Keywords
spleen, hydatid cyst, echinococcosis, situs inversus, splenectomy, case report
This article is included in the Pathogens gateway.
The splenic localization of hydatid cysts is extremely rare. A 50-year-old obese female who consults with a painful and febrile syndrome of the right hypochondrium. Abdominal ultrasound and a CT scan computed tomography revealed a complete situs inversus, a mass of the right hypochondrium measuring 152 mm with membrane detachment, and infiltration of the surrounding fat, evoking a type II complicated splenic hydatic cyst. The patient was operated on in an emergency via midline laparotomy. Exploration revealed situs inversus, an angiant cyst of the spleen. Exposition of the splenic pedicle is difficult. The samples were then infected. Total splenectomy was performed. The postoperative period was unproblematic, and the patient was discharged with antibiotic and antiparasitic treatment and habitual vaccination.
spleen, hydatid cyst, echinococcosis, situs inversus, splenectomy, case report
The revised version of the article addresses several important aspects raised during the review process.
Firstly, the manuscript has undergone a thorough revision to correct the typos and grammatical errors identified in the previous version, ensuring a higher standard of clarity and professionalism throughout.
In response to the comment about the role of medical treatment in preoperative preparation and postoperative regimens, the updated version includes a more detailed discussion on the importance of medical management. This section now highlights the specific interventions that contributed to the patient’s recovery and provides a clearer rationale for the medical approaches used. Additionally, the revised article incorporates a more comprehensive analysis of the significance of the case findings in relation to broader disease processes, diagnosis, and treatment. The importance of the case is now framed in the context of future understanding, specifically addressing how the findings can inform future research and clinical practice. To improve the utility of the case for other practitioners, more practical details have been added to ensure that the report is not only informative but also useful for clinical application.
Lastly, the structure of the article has been aligned with the accepted standards for writing case reports, ensuring that it meets the required format and includes all essential sections for a complete and scientifically rigorous presentation.
See the authors' detailed response to the review by Ali Bilal Ulas
See the authors' detailed response to the review by Silvio Buscemi
See the authors' detailed response to the review by Selmy Awad
Splenic hydatic localization is extremely rare, with a worldwide incidence rate of 0.5%-4%.1 Abdominal left hypochondrium pain, mass, and fortuitous discoveries are the most frequently discovered complications.1,2 However, right hypochondrium pain due to a splenic hydatic cyst associated with situs inversus is an exceptional finding. Here, we report the case of a 50-year-old female, who underwent surgery in our department for a complicated splenic hydatic cyst with situs inversus.
A 50-year-old female, without no medical history presented to the emergency department with right hypochondrium pain.
On physical examination, the patient was febrile at 38,4°C; anicteric, with tenderness of the right hypochondrium on abdominal examination. The hemodynamic status was stable.
Blood analysis showed a biological inflammatory syndrome. The liver test was normal.
In the face of a 50-year-old obese female who consulted for a painful and febrile syndrome of the right hypochondrium, an abdominal ultrasound was performed, which showed a complete situs inversus and a mass of the right hypochondrium with a membrane detachment, measuring 152 mm, evoking a type II splenic hydatic cyst.
Computed tomography (CT) revealed a large cystic formation in the spleen, measuring 15 cm in its largest dimension. The cyst exhibited a detached internal membrane, a characteristic sign suggestive of a type II hydatid cyst according to the Gharbi classification. Additionally, there was evidence of surrounding fat stranding and infiltration, indicative of local inflammatory changes. These findings strongly suggest a complication, specifically a hydatid cyst cracking (Figures 1, 2).
The patient underwent an emergency midline laparotomy. The exploration revealed a situs inversus, a voluminous splenic cyst occupying over 80% of the splenic volume. Exposition of the splenic pedicle is difficult. The cysto-parietal and cysto-visceral adherences, giant size of the cyst, and obesity prevented good exposure, which led to the decision to empty the cyst content after protecting the operating field with a field soaked in hypertonic serum. The samples were then infected.
Equally, the choice of the type of surgery, whether a total splenectomy or a protruding dome resection in an emergency context with complications such as cracking and surinfection, was not easy.
However, in the face of an emergency, the primary localization in the spleen, we performed a total splenectomy that allowed healing of the infested organ and avoided recurrence and surinfection of the residual cavity.
The overture of the cyst objectified the proligere membrane (Figure 3).
The post-operative period was unproblematic, and the patient was discharged with antibiotic and antiparasitic treatment and habitual vaccination.
Treatment with albendazole 400 mg twice daily was initiated from post-operative day 1, with cycles consisting of three 28-day treatments at 2-week intervals. Serum anti-Echinococcus antibody titers (hemagglutination test and ELISA) were positive in the immediate postoperative period (titers of 1/1280 and 1.9, respectively). Subsequently, the titers gradually decreased until achieving a negative serology at 2 years post-operatively. Liver function tests and complete blood counts were performed after each cycle and did not reveal any abnormalities during the treatment period. The abdominal CT scan did not reveal any recurrence of cystic echinococcosis in the thoraco-abdominal regions, particularly in the peritoneal area, with a current follow-up period of 3 years.
Hydatic cysts are a common pathology in endemic countries. The most frequent locations are the liver and lungs.2 Splenic localization is extremely rare, with a worldwide incidence rate of 0.5%-4%.1
To our knowledge, this is the first reported case of a giant splenic hydatid cyst associated with situs inversus. In our case, the cyst was also ruptured into the abdomen, which posed both a diagnostic and therapeutic challenge.
Based on the literature of some published cases of splenic primary localization, the pain, discovery of a left hypochondrium mass, and fortuitous discoveries are the most frequent discovery circumstances or during complications such as infection and splenic abscess, rupture with an anaphylactic shock, and dissemination to other organs.1,2
Ultrasound, computed tomography, and magnetic resonance imaging of the abdomen allow for diagnosis by objectifying membrane detachment and calcifications on the daughter vesicle wall.2,3 In the case of a complicated cyst, cross-sectional imaging, particularly CT scans, can establish the diagnosis in an emergency while also allowing for the assessment of the cyst’s location and its anatomical relationships.2,3
The treatment of splenic hydatic cysts is surgical. Total splenectomy has the advantage of avoiding recurrences. Protruuding dome resection has the advantage of being a conservative intervention of the organ and its functions and is slightly hemorrhagic at the cost of a considerable rate of residual cavity surinfection.4–6
The surgical approach depends on the localization of the splenic hydatic cyst(s) and its association with other cystic localizations.4,7 The laparoscopic approach is realizable in almost all cases, with good short-term and long-term results.6–8
Regarding complicated cysts, the treatment of a ruptured hydatid cyst typically relies on urgent surgical intervention,4–6 followed by medical therapy to prevent and manage peritoneal echinococcosis.9 However, Carola Buscemi et al.9 reported a case where prolonged treatment with albendazole was employed over 10 years for peritoneal, hepatic, and splenic hydatidosis, including a ruptured cyst. The albendazole protocol consisted of 400 mg administered twice daily for three cycles of 28 days each, with a 14-day break between cycles. This treatment was well-tolerated, and the hydatidosis showed favorable progression under this regimen.
Such cases highlight the potential for medical therapy as a complementary or alternative approach in selected cases, particularly when surgery poses high risks or is incomplete. However, further randomized prospective studies are needed to establish standardized protocols and optimize the management of this common yet complex condition.
Isolated splenic hydatid cysts are uncommon and present significant challenges in both diagnosis and surgical intervention. Advanced imaging techniques, particularly computed tomography (CT), play a pivotal role in accurately identifying the condition and planning the appropriate treatment strategy. In this case, preoperative imaging not only confirmed the diagnosis but also provided valuable insights into the cyst’s size, location, and relationship with adjacent structures, which were critical for minimizing intraoperative risks and guiding the surgical approach.
Written informed consent for publication of their clinical details and clinical images was obtained from the patient.
Views | Downloads | |
---|---|---|
F1000Research | - | - |
PubMed Central
Data from PMC are received and updated monthly.
|
- | - |
Is the background of the case’s history and progression described in sufficient detail?
Partly
Are enough details provided of any physical examination and diagnostic tests, treatment given and outcomes?
Yes
Is sufficient discussion included of the importance of the findings and their relevance to future understanding of disease processes, diagnosis or treatment?
Yes
Is the case presented with sufficient detail to be useful for other practitioners?
Yes
Competing Interests: No competing interests were disclosed.
Reviewer Expertise: Thoracic Surgery
Is the background of the case’s history and progression described in sufficient detail?
Yes
Are enough details provided of any physical examination and diagnostic tests, treatment given and outcomes?
Partly
Is sufficient discussion included of the importance of the findings and their relevance to future understanding of disease processes, diagnosis or treatment?
Partly
Is the case presented with sufficient detail to be useful for other practitioners?
Partly
References
1. Buscemi C, Randazzo C, Buscemi P, Caldarella R, et al.: Very Prolonged Treatment with Albendazole of a Case of Disseminated Abdominal Cystic Echinococcosis. Tropical Medicine and Infectious Disease. 2023; 8 (9). Publisher Full TextCompeting Interests: No competing interests were disclosed.
Reviewer Expertise: internal medicine, obesity, metabolic disease
Is the background of the case’s history and progression described in sufficient detail?
Yes
Are enough details provided of any physical examination and diagnostic tests, treatment given and outcomes?
Yes
Is sufficient discussion included of the importance of the findings and their relevance to future understanding of disease processes, diagnosis or treatment?
No
Is the case presented with sufficient detail to be useful for other practitioners?
Partly
Competing Interests: No competing interests were disclosed.
Reviewer Expertise: acute care ,trauma ,laparoscopy
Alongside their report, reviewers assign a status to the article:
Invited Reviewers | |||
---|---|---|---|
1 | 2 | 3 | |
Version 3 (revision) 02 Jun 25 |
read | ||
Version 2 (revision) 10 Jan 25 |
read | ||
Version 1 04 Dec 24 |
read | read |
Provide sufficient details of any financial or non-financial competing interests to enable users to assess whether your comments might lead a reasonable person to question your impartiality. Consider the following examples, but note that this is not an exhaustive list:
Sign up for content alerts and receive a weekly or monthly email with all newly published articles
Already registered? Sign in
The email address should be the one you originally registered with F1000.
You registered with F1000 via Google, so we cannot reset your password.
To sign in, please click here.
If you still need help with your Google account password, please click here.
You registered with F1000 via Facebook, so we cannot reset your password.
To sign in, please click here.
If you still need help with your Facebook account password, please click here.
If your email address is registered with us, we will email you instructions to reset your password.
If you think you should have received this email but it has not arrived, please check your spam filters and/or contact for further assistance.
Comments on this article Comments (0)