A diagnostic approach for differentiating abdominal tuberculosis from ovarian malignancy: a case series and literature review

Atypical tuberculous peritonitis presenting as a peritoneal pseudocyst in an immunocompetent adult: insights from a case and literature review

BACKGROUND

Tuberculous peritonitis often presents with nonspecific symptoms that can lead to diagnostic challenges, particularly when manifesting as peritoneal pseudocysts. This study highlights the clinical complexity and diagnostic approach of tuberculous peritonitis presented as a pseudocyst in an immunocompetent adult, an atypical scenario that is rarely documented.

CASE PRESENTATION

We report a detailed case of a 41-year-old man presenting with abdominal distension, pain, and significant weight loss over four months. Abdominal CT showed a peritoneal pseudocyst, initially misdiagnosed due to its resemblance to more common abdominal pathologies. The diagnosis of tuberculous peritonitis was confirmed through histopathological analysis. Additionally, a systematic literature review was conducted to identify and analyse similar cases, focusing on clinical presentations, diagnostic methods, and patient outcomes. Our patient exhibited classic symptoms of abdominal TB but was unique due to the absence of prior ventriculoperitoneal shunting, a common factor in similar cases. Our literature review found that such presentations typically result in diagnostic delays averaging five months, complicating patient management and outcomes. This review also underscores the importance of considering tuberculosis in the differential diagnosis of peritoneal pseudocysts, particularly in TB-endemic regions.

CONCLUSION

This case and review emphasize the need for high clinical suspicion and prompt investigation of tuberculosis in patients presenting with atypical abdominal symptoms and pseudocysts. Improved diagnostic strategies, including early use of imaging and pathological evaluations, are essential for timely diagnosis and management, thereby improving patient outcomes in suspected cases of extrapulmonary tuberculosis.

Concurrent peritoneal and pleural tuberculosis in an adult: A case report and literature review

Background

The simultaneous involvement of the pleura and peritoneum with tuberculosis in the absence of pulmonary foci is an uncommon condition that may lead physicians to misdiagnose.

Case Presentation

Herein, we present a Persian male adult who manifested with epigastric pain, weakness, and a history of pleuritic chest pain two months prior to admission. The findings of the physical examination included vital signs within the normal range, unilateral fine crackle in the lung, abdominal distension with positive shifting dullness, and fluid wave test. Analysis of the ascitic fluid revealed a Serum-ascites albumin gradient (SAAG) of less than 1.1g/dl, indicating a non-portal condition. The results of the acid-fast bacilli (AFB) staining as well as the TB polymerase chain reaction (PCR) test were negative. However, the adenosine deaminase (ADA) level was 44 IU/L. A chest CT scan revealed mediastinal lymph node enlargement and pleural thickening with loculated pleural effusion. Three acid-fast bacilli smear of morning sputum were sent, and all three were negative. An abdominopelvic CT scan showed multiple periaortic and mesenteric lymph nodes of varying sizes with mesenteric haziness and accumulation of effusion in the peritoneal cavity. Eventually, peritoneal biopsy, the gold standard, was performed, which revealed multiple granulomatous lesions and areas of caseous necrosis surrounded by Langerhans giant cells and epithelioid cells.

Conclusion

It is worth noting that in cases of ascites and pleural thickening, especially in patients with poor socioeconomic status, simultaneous pleural and peritoneal TB should be considered, especially in third-world countries.

Pretreatment CT differential diagnosis of tuberculous peritonitis from peritoneal carcinomatosis of advanced epithelial ovarian cancer

Delayed diagnosis of female genital tuberculosis (FGTB) can lead to inappropriate treatment and unnecessary surgical procedures rather than standard anti-TB medication. We tried to evaluate the use of computed tomography (CT) imaging to differentiate TB peritonitis from peritoneal carcinomatosis of advanced epithelial ovarian cancer (AEOC). We investigated women who underwent CT to distinguish between TB peritonitis and peritoneal carcinomatosis of AEOC. We evaluated various CT imaging features to identify differences between the two diseases. In addition, we performed univariate and multivariate logistic regression analyses to identify the independent imaging parameters associated with TB peritonitis and evaluated the diagnostic performance of the combined imaging parameters. We also performed the histopathological analysis of the available salpinx specimens of TB peritonitis. We included 25 women with TB peritonitis and 34 women with peritoneal carcinomatosis of AEOC. A multivariate analysis of the discriminant CT imaging features between the two diseases revealed that changes in fallopian tubes and peritoneal micronodules were independent parameters associated with TB peritonitis (p ≤ 0.012). Combining the two imaging parameters showed an area under the receiver operating characteristic curve of 0.855, a sensitivity of 88.0%, and a specificity of 67.7% for differentiating TB peritonitis from peritoneal carcinomatosis. Furthermore, changes in fallopian tubes were correlated with histopathological abnormalities in salpinx specimens. Pretreatment CT evaluation with useful imaging features could help differentiate TB peritonitis from peritoneal carcinomatosis of AEOC.

Asymptomatic peritoneal tuberculosis in a patient with a non-remitting fever and isolated pulmonary symptoms: a case report and literature review

Tuberculosis (TB) remains one of the leading causes of death globally. Although abdominal or peritoneal TB is a recognised site for extrapulmonary TB to manifest, the diagnosis is often delayed due to the non-specific nature of the presenting clinical features. We present the diagnostically challenging case of a 32-year-old patient with recurrent episodes of fever and a non-productive cough that was initially treated as community-acquired pneumonia with oral antibiotics. A computed tomography scan of the thorax was unrevealing, aside from a large volume of ascites within the partially imaged upper abdomen. The patient did not report any abdominal symptoms and the abdominal examination was unremarkable. Subsequently, a transvaginal ultrasound, a contrast-enhanced computed tomography scan of the abdomen and pelvis, and magnetic resonance imaging of the abdomen and pelvis confirmed a large volume of ascites in the absence of any definite aetiology. A peritoneal biopsy was required before the diagnosis of peritoneal TB was eventually confirmed. This case highlights the importance of considering peritoneal TB in patients presenting with treatment-resistant chest symptoms and persistent pyrexia of undetermined aetiology, even in the absence of abdominal signs and symptoms.

Abdominal tuberculosis in a tertiary care centre in Saudi Arabia

OBJECTIVES

Abdominal tuberculosis (ATB) is the second most common type of extra-pulmonary tuberculosis. Though it does not usually pose a significant risk of infectivity, ATB can go unidentified and progress to disseminated infection. The aim of this study is to highlight the incidence and outcome of this infection in a tertiary care centre in the Kingdom of Saudi Arabia (KSA).

METHODS

In this retrospective study, we included all ATB patients admitted to our centre between January 1 ^st, 2010 and December 31, 2018. A total of 42 patients with a median age of 49 (range 18-83 years, 78.6% males) were identified.

RESULTS

The most common presentation was abdominal pain, weight loss, and abdominal distension. All the patients were HIV negative; however, 50% had a comorbid condition, mainly diabetes mellitus, chronic renal failure, and liver cirrhosis. Tuberculous peritonitis was the predominant type of ATB. Suspicious and potentially malignant abdominal masses appeared on the abdominal CT scans of six patients. This suggest that TB should be excluded in patients from endemic area presenting with abdominal masses. All patients received standard anti-tuberculous medication for an average duration of 7.4 months. The outcome was excellent with 88%% achieving complete response. Adjunctive corticosteroids were not used, and none of the patients had a surgical complication.

CONCLUSION

The diagnosis of ATB is challenging. It can mimic inflammatory bowel disease in young populations and malignancy in middle-aged and elderly population. For this reason, a high index of suspicion with prompt treatment is required to improve the prognosis and prevent complications.