One-stage operation for hydatid disease of lung and liver: principles of treatment

Liver and lung hydatid cysts with transdiaphragmatic rupture treated by radical surgery

Hydatidosis is a parasitic disease caused by Echinococcus granulosus, a tapeworm that is endemic in certain parts of the world. We present a case of hepatopulmonary hydatidosis with diaphragm involvement and close contact with the suprahepatic inferior vena cava treated with radical surgery. We discuss therapeutical surgical options (approach and type of surgery).

Single-stage versus two-stage surgery of pulmonary and hepatic hydatid cysts

Introduction

Concomitant lung and liver hydatid cyst is a rare condition. Most surgeons agree that both sites should be resected in one-time surgery.

Aim

We present a case series of hepatic and pulmonary hydatid cyst treated in one-stage surgery (OSS) compared with patients who underwent two-stage surgery (TSS).

Material and methods

This retrospective study included 47 patients separated into two groups (33 TSS and 14 OSS) between 2008 and 2019. Data on clinical symptoms, sites, radiological features, techniques, postoperative complications, mean hospital stay and outcome were analyzed separately for TSS and OSS procedures.

Results

A total of 33 patients who underwent TSS (70.2%) were compared to 14 patients operated on by OSS (29.8%). No significant differences were found between groups for age (45.3 vs. 42.7, p = 0.45), sex (male: 57.6% vs. 64.2%) and socio-geographic status (urban: 72.7% vs. 78.6%). But there were more postoperative complications (24.3% vs. 14.3%, p = 0.036) in the TSS group, and operative duration (154 minutes vs. 122 minutes, p = 0.047), postoperative hospital stay (13.8 days vs. 8.7 days, p = 0.022), and interruption of activities and work (56 days vs. 31 days, p = 0.045) were longer in the TSS group. There was no difference in postoperative mortality between the 2 groups.

Conclusions

Single-stage surgical management by trans-thoraco-phrenotomy can be recommended to treat dual-seat hepatic and pulmonary hydatid disease with fewer complications and a rapid return to work. This technique is easier and safer for right lung and liver dome hydatid cysts.

Single-Stage Transthoracic Surgery of Right Pulmonary and Hepatic Hydatid Cysts: A Retrospective Study of Fourteen Patients

Background: The association of pulmonary and hepatic hydatid cysts is rare. Managing this condition with low mortality and complications is a challenge. The aim of this study is to put forward our experience in managing both sites in single-stage posterolateral thoracotomy. Patients and Methods: A retrospective study of 14 patients who underwent single-stage posterolateral thoracotomy and phrenotomy to treat right lung and liver hydatid cysts between January 2010 and December 2019 were reviewed. Results: Fourteen of 135 patients (10.4%) with double location of hydatid disease were treated in our department for pulmonary hydatid cysts in the same period. There were nine males and five females who were 20 to 72 years old (average age, 42.7 years). Chest computed tomography (CT) and abdominal scan were performed in all cases. The surgical approach was posterolateral thoracotomy and phrenotomy without laparotomy in all cases. Conservation of hepatic and pulmonary parenchymas was possible in 13 patients (92.8%). Average operative time was 122 minutes (range, 95-210 minutes) and the average post-operative hospital stay was 8.7 days. Post-operative complications occurred in two (14.3%) cases, one was atelectasis and the other persistent biliary and air leakage. There was no post-operative mortality. All patients received post-operative medical treatment for three to six months and there was no recurrence after an average follow-up of 26 months. Conclusion: Single-stage thoracotomy is a better option than thoracotomy and laparotomy for the management of double located hydatid cysts. It has a lower complication rate, shorter hospital stay, and rapid resumption of normal activity.

One-stage surgery for both hepatic and left ventricular hydatid cysts using transthoracic route

Hydatid disease is a major health problem. Multiorgan involvement including the heart and the liver is a very rare presentation. Management of multivisceral hydatidosis through a sole incision should be considered when possible. Median sternotomy is considered in our case.

Pulmonary Echinococcosis or Lung Hydatidosis: A Narrative Review

Background: Lung hydatidosis is a zoonosis related to infection by the Echinococcus tapeworm species. Lung involvement in this condition is second only to the liver echinococcosis. Diagnosis ordinarily results from an accidental finding in a direct chest radiograph evaluation because of the delayed growth of the cysts. Moreover, a consistent treatment regimen or approach may not be feasible because of the variability of pulmonary echinococcosis. In this review, we expect to sum up the main features of lung hydatidosis with a perspective on medical and surgical treatment. Methods: Cochrane Library and PubMed were the databases used to perform a narrative literature review. Search terms included "pulmonary echinococcosis" and "lung hydatidosis." The MeSH terms were "lung" [All Fields] AND {"echinococcosis" [MeSH Terms] OR ("hydatidosis" [All Fields] OR "pulmonary" [All Fields] AND "echinococcosis" [All Fields] OR "hydatidosis." A search period from September 1980 to May 2020 was chosen to compare studies from different decades, given the changes in pulmonary echinococcosis management. Results: A uniform treatment regimen or approach may not be feasible because of the variability of pulmonary echinococcosis. No clinical trials have analyzed and compared all the diverse treatment approaches. Cyst size, characteristics, position in the lung and clinical presentation, and the availability of medical/surgical expertise and equipment are the mainstays of echinococcosis management. When feasible, surgery is as yet the principal therapeutic choice to eliminate the cysts; anti-parasitic drugs may minimize complications during high-risk surgery or be used as definitive therapy in some instances with contraindications to surgery. Conclusions: Lung hydatidosis management must become less heterogeneous. We support treatment directed to the subject established on the clinical scenario, host factors, and surgical risk. Strict cooperation in this process between infectious disease specialists and surgeons may optimize best practices to help create shared practical guidelines to simplify clinicians' decision-making. Furthermore, we need a consensus for lung hydatidosis treatment and inserting this disease to global surgery agenda will have a positive impact on acquiring high-quality data that enables us to create an evidence-based guideline for this disease.

Single-centre experience in treatment of multiple-site hydatid disease in a tertiary care centre of Eastern India

Background

Single-stage surgery for multiple-site hydatid cysts especially for the lung and liver is a less performed approach.

Objective

The aim of the study is to assess the feasibility of this approach in terms of outcome.

Methods

We studied 42 patients with multiple-site hydatid cysts over a period of 36 months admitted or referred to the department of CTVS of a tertiary-level hospital of Eastern India.

Results

Maximum numbers of cases were found in the age group of 11-20 years comprising 35.71% of the patient population with a female preponderance (18 versus 24). Chest pain was the commonest presenting feature (66.66%) followed by cough (52.38%), haemoptysis and dyspnoea 33.33% respectively. Eosinophilia was observed in four patients (9.52%). Twenty-two patients had simultaneous occurrence of pulmonary and hepatic hydatid disease (52.38%). Fourteen patients had only pulmonary involvement (33.33%). Chest wall (including the parietal pleura) was involved in six patients (14.28%). 23.03% patients presented with complicated cysts in the form of rupture into the pleura (19.35%) or the peritoneum (9.68%). Eighteen patients (42.86%) were operated via posterolateral thoracotomy and 18 (42.86%) were operated via thoracotomy with phrenotomy. Twenty-four patients (57.14%) underwent cyst excision by Barrett's technique. 59.09% patients underwent cystostomy for hepatic hydatids and five underwent omental packing (22.72%). Prolonged air leak was the commonest complication (35.71%). The mean operative time for thoracotomy was 136.87 min (~ 140 min) and 145 min for thoracotomy with phrenotomy. Only five patients (11.9%) required a prolonged intensive -treatment unit (ITU) stay of > 2 days and four had prolonged hospital stay > 15 days (1 of bronchopleural fistula, 1 of anaphylactic shock and 1 of bilateral lung cyst excision with postoperative lobar collapse).

Conclusion

Single-stage surgery is a viable option for multiple- and multi-site hydatids.

Surgery for parasitic lung infestations: roles in diagnosis and treatment

Pulmonary parasitic infestations are a worldwide problem associated with significant morbidity and socioeconomic impact. They are known to have varied clinical presentations and radiological appearances. Prevention of parasite transmission and medical treatment of cases form the two pillars of control of these diseases. The role of surgery is limited to the diagnosis and definitive treatment of the minority of pulmonary parasitic afflictions, most notably hydatidosis. Despite surgery being established as the treatment of choice in pulmonary hydatid cysts (PHCs) for over half a century, variations and unresolved controversies persist regarding the best surgical technique. Complications brought on by cyst rupture, multiplicity and multi-organ involvement add complexity to treatment decisions. The development of video-assisted thoracoscopic surgery (VATS) brings the promise of reduced peri-operative morbidity but is yet to be universally accepted as a safe technique. In this review, we endeavor to discuss the common pulmonary infestations focusing on the current trends and controversies surrounding surgery for PHC.

Genetic characterization of human hydatid cysts shows coinfection by Echinococcus canadensis G7 and Echinococcus granulosus sensu stricto G1 in Argentina

Human cystic echinococcosis caused by the larval stage of Echinococcus granulosus sensu lato (s.l.) is a highly endemic disease in the province of Neuquén, Patagonia, Argentina. Human infections with E. granulosus sensu stricto (s.s.) G1 and Echinococcus canadensis G6 were reported in Neuquén in previous studies, whereas four genotypes were identified in livestock: G1, G3, G6, and G7. The aim of this study was to identify the genotypes of E. granulosus s.l. isolates from humans of Neuquén province, Patagonia, Argentina, through the 2005-2014 period. Twenty six hydatid cysts were obtained from 21 patients. The most frequent locations were the liver and lungs. Single cysts were observed in 81.0% of patients, and combined infection of liver and lungs was detected in 9.5% of cases. Partial sequencing of mitochondrial cytochrome c oxidase subunit 1 (cox1) and NADH dehydrogenase subunit 1 (nad1) genes identified the presence of E. granulosus s.s. G1 (n = 11; 42.3%) including three different partial sequences; E. canadensis G6 (n = 14; 53.8%) and E. canadensis G7 (n = 1; 3.9%). Coinfection with G1 and G7 genotypes was detected in one patient who harbored three liver cysts. Most of the liver cysts corresponded to G1 and G6 genotypes. This study presents the first report in the Americas of a human infection with E. canadensis G7 and the second worldwide report of a coinfection with two different species and genotypes of E. granulosus s.l in humans. The molecular diversity of this parasite should be considered to redesign or improve the control program strategies in endemic regions.

Brief original scientific report: a new surgical approach for the treatment of left pulmonary and hepatic hydatid disease

BACKGROUND

The combination of pulmonary and hepatic hydatid cysts is frequently encountered, and poses a challenge in terms of surgical accessibility. The surgical treatment of the two locations by the same incision (thoracotomy with phrenotomy) has been proposed, but always from the right side. However, applying this technique to the left side seems to be more difficult and unusual. We herein describe a new left-sided technique that was used to treat two patients with pulmonary and hepatic hydatid cysts.

METHODS

The first patient was 14-year-old; he had bilateral pulmonary hydatid cysts and one type I cyst of the left lobe of the liver. The second patient was a 10-year-old female who had a hydatid cyst of the upper left lobe with one type III cyst of hepatic segments 2 and 3.

RESULTS

Both patients were operated on via a left lateral thoracotomy through the sixth intercostal space. They underwent cystectomy for the left pulmonary hydatid cysts, followed by padding, and then the hepatic cyst was treated by Lagrot's method via a radial phrenotomy. The postoperative course was uneventful in both cases, with postoperative hospital stays of 3 and 5 days, respectively.

CONCLUSION

This combined treatment of pulmonary and hepatic hydatid cysts by the left-sided thoracic approach is feasible and provides a good outcome. It should be indicated under the same conditions of accessibility and feasibility applied for the right thoracic side.

Surgical management for hydatid disease

Hydatid disease is caused by the parasite Echinococcus granulosus. The liver and the lungs are common sites. When a cystic lesion is seen on CT scan, diagnosis is made based on the patient having lived in an endemic area. Serologic tests are used for differential diagnosis. Medical treatment is centered on albendazole. Surgery is recommended either by open or endoscopic technique depending on the characteristics of the cysts and the patient. Complications of surgery are rare except for prolonged air leaks. Mortality occurs when the cyst is located in the central nervous system or occludes major vessels.

The pattern of hydatid disease-a retrospective study from himachal pradesh, India

Hydatid disease is a common but little studied disease in Himachal Pradesh, India. This is a retrospective study from the Lady Willingdon Hospital, Manali. 115 patients presenting from April 1996 to March 2007 were included. Outcome measures were mortality and morbidity. 70 patients were female and 46 were male. (One female patient was operated on twice). 78% (n = 90) of the occurrences were hepatic. There were other varied sites. There were fourteen pulmonary hydatids. All patients underwent surgical cystectomy. An "AIR Technique" (Aspiration, Injection, Reaspiration) is described for scolicidal deactivation after March 2003 utilized in thirty two patients. There was no mortality. There were five documented recurrences in our series all of which occurred in cystectomy done without the AIR (Aspiration, Injection, Reaspiration) technique. Hydatid disease is a common disease in Himachal Pradesh warranting a high index of suspicion leading to an early diagnosis. A simple technique called the "AIR TECHNIQUE" (Aspiration, Injection, Reaspiration) is described.

Hepatopulmonary hydatidosis in a ten-year-old girl: a case report

Introduction

Hydatid disease is a parasitic infection caused by the tapeworm Echinococcus granulosus and is characterised by cystic lesions in the liver and lungs. Concomitant pulmonary and hepatic localization of hydatid cysts in childhood is unusual and represents a distinct clinical entity called hepatopulmonary hydatidosis.

Case presentation

A ten-year-old Caucasian girl, a permanent resident of rural Greece, was admitted to hospital reporting a nonspecific symptomatology compatible with a diagnosis of viral infection. Chest radiography revealed a large homogenous circular opacity in the right lung field. On the basis of imaging studies, a diagnosis of hydatidosis was made with synchronous hepatic and pulmonary involvement, successfully managed through a single-stage transthoracic surgical approach.

Conclusion

This case report highlights the necessity of realizing that hydatid disease continues to be a public health problem, which often remains asymptomatic for years. Therefore, the presence of any homogeneous cystic spherical opacity on routine chest radiography should raise the suspicion of hydatid disease, mainly in endemic areas such as Greece. General practitioners and physicians involved in pediatric care need to be familiar with the diagnosis and management of the variable clinical manifestations of hydatid disease. Taking into consideration that hepatopulmonary hydatidosis represents a special entity that requires a different therapeutic approach may positively affect its economic and social-related burden.

Cystic echinococcosis in children - the seventeen-year experience of two large medical centers in Serbia

Cystic echinococcosis (CE) is a public health problem in countries having such endemic areas. Epidemiological studies of CE, especially pediatric, are rare. The aim of this study was to evaluate epidemiological and clinical characteristics of CE in children in Serbia. Data were obtained retrospectively from the case records of patients under the age of 18 years admitted for surgical treatment of CE at two large pediatric medical institutions in the period 1990-2006. Patients' age, number of cysts and their anatomic location were evaluated in relation to differences by patients' gender and socio-geographic status (urban or rural origin). The study included 149 children with 272 hydatid cysts. The mean age of patients was 10.1+/-3.8 years. There were no significant differences in the number of patients in relation to gender and urban:rural origin. There were no significant differences in patients' age at the time of surgery or the number of cysts per patient when patients' gender or socio-geographic status was evaluated. The anatomic location of cysts was as follows: liver (N=165; 60.7%), lungs (N=82; 30.1%), and other locations (N=25; 9.2%). Multiple cysts, and combined liver/lung involvement were identified in 34.2% (N=51), and 6.0% (N=9) of patients, respectively. Hepatic cysts were significantly more common in girls than in boys. There were no significant differences in anatomic location of cysts between socio-geographic groups. The large number of infected children during a long period of investigation indicates an active transmission of disease and a lack of program for control and prevention of CE in Serbia.

Liver hydatid cyst with transdiaphragmatic rupture and lung hydatid cyst ruptured into bronchi and pleural space

The aim of this case study is to present effectiveness of percutaneous drainage as a treatment option of ruptured lung and liver hydatid cysts. A 65-year-old male patient was admitted with complicated liver and lung hydatid cysts. A liver hydatid cyst had ruptured transdiaphragmatically, and a lung hydatid cyst had ruptured both into bronchi and pleural space. The patient could not undergo surgery because of decreased respiratory function. Both cysts were drained percutaneously using oral albendazole. Povidone-iodine was used to treat the liver cyst after closure of the diaphragmatic rupture. The drainage was considered successful, and the patient had no recurrence of signs and symptoms. Clinical, laboratory, and radiologic recovery was observed during 2.5 months of catheterization. The patient was asymptomatic after catheter drainage. No recurrence was detected during 86 months of follow-up. For inoperable patients with ruptured liver and lung hydatid cysts, percutaneous drainage with oral albendazole is an alternative treatment option to surgery. The percutaneous approach can be life-saving in such cases.

[Multiple extrapulmonary thoracic hydatidosis]

INTRODUCTION

Extrapulmonary intrathoracic hydatid cysts are unusual but they may be multiple, particularly during a secondary dissemination. With the aim to clarify the origins of this dissemination, we report our experience in the treatment of multiple thoracic extrapulmonary hydatidosis (MTEH).

MATERIAL AND METHODS

Between January 1995 and December 2004, 41 patients were operated on for MTEH in our department. Chest roentgenogram and computed tomography were the main means of diagnosis. The treatment consisted of total surgical removal of the intact cysts. The approach was a postero-lateral thoracotomy (right in 29 cases, left in 8 cases, bilateral in 3 cases) and a median sternotomy in one case. All patients received complementary medical treatment with Albendazol.

RESULTS

The MTEH was secondary to haematogenous dissemination in 6 patients (15%), to a hydatid cyst of the lung in 7 patients (17%) and to a hydatid cyst of the liver in 28 patients (68%). 75% of these patients had had a previous surgical intervention for hepatic cyst and 88% of them had diaphragm involvement. There were no deaths among our patients but the recurrence rate was 12%.

CONCLUSION

Secondary intrathoracic extrapulmonary hydatidosis is generally seen among patients operated on for hydatid cyst of the liver. Necessary precautions must be taken at the time of surgery to avoid any intrathoracic dissemination.

Severe mitral regurgitation and hepatopulmonary hydatid cysts: what should be treated first?

Hydatid cyst can simultaneously affect the liver and lung. Some patients might have additional comorbidities that can make management more challenging. Here, we present a 10-year-old boy with hepatopulmonary hydatid cysts and severe mitral regurgitation, who was successfully managed with a staged surgical approach treating the lung first, followed by the liver and finally, the heart.

One-stage procedure for lung and liver hydatid cysts

Concomitant pulmonary and liver hydatid cysts occur in 4% 25% of patients with echinococcosis. To evaluate the safety of a single-stage operation, experience with this procedure between 1992 and 2005 was reviewed. Of 152 patients who underwent surgery for pulmonary hydatid cyst, 30 had an additional hepatic cyst that was located on the upper dome of the liver in all cases. Pulmonary cysts were excised first via a posterolateral thoracotomy. After phrenotomy, the hepatic hydatid cyst was evacuated without capitonnage, and a Folly catheter was left in the cavity. Postoperative complications in the 30 patients with cysts in both locations included empyema in 2, bronchopleural fistula in 1, excessive biliary discharge in 3 and hemorrhage in 1. Hepatic hydatid cysts recurred in 2 patients. There was no hospital death. A single-stage posterolateral thoracotomy for extraction of pulmonary and liver hydatid cyst is an effective and safe surgical technique with few complications.

Spontaneous rupture of a giant diaphragmatic hydatid cyst into the intrapleural space

OBJECTIVE

We report a case of giant diaphragmatic hydatid cyst which ruptured spontaneously into the intrapleural space in a patient with coexistent giant hepatic hydatid cyst.

CLINICAL PRESENTATION AND INTERVENTION

A 62-year-old female was admitted for dyspnea, nausea, vomiting, and right thoracic pain. Clinical findings, laboratory and radiological examinations including multislice computed tomography scan were consistent with the diagnosis of a giant diaphragmatic hydatid cyst which ruptured into the intrapleural space. Surgical intervention was performed through thoracotomy and phrenotomy in a one-stage operation for both cysts.

CONCLUSION

This case shows that hydatid cysts of the diaphragm can rupture into the intrapleural space spontaneously. One-stage operation through thoracotomy may be successful for the surgical intervention for diaphragmatic hydatid cysts with coexistent hepatic cyst.

One-stage transthoracic operation for the treatment of right lung and liver hydatid cysts

In this study we reviewed our experience of hydatid disease of the lung and the liver and discussed the safety and the follow-up results of the one-stage operation. Between 1990 and 2004, 142 patients with pulmonary hydatid disease underwent operation in our clinic. Of these, 27 (19%) patients had cysts located on the dome of the liver, treated with phrenotomy through a right thoracotomy. Hydatid cysts located in the lungs were managed by means of cystotomy. For liver cysts, cystotomy and the inversion of the cavity with sutures was the surgical method of choice, and a drain was left in place. The pulmonary cysts of 12 (8.4%) patients were bilateral and 5 (3.5%) patients had prior surgical treatment of hepatic (n = 1) or pulmonary (n = 4) hydatid cysts. The liver cysts were approached transdiaphragmatically after the lung cysts were excised in 27 (19%) patients. In patients with pulmonary cysts, cystotomy, with or without capitonnage was performed on 123 (86.6%) patients, and wedge resection was performed on 11 (7.7%), segmentectomy was performed on 6 patients (4.2%), and lobectomy was performed on 2 (1.4%) patients. There was no mortality, and only a small number of complications were encountered: empyema in 3, excessive biliary drainage in 2, and bronchopleural fistula in only 1. We suggest that the extraction of pulmonary and hepatic cysts simultaneously through the transthoracic route is a useful and safe surgical technique. This technique also prevents the need for a second operation.

Methods of surgical therapy in pulmonary hydatid disease: is capitonnage advantageous?

BACKGROUND

Hydatid disease of the lungs is still a serious health problem for some Mediterranean countries. The best surgical therapy for the treatment of this disease is still unclear. In this clinical retrospective study, we aimed to investigate whether capitonnage is an effective therapy method for a pulmonary hydatid cyst or not.

METHODS

Between 1990 and 2004, 89 patients (49 male and 40 female) each with a pulmonary hydatid cyst were treated surgically. The patients were divided into two groups based on whether capitonnage was carried out (group 1, n = 44) or not (group 2, n = 45). Cystotomy and the closure of the bronchial openings were carried out in both groups. The results were assessed in two groups during a 1 year follow-up period. The groups were comparable with regards to their clinical, operative and demographic characteristics.

RESULTS

There was no mortality, and no significant difference in hospitalisation time between the two groups. It was 8.2 +/- 3.2 days for group 1 and 8 +/- 3.1 days for group 2 (P = 0.89). The most serious complications were restricted bronchopleural fistula (only one patient in group 2), empyema (only one patient in group 1 and two patients in group 2), and prolonged air leak (five patients in group 1 and six patients in group 2). These results were not valuable statistically (P = 1.00, P = 1.00 and P = 0.78, respectively).

CONCLUSIONS

We conclude that it is not an advantage to carry out capitonnage when treating pulmonary hydatid cysts.

Persistent Pleural Effusion after Open Heart Surgery: Giant Hydatid Cyst of the Liver and its Demonstrative Images. A Case Report

BACKGROUND

Approximately in 50% of the patients who have undergone coronary artery bypass surgery (CABG), pleural fluid collection occurs at the early postoperative period and resolves spontaneously.

CASE REPORT

CABG was performed on a 54-year-old male. In the early postoperative period, the chest roentgenogram revealed right pleural collection. The preoperative and the postoperative hepatic function tests were nor-mal. MR scanning revealed a giant hydatid cyst at the apex of the liver. The cyst was excised through thoracotomy transphrenically and primary capitonage was applied.

CONCLUSIONS

In the persistent right pleural effusion that occurs after open heart surgery hydatid cyst of the liver should be remembered, especially in the endemic regions.

Surgical approach of pulmonary hydatidosis in childhood

To review the results of different surgical treatment in hydatid disease of the lung in paediatric patients. A total of 102 children with pulmonary hydatid cysts were treated at the our clinic in the period from 1990 to 2001. There were 59 boys and 43 girls and their age ranged from 4 to 16 years (mean 10.2). Chest radiography, computed tomography and abdominal ultrasonography were the most commonly used diagnostic techniques. The cysts were located in the right lung in 68 patients (66.6%), in the left lung in 30 patients (29.4%), in both lungs in four patients (3.9%). Concomitant liver cyst hydatid was also detected in 12 patients that were located at right lung, and two patients with bilateral lung involvement. All cases were managed surgically. Of 14 cases with concomitant liver and intrathoracic hydatid cysts, right thoracophrenotomy was performed in 12, median sternotomy in one, and phrenotomy in other. Partial cystectomy and capitonnage were the most commonly used surgical methods. Post-operative complication was seen in 10 (9.8%) patients. Infection at the incision site occurred in four patients and air leakage in three. Complications of capitonnage were seen in three patients. One patient (1%) died at fourth post-operative day due to sepsis. Parenchyma protective operations should be performed especially in children living in endemic areas because of the possibility of recurrence of the disease in the future. Single stage operations in suitable cases decrease the cost of treatment and make surgical therapy suitable in both children and young adults, by reducing the hospital in-patient time and morbidity.

Bronchoscopic Diagnosis of Ruptured Pulmonary Hydatid Cyst Presenting As Nonresolving Pneumonia: Report of Two Patients

The diagnosis and management of pulmonary hydatid disease represents an important clinical problem in areas of the world endemic to echinococcal infection. We report two patients, ages 14 and 34, respectively, who were admitted to our clinic for investigation of nonresolving pneumonia. Neither had responded to antibiotics prior to admission. Chest x-rays demonstrated lobar collapse and consolidation in both patients. Fiberoptic bronchoscopy revealed laminated membrane of hydatid cyst occluding the bronchus of apicoposterior and anterior segmental bronchi of the left upper lobe in the first patient and the anterior segment of the right upper lobe in the second patient. The diagnoses were confirmed at the time of surgery.