[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-456515-105":59,"doc-detail-456515-en":130},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":123,"head_meta":125,"extra_data":127,"updated_unix":129},105,"en","primary-hydatid-cyst-of-the-parapharyngeal-space-a-rare-head-and-neck-presentation","Primary hydatid cyst of the parapharyngeal space - a rare head and neck presentation","","Hydatid disease caused by Echinococcus granulosus typically affects the liver and lungs, while primary involvement of the head and neck parapharyngeal space is extremely uncommon and difficult to diagnose. The report describes a 13-year-old girl from an endemic area with a painless, rapidly enlarging right parapharyngeal mass over 6 months. Imaging showed a well-defined cystic lesion; complete transcervical excision confirmed hydatid cyst histopathology with laminated membranes, protoscolices, and daughter cysts. Postoperative recovery was uneventful and albendazole was given for recurrence prevention.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":35,"@type":76,"position":81},"https://docshare.wps.com/document/healthcare/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/primary-hydatid-cyst-of-the-parapharyngeal-space-a-rare-head-and-neck-presentation/456515/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/primary-hydatid-cyst-of-the-parapharyngeal-space-a-rare-head-and-neck-presentation/456515.png","ImageObject",300,407,{"name":92,"@type":93},"WPS_1790064749","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-11-07","2026-09-30",true,{"@type":102,"interactionType":103,"userInteractionCount":44},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"Why is primary hydatid cyst in the parapharyngeal space diagnostically challenging?","Question",{"text":112,"@type":113},"Head and neck involvement, especially the parapharyngeal space, is extremely rare, and the clinical presentation is non-specific, contributing to diagnostic delay.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"What imaging and diagnostic findings supported the diagnosis in this case?",{"text":117,"@type":113},"Fine-needle aspiration suggested a benign cystic lesion, while contrast-enhanced CT demonstrated a well-defined cystic mass occupying the right parapharyngeal space without daughter cysts, calcifications, or a ‘water-lily’ sign.",{"name":119,"@type":110,"acceptedAnswer":120},"What treatment was performed and how was recurrence prevention addressed?",{"text":121,"@type":113},"The cyst was completely excised via a transcervical approach, and histopathology confirmed hydatid cyst. Albendazole was prescribed for two months postoperatively to prevent recurrence.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},456515,1790811407,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":34,"category_name":35,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":44,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":81,"language":139,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":140,"faqs":141,"seo_title":142,"seo_description":67,"update_tm":143,"read_time":39,"preview_page_count":4},3985747859154,"https://ap-avatar.wpscdn.com/davatar_276721f389ce27ea32af1340a28f341c","Journal of Surgical Case Reports, 2026, 1, rjaf1062  \n[https://doi.org/10.1093/jscr/rjaf1062](https://doi.org/10.1093/jscr/rjaf1062)  \nCase Report  \nCase Report  \nPrimary hydatid cyst of the parapharyngeal space: a rare head and neck presentation  \nJaveria Awan 1 , Haitham Akaash1 , Sundas Masood 2 , Rahmat Gul Omarzai 3 , *, Abdur Rehman 2  \n1 Department of ENT, Head and Neck Surgery, Rawalpindi Medical University, Tipu Road, Chamanzar Colony, Rawalpindi 46000, Punjab, Pakistan  \n2 Department of ENT, Head and Neck Surgery, Benazir Bhutto Hospital, Chah Sultan, Murree Road, Rawalpindi 23000, Punjab, Pakistan  \n3 Department of Medicine, Nangarhar University, Kabul-Jalalabad Highway, Daronta 2601, Nangarhar, Afghanistan  \n*Corresponding author. Department of Medicine, Nangarhar University, Kabul-Jalalabad Highway, Daronta 2601, Nangarhar, Afghanistan.  \nE-mail: [rahmatgulomarzai@gmail.com](rahmatgulomarzai@gmail.com)  \nAbstract  \nHydatid disease, caused by Echinococcus granulosus, most commonly affects the liver and lungs. Involvement of the head and neck region, particularly the parapharyngeal space, is extremely rare and poses a diagnostic challenge. We report the case of a 13-year-old girl from an endemic area who presented with a painless, rapidly enlarging mass in the right parapharyngeal space, developing over 6 months. Clinical examination revealed a firm, non-tender, transilluminant swelling with intraoral bulging. Computed tomography demonstrated a well-defined cystic lesion in the right parapharyngeal space. The cyst was completely excised via a transcervical approach. Histopathological examination confirmed hydatid cyst, revealing laminated membranes, protoscolices, and daughter cysts. The postoperative course was uneventful, and albendazole was prescribed for two months to prevent recurrence. This case emphasizes considering hydatid disease in the differential diagnosis of cystic neck masses in patients from endemic regions, even in unusual locations.  \nKeywords: echinococcosis; pharyngeal diseases; head and neck neoplasms; cysts/surgery; albendazole/therapeutic use  \nIntroduction  \nHydatid cyst is a parasitic zoonosis caused by the larval stage of Echinococcus granulosus , which is endemic in Asia, the Middle East, South America, and Australia [1] . Despite global control efforts, cystic echinococcosis continues to impose a significant health burden, with recent estimates suggesting more than one million affected individuals worldwide, predominantly in pastoral communities where dog–livestock transmission persists [2] . Humans serve as accidental intermediate hosts, with lesions most frequently located in the liver (75%) and lungs (15%), while only ∼10% occur in other anatomical sites.  \nPediatric cases of cystic echinococcosis are reported less frequently than adult cases, with prevalence increasing steadily with age in community-based surveys, highlighting the importance of vigilance even when children present with cystic lesions in endemic regions [3] . The head and neck region is an uncommon location, and involvement of deep compartments such as the parapharyngeal space is exceedingly rare [4] . Limited arterial dissemination to this region and the non-specific clinical profile contribute to diagnostic delays [5] .  \nCase report  \nA 13-year-old female, from a rural area in Khyber Pakhtunkhwa, presented with a 6-month history of progressively increasing swelling on the right side of the neck. The swelling was associated with intermittent, mild, non-radiating dull pain that worsened with chewing. She reported no fever, weight loss, constitutional symptoms, or known exposure to livestock or dogs.  \nOn physical examination, a 7 × 4 cm firm, tense, non-tender, non-pulsatile, and immobile swelling was identified extending from the right submandibular region to the parotid area andoverlying the mandibular angle. The lesion was transilluminant. Intraoral examination revealed a smooth bulge in the right tonsillar and sup","cbCailWam25BBiqe","https://ap.wps.com/l/cbCailWam25BBiqe","pdf",529191,"English","# Abstract\n# Introduction\n# Case report\n## Presentation and examination\n## Imaging and cytology\n# Surgical management and outcome","[{\"question\":\"Why is primary hydatid cyst in the parapharyngeal space diagnostically challenging?\",\"answer\":\"Head and neck involvement, especially the parapharyngeal space, is extremely rare, and the clinical presentation is non-specific, contributing to diagnostic delay.\"},{\"question\":\"What imaging and diagnostic findings supported the diagnosis in this case?\",\"answer\":\"Fine-needle aspiration suggested a benign cystic lesion, while contrast-enhanced CT demonstrated a well-defined cystic mass occupying the right parapharyngeal space without daughter cysts, calcifications, or a ‘water-lily’ sign.\"},{\"question\":\"What treatment was performed and how was recurrence prevention addressed?\",\"answer\":\"The cyst was completely excised via a transcervical approach, and histopathology confirmed hydatid cyst. Albendazole was prescribed for two months postoperatively to prevent recurrence.\"}]","Primary hydatid cyst of the parapharyngeal space - a rare head and neck presentation | PDF",1790746283]