 8 June 2012; accepted 3 July 2012. ABSTRACT 2. PATIENT AND METHODS. Gas in the leg is not always a gas gangrene. Abdomi- A 70-year-old woman referred to the Emergency De- nal infection with gas forming organisms may spread partment by her family doctor as a possible septic arthri- to the thigh & leg.

2 We report a case of critically ill tis or fracture of the left hip. She has had increasing pain patient who presented to the emergency department in her left leg for 3 weeks and recalled a minor fall 5. with features suggestive of septic arthritis of the left days earlier followed by inability to weight bear. Inciden- hip. Assessment and further intervention revealed tal diagnosis of asymptomatic kidney stone had been made Subcutaneous emphysema of the leg secondary to an six months prior with no urinary symptoms or diabetes. infection of a previously asymptomatic staghorn cal- On presentation, the patient was cachectic, pale and culus.

3 X-ray of the abdomen showed a left renal stone apathetic. Blood pressure was 70/51 mmHg, pulse rate and gas in the soft tissue planes of the left retroperi- 110/min, temperature C. Abdomen was soft with toneal space while X-ray of the left femur showed gas normal bowel sounds but mild tenderness on the left re- in the soft tissue planes of the left hip region and nal angle. Rectal examination was unremarkable. The left whole thigh with no bony or joint abnormality. Such thigh and leg were swollen with redness and tenderness case has not been reported in English literature before.

4 Over the groin and lateral aspect of the hip. The striking Physicians and surgeons should be aware of this con- feature was crepitus felt under the skin, indicating sub- dition that Could be fatal but curable by early inter- cutaneous emphysema along the lateral aspect of the hip, vention. thigh, calf and down to the ankle. Hip joint was only painful at the extreme range of motion. Keywords: Subcutaneous emphysema ; Asymptomatic Radiography showed a left renal stone and gas in the Stag-Horn Calculus; Tissue Gas; Septicaemia soft tissue planes of the left retroperitoneal space (Figure 1).

5 The gas was extending to the left hip region and down to the left lower thigh but there was no bony or joint ab- 1. INTRODUCTION normality (Figure 2). WBC was 36,600/ml, random Gas in the leg often prompts the physician to the diagnosis of gas gangrene. However, other sources of gas forma- tion such as trauma, gastrointestinal perforation or non- clostridial gas-forming infection (particularly in diabetics). should be considered. Subcutaneous emphysema and cellulitis of the lower limb secondary to intra-abdominal pathology is a recognised condition [1-7]. Several cases have been reported in which the primary disease was perforation of the gastrointestinal tract, where the gas Could originate directly from the perforated viscus and the majority of the reported cases caused a diagnostic dilemma.

6 We describe a new cause and mechanism of subcuta- neous emphysema where the gas originated from renal infection complicating a silent kidney stone in a non Figure 1. X-ray of the abdomen showing a left renal stone and gas diabetic patient. This case posed significant diagnostic in the soft tissue planes of the left difficulty and presented with late and fatal complications. retroperitoneal space. OPEN ACCESS. M. A. Hafez / Open Journal of Clinical Diagnostics 2 (2012) 56-58 57. our case the leg emphysema was a presenting sign of a silent staghorn calculus in non-diabetic patient.

7 This re- presents a new cause and mechanism for the formation of leg emphysema . The diagnosis was difficult as the pa- tient was initially referred with possible septic arthritis of the left hip and on arrival to hospital, gas gangrene was suspected. She had no urinary symptoms and there was a lack of abdominal signs. Review of English literature revealed that such case has not been reported before. Surgeons should consider different sources of gas for- mation; trauma, gastrointestinal perforation or non-los- tridial gas-forming infection (particularly in diabetics).

8 Trauma, without infection, has been recognised as a source f gas formation [2]. Figure 2. X-ray of the left femur show- ing gas in the soft tissue planes of the Retroperitoneal infections can spread into the thigh, left hip region and whole thigh with no through the psoas muscle, leading to the formation of bony or joint abnormality. psoas abscesses. Altemeier and Alexander [3] studied 189 cases of retroperitoneal abscesses. Only one of their plasma glucose mmol/l, urea mmol/l and creat- cases showed Subcutaneous emphysema of left thigh and inine 113 mmol/l. pelvis secondary to a ruptured carcinoma of the colon.

9 Owing to the fact that the patient presented with signs Perforation or fistula of gastrointestinal tract has been of septic shock at evening time, a decision was made for reported by several authors [4-7] as a source of subcuta- urgent incision and drainage with no delay for further neous emphysema and cellulitis of the lower limb. The investigations. Fluid and antibiotic therapy was promptly majority of the reported cases caused a diagnostic di- commenced. Incisions for drainage were made over the lemma. point of maximum swelling and fluctuation in the left Urinary pathology may indirectly cause emphysema of groin, lateral and medial aspects of the thigh and medial the thigh through a fistula into the gastrointestinal tract.

10 Aspects of the leg. Exploration revealed gas in the subcu- Gow [8] reported a case of reno-inguinal fistula in a dia- taneous tissues with large amounts of thick white pus and betic patient who had a periureteric abscess that perfo- tissue necrosis that was sent for culture and histopathol- rated into the caecum and produced a swelling and ogy. The hip joint felt normal, but the pus extended into crepitus in the right groin. Possibility of benign causes the retroperitoneal space up to the left kidney and a loin should be borne in mind to prevent unnecessary amputa- incision drained a large volume of pus.


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