Hamartoma of the urinary bladder: case report and review of the literature

Bladder hamartoma is a rare benign entity with only eight cases reported in the literature thus far, and whose general imaging features have not, to our knowledge, been previously discussed. The purpose of this report is to review the literature and to discuss the imaging findings in one case of bladder hamartoma where US features were those of an inhomogeneous solid mass with an unechogenic center, which was in accordance with the CT findings of a soft tissue mass with central inhomogeneous enhancement due to central necrosis. Received: 19 September 1997; Revision received: 24 December 1997; Accepted: 5 January 1998     

Hydatid disease of the urinary bladder: a case report

All organs in the human body may be affected by hydatid disease. Urinary tract involvement in hydatid disease is not common, corresponding to only 2-4% of cases. The kidneys are the most commonly affected organs in the urinary tract. We report a case of hydatid cyst of the urinary bladder.     

Computed tomography findings in septic pulmonary embolism: A case report and literature review

This case report describes the findings of septic pulmonary embolism (SPE) in a young adult male with a history of intravenous drug use who initially presented with signs and symptoms of acute sepsis. The patient underwent evaluation by computed tomography (CT) imaging as well as blood cultures and echocardiography, which confirmed the diagnosis of SPE secondary to Staphylococcus aureus positive bacterial endocarditis. In this case report, we discuss the presentation and characteristic CT imaging findings of SPE as well as highlight the value of this imaging modality in the timely diagnosis and management of this urgent condition.     

CT diagnosis of primary mediastinal hydatid cyst rupture into the aorta: A case report

Primary hydatid cyst of the mediastinum is rare. We report a patient with a primary mediastinal hydatid cyst which ruptured into the aorta, resulting in bilateral popliteal embolism. The contrast-enhanced computed tomographic features represent a pathognomonic sign of a communicating rupture of an echinococcal cyst into the aorta. Comparison is made with ultrasonography and aortography.     

Basal ganglia calcification: a Fahr's disease case report

Idiopathic basal ganglia calcification (IBGC), known as Fahr''s disease, is a rare neurological disorder characterized by metabolic, biochemical, neuroradiological and neuropsychiatric alterations caused by symmetrical and bilateral intracranial calcifications. The disease has, in most cases, an autosomal dominant pattern of inheritance and genetic heterogeneity. Overlap of neuropsychiatric symptoms is common with movement disorders accounted for 55% of the manifestation. Here we present the case of a 58-year-old woman, presenting to the emergency department because of an accidental fall. Her past medical history was unremarkable and she denied any neurological symptoms a part from insomnia and anxiety. Patient was sent to the emergency department to perform a Brain Computed Tomography (CT) exam that showed bilateral symmetrical calcifications in cerebellar white matter, the corpus striatum, the posterior thalami, and the centrum semiovale of both cerebral hemispheres. Beeing a case of IBGC without relevant symptoms, diagnosis was mainly obtained thanks to the characteristics features of CT examination.     

膀胱平滑肌瘤的超声表现1例

患者女性,40岁。体检发现膀胱肿物2年,血尿20天入院。2年前检查子宫节育环位置时,当地医院B超发现膀胱内占位性病变(具体大小不详),后行膀胱镜检查,提示膀胱息肉,因无伴随症状,未作特殊处理。最近自感尿频尿急,再次到当地医院做膀胱镜检查,病理结果膀胱移行上皮乳头状增生。检查后自觉排尿困难,出现血尿,住入我院检查治疗。入院体格检查,除膀胱区压之有不适感外,其他未见明显异常体征。超声检查:膀胱中度充盈,边界回声连续规整,膀胱内后壁偏右侧探及6.8cm×7.6cm同心圆形低回声(图1,2),其部分与前壁相连,前壁轮廓线模糊不清,可见压迹。低回…     

Mediastinal and pericardial hydatidosis: A case report with review of the literature

Hydatidosis is an echinococcosis caused by the development of Echinococcus granulosus larvae in humans. The lung is the second most frequent site after the liver. The primary mediastinal and pericardial localisations are extremely rare.Ultrasound and CT scans play an important role in the diagnosis of this disease.We report the case of an 11-year-old female patient from a rural environment with a history of dogs contact, whose symptomatology consisted of chest pain, dyspnoea, all evolving in a febrile context. The imagery showed the existence of multiple mediastinal and pericardial collections. This patient was rapidly managed with albendazole (ABZ) and scanography revealed an excellent therapeutic response.Primary mediastinal and pericardial hydatidosis is a very uncommon disease. It can be unfortunately revealed at the stage of vital prognosis complications. Ultrasound and computerized tomography (CT) are helpful for localizing and defining the morphologic features of hydatid cysts. It should be kept in mind, especially in patients from endemic areas.     

Alveolar soft part sarcoma of the orbit: A case report

Alveolar soft part sarcoma is a rare soft tissue neoplasm that accounts for approximately 1% of all sarcomas and is usually identified in the extremities in adults. The occurrence of alveolar soft part sarcoma in the orbit is extremely rare, estimated at approximately 5% – 15% among all cases of alveolar soft part sarcoma . Here, we present a case of 29-year-old woman with orbital alveolar soft part sarcoma. We describe the magnetic resonance and F-18 2-fluoro-2-deoxy-D-glucose-position emission tomography/computed tomography findings of this case. This young woman had a spindle-shaped mass. A higher signal compared to the extraocular muscle on T1-weighted images, numerous flow voids on T2-weighted images, and intense enhancement could be key findings of this disease.     

Pseudocoarctation of the aorta associated with the anomalous origin of the left vertebral artery: a case report.

Pseudocoarctation of the aorta is a rare congenital anomaly of the aortic arch, and it has been described as an elongation of the aortic arch with "kinking" at the level of the ligamentum arteriosum without a pressure gradient across the lesion. The treatment for this condition is controversial. We report here on an unusual case of pseudocoarctation of the aorta associated with the anomalous origin of the left vertebral artery and we include a review of the medical literature.     

Fungal ball in concha bullosa as incidentaloma: A case report and the review of the literature

Concha bullosa is an anatomic variant consisting in an enlargement and pneumatization of the middle nasal turbinate. A fungal ball (FB) localized in this structure is an extremely rare disease. This article describes the unusual case of a young patient with an asymptomatic fungal mass in the concha bullosa, incidentally discovered at computed tomography (CT) scan of the head, which was performed after trauma.     

Renal vein leiomyosarcoma: A case report and literature review

A case of leiomyosarcoma of the renal vein occurring in a 48-year-old woman is reported, and the literature is reviewed. Ultrasonography (US) revealed a rounded uniform echogenic mass in the renal hilus. Computed tomography (CT) showed a well-demarcated, uniform, soft tissue density mass. Both US and CT were useful to detect the renal mass in the present case, and may be useful for staging of renal vein leiomyosarcoma. However, these imaging procedures did not reveal diagnostic features of leiomyosarcoma.     

Reversed contrast-urine levels in urinary bladder: CT findings

Contrast-urine levels are routinely seen in contrast-enhanced computed tomography (CT) of the pelvis with contrast-opacified urine in the bottom and unopacified urine in the top. We encountered four cases in which contrast-urine levels were reversed. The reversal of the contrast-urine level was probably caused by high specific gravity of the preexisting urine in the bladder due to infectious debris or mucous threads in the urine.     

Spiral CT findings in a postoperative intrathoracic gastric herniation: a case report

A case is reported in which spiral CT was most the contributive imaging technique in the diagnosis of a postoperative intrathoracic gastric herniation. The coronal reformatted spiral CT images demonstrated very well the intrathoracic stomach located above a normally positioned left hemi-diaphragm. Compared with conventional CT, the multiplanar reconstruction capability provided by spiral CT allowed a much better delineation of the diaphragm in this case. Correspondence to: J. Bogaert     

Carcinosarcoma of the Renal Pelvis and Urinary Bladder: A Case Report

Carcinosarcomas are rare biphasic malignant neoplasms with an epithelial and a spindle cell component. We present a 62-year-old man with a history of noticeably abdominal distension, proved by surgery to be caused by carcinosarcoma of the renal pelvis and urinary bladder, occupying the entire left abdominal flank. We also illustrate the appearance of this rare entity on sonography and computed tomography.     

Acute aortic dissection in a young man with bilateral Covid-19 pneumonia: A suggestive case report at Computed Tomography Angiography

Acute Aortic Dissection (AAD) is one of the most common lifethreatening diseases that affects the aortic vessel. An its immediate and accurate diagnosis is crucial to initiate the appropriate treatment.The Covid-19 Coronavirus infectious pandemic started since December 2019 and was declared a pandemic by the World Health Organization in March 2020. It caused mainly bilateral interstitial pneumonia, up to causing a severe respiratory failure for the patients, and other complications.Now, we describe the case of a young man that was admitted to our hospital and was found positive for the Coronavirus disease 2019 (Covid-19). While we were performing Computed Tomography (CT) scan of the chest, we had suspected the concomitant presence of an aortic dissection, which was then immediately confirmed by Computed Tomography Angiography (CTA) study, that we had performed to complete the baseline CT scan.     

Thyroglossal duct cyst carcinoma: case report and review of the literature, with emphasis on CT findings

Carcinoma arising in a thyroglossal duct cyst (TDC) is rare. To the best of our knowledge, 155 cases have been reported, 12 of which were studied with CT. The diagnosis is established after surgical excision of the lesion but CT findings may raise the suspicion of malignancy. We present a case of TDC carcinoma and a review of the literature, with emphasis on CT findings. Received: 5 March 1999 Accepted: 20 October 1999     

Myxoid chondrosarcoma of the sinonasal cavity in a child: a case report.

Chondrosarcomas are malignant tumors of cartilage that rarely involve the sinonasal region, and myxoid chondrosarcoma is a rare histologic variant of chondrosarcoma that usually occurs in the soft tissue of extremities. Although several case reports and results of small series of chondrosarcomas in the sinonasal region in children are available, myxoid type chondrosarcoma is extremely rare. We recently experienced a case of low grade myxoid chondrosarcoma involving the sinonasal cavity in a 10-year-old boy, and here we report its radiologic-pathologic findings. In this case, chondroid calcification on CT and septal and marginal enhancement on MRI suggested a chondrosarcoma. Whole body PET-CT demonstrated no definite metastatic lesion and a low peak standardized uptake value primary tumor. However, no definite distinguishing imaging features were observed that distinguished low grade myxoid chondrosarcoma from conventional chondrosarcoma.     

Computed tomography—Guided removal of an osteoid osteoma: A case report

An osteoid osteoma nidus was removed under computed tomography (CT) scan guidance. This procedure may have advantages over en bloc resection for treatment of osteoid osteoma since it ensures the removal of the nidus without producing a large bony defect such as results from en bloc resection.     

膀胱异位嗜铬细胞瘤的MSCT诊断

目的 讨论膀胱异位嗜铬细胞瘤MSCT表现.方法 对8例资料完整、经手术证实膀胱异位嗜铬细胞瘤的CT图像进行回顾性分析.结果 8例肿块均为单发,分别位于膀胱三角区(2例)、顶部(2例)、前壁(1例)、后壁(3例),2例位于粘膜下,6例位于膀胱肌层.病灶平扫呈均匀低密度,无囊变,1例可见环形钙化,增强扫描动脉期明显均匀强化,动脉期与平扫病灶CT值相差＞40HU,门脉期与动脉期CT值相差为15HU左右.结论 膀胱异位嗜铬细胞瘤在MSCT有其特征性表现,术前可以明确诊断.     

CT images of a malignant-transformed ovarian mature cystic teratoma with rupture: a case report

A malignant transformation or a tumor rupture is a rare complication of ovarian mature cystic teratoma (MCT). A tumor rupture in a malignant-transformed MCT has never been reported in the literature. We present the CT images of a 39-year-old woman showing a large, predominantly cystic mass in the lower abdomen, with fat-fluid-level ascites. A contrast-enhanced solid component, with regional discontinuity within the cystic lesion, is also demonstrated. The pathologic diagnosis of the ruptured MCT unveils the malignant transformation (squamous cell carcinoma) and mesenteric carcinomatosis.