A Giant Pulmonary Hydatid Cyst in a 13-Year-Old Child: A Case Report

: Hydatid disease has been introduced as a crucial health issue in the Eastern Mediterranean by the World Health Organization. Surgery is the standard gold treatment for hydatid disease. Here, we reported a case of a large hydatid cyst involving the lung in a 13-year-old girl complaining of shortness of breath and cough for 8 months. Early symptoms include fever, cough, and shortness of breath. After admission, computed tomography verified giant lung hydatid cysts. Complete collapse of the right lung and progressive respiratory distress of the patient were treated with thoracotomy considering the size of the hydatid cyst in the lung. It should be noted that in such patients, the preservation of lung tissue function is very significant, and also, the less part of the lung is removed after surgery, the fewer complications the patient will suffer.

Giant pulmonary hydatid cyst in children

Hydatid disease is still endemic in Tunisia. It is mostly seen in young people less than 40 years and children are affected in one third of cases. The lungs are the predominant location in children. Our study aims to define the particularities of children PHC's (pulmonary hydatic cyst) management, the characteristics of giant cyst and to study predictive factors of complications. We included retrospectively 105 children with PHC followed between 1999 and 2019. Patients were aged less than 16 years with surgically confirmed diagnosis of PHC. Two groups of cysts were defined: giant cysts which were 10 cm across or more, and no giant cysts.The sex-ratio was 1,38 with a mean age of 10.5±3 years. The symptomatology was dominated by cough (59%), thoracic pain (51%) and hemoptysis (46%). Giant cysts were observed in 24 (22.9%) patients. Dyspnea (29% vs 5% p<0.001) and thoracic pain (88% vs .41% p<0.001) were significantly more frequently reported in giant cysts. Eighty-six patients had a single cyst (83%) and 19 had multiple cysts (17%). Giant cysts accounted for 22,9% (24 cases). Thoracic ultrasonography was diagnostic in 77.4%. The thoracic CT scan was performed in 27 children with inaccessible cysts in thoracic ultrasonography or in diagnostic doubt.Patients were all treated surgically. Surgical procedures consisted of cystectomy (59%), pericystectomy (18%) and pulmonary resection when parenchyma was destroyed (23%). Parenchymal resection was more often performed in complicated cysts (27% vs 20% p>0.05) and in giant cysts (41% vs 18% p<0.05). A two-stage thoracotomy was performed in the 4 patients with bilateral cysts. Thirteen patients presented immediate post-operative complications which occurred more frequently in complicated and giant cysts. Hospital stay was longer in complicated cysts (16±9 days vs 7±3 days; p<0.001) and in giant cysts (14±9 days vs 11±8 days; p>0.05). In endemic regions, the diagnosis of PHC in children should be based on the combination of thoracic radiography and ultrasonography which are effective, not costly, safe and accessible. Complicated and giant PHC cause lung damage leading to extensive parenchymal resection. They are more associated with post-operative complications prolonging hospital stay and increasing expenses.

Point-of-care Ultrasound Diagnosis of Pulmonary Hydatid Cyst Disease Causing Shock: A Case Report

Introduction: Point-of-care ultrasound (POCUS) is accepted as an important tool for evaluating patients presenting to the emergency department (ED) with dyspnea1 and undifferentiated shock. Identifying the etiology and type of shock is time-critical since treatments vary based on this information. Clinicians typically rely on the history, exam, and diagnostics tests to identify the etiology of shock. In resource-limited settings where there is reduced access to timely laboratory and diagnostic studies. The use of POCUS enables rapid classification and directed treatment of shock. Additionally, POCUS can aid in the diagnosis of rarer tropical diseases that can be important causes of shock in resource-limited settings. Case Report: We discuss a case of a pediatric patient who presented to an ED in Cusco, Peru, with acute dyspnea and shock. Point-of-care ultrasound was used to expedite the diagnosis of a ruptured pulmonary hydatid cyst, guide proper management of septic and anaphylactic shock, and expedite definitive surgical intervention. Conclusion: In resource-limited settings where there is reduced access to timely laboratory and diagnostic studies, the use of POCUS enables rapid classification and directed treatment of shock.

Comparison of the outcome of transverse and circumferential capitonnage in surgical treatment of pulmonary hydatid cyst - a single centre study

Background and objectives: The enucleation of the pulmonary hydatid cyst is followed by individual closure of bronchial air leaks and obliteration of the residual pericystic cavity by capitonnage, either by circumferential or interrupted transverse suture. The objective of the study was to compare the surgical outcome of transverse and circumferential capitonnage in terms of postoperative recovery course, residual cavitations, air leaks, cavitatory or pleural collections and the recurrence of primary disease after enucleation of the pulmonary hydatid cyst. Methods: Patients with pulmonary hydatid cyst were included in the study and divided into two groups. Each group consisted of 30 patients. Patients of Group-1 underwent enucleation of the hydatid cyst followed by closure of bronchial air leaks with classical circumferential closure of the cavity and patients of Group-2 had enucleation of the hydatid cyst and closure of the cavity by transverse capitonnage. Results: Ten cases (33.33%) of Group-1 had hospital stay for more than 5 days compared to 4(13.33%) in Group-2 (p=0.03). Out of 30 patients who had undergone circumferential closure of the hydatid cavity, 5 (16.67%) patients had residual cavitatory fluid collection while there was none in the other group. In Group-1, 7 (23.3%) cases had reactionary intrapleural fluid collection compared to 2 (6.6%) in Group-2 (p=0.035). After 3 months of follow-up, 4 patients in circumferential capitonnage had mild haemoptysis and 1 had aspergilloma while no such complication occurred in any patient in the transverse capitonnage group. No recurrence of cyst occurred in any case in both groups. Conclusion: There was a considerable advantage of transverse capitonnage of the hydatid lung cavity after enucleation in terms of short hospital stay, minimal or no reactionary intrapleural or intra cavitatory collections and less air leaks. Ibrahim Med. Coll. J. 2021; 15(2): 13-17

Pulmonary hydatidosis presenting as pyopneumothorax in a 15 year old male

Pulmonary hydatid cyst is an exceptional cause of pyopneumothorax that should be considered in countries where hydatid disease is endemic. The documented rates of simple pneumothorax in patients with pulmonary hydatidosis ranges from 2.4-6.2%. Hydatidosis is a parasitic zoonosis of the genus Echinococcus that infects herbivores and humans in its larvae stage(hydatid) and in paediatric population, generally presents as pulmonary hydatidosis. Misdiagnosis of this condition as tubercular in origin can cause treatment and prognostic delays for the patient. We report a case of a 15 year old male presenting with complaints of breathlessness (Grade 2 MMRC) since 3 months and dry cough, low grade fever with chills since 3 months. He had previously received AKT therapy and IV antibiotics. His blood investigations were normal. His sputum for AFB, CBNAAT was negative. His initial chest xray was suggestive of right sided hydropneumothorax. CECT Thorax revealed features suggestive of hydatid cyst in right posterobasal segment lower lobe with loculated pyopneumothorax with collapsed and consolidated right lung with mediastinal lymphadenopathy. After admission, Intercostal chest drainage tube was inserted on the right side and connected to underwater seal and pleural fluid was drained. Pleural fluid investigations revealed exudative effusion by Lights criteria, ADA was 150, culture and sensitivity revealed no growth and cytology revealed features of empyema.The patient was started on IV Piperacillin+Tazobactam, IV Metronidazole and Tab Albendazole for 14 days along with AKT considering raised pleural fluid ADA levels as suggestive of tubercular pleural effusion. The patients hydatid serology (Echinococcus IgG Antibody ELISA- 0.88) came out to be positive which confirmed our diagnosis of hydatidosis. After repeat chest x ray, there was resolution noted in effusion and ICD tube was removed and the patient was discharged on oral antibiotics for 14 days and Tab Albendazole for 3 months.

Pulmonary hydatidosis genotypes isolates from human clinical surgery based on sequencing of mitochondrial genes in Fars, Iran

Background Cystic echinococcosis (CE)/hydatidosis is an important neglected parasitic zoonotic disease caused by the metacestode of Echinococcus granulosus s.l. The present study was designed to identify the pulmonary CE species/genotypes in isolated human underwent to surgery in our center in Southern Iran. Methods The study population of this study were all patients in Fars province who were admitted to Namazi Hospitals for pulmonary hydatid cyst surgery. Thoracic surgery was performed in the thoracic ward and the cyst/s was removed by open surgery via posterolateral or lateral thoracotomy. DNA was extracted from the germinal layer or the protoscoleces. PCR technique was performed using the cytochrome C oxidase subunit1 (cox1) gene, and the products were sequenced. Results A total of 32 pulmonary hydatid cyst samples were collected from 9 (28%) female and 23 (72%) male aged from 4 to 74 years old. A total of 18(56%) cyst/s were in the left lobe and 14 (44%) cysts in the right lobe. Sequence analysis of the cysts showed that 24 samples (75%) were E. granulosus s.s (G1-G3) genotype and 8 (25%) were E. canadensis (G6/G7) genotype. Conclusion E.granulosus s.s genotype was the most prevalent genotype followed by E. canadensis (G6/G7) genotype. There was no significant statistical correlation between cysts’ size, location, genotype strain, and patients’ age and gender.