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March 2013 Issue

 




Other Radiology articles from the General Radiology section General Radiology

Malignant fat-forming solitary fibrous tumor (lipomatous hemangiopericytoma) in the neck: Imaging and histopathological findings of a case by Alice Duarte de Carvalho et al.

Published: 2013 Mar
Issue: 7(3) :: Pages: 1-7


Free full text article: Malignant fat-forming solitary fibrous tumor (lipomatous hemangiopericytoma) in the neck: Imaging and histopathological findings of a case

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Abstract: Fat-forming solitary fibrous tumor (SFT) is a rare variant of solitary fibrous tumor, a mesenchymal fibroblastic neoplasia with a particular branching hypervascular pattern. This tumor is usually classified as benign and only very few fat-forming SFTs with malignant histologic features have been reported. We report a histologically malignant fat-forming solitary fibrous tumor in a 61-year-old man, located in his neck. Ultrasonography examination was first performed showing a heterogeneous lesion, predominantly hyperechoic, with sound beam attenuation, containing two hypoechoic solid nodules. Magnetic resonance imaging and computed tomography examinations demonstrated a heterogeneous and predominantly adipose mass, containing post contrast enhancing solid nodules and thin septations. Treatment consisted of total removal of the lesion. Histologically, the tumor showed hypercellularity, numerous mitoses and cytological atypia, fulfilling the criteria for malignancy. The patient had no metastasis. This rare tumor may be confused with other fat-containing lesions on imaging examinations, mainly liposarcoma.


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Ultrasound, Computed Tomography, Magnetic Resonance Imaging, Macroscopic pathology, Table

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Other Radiology articles from the Neuroradiology section Neuroradiology

Acute Watershed Infarcts with Global Cerebral Hypoperfusion in Symptomatic CADASIL by Ajeet Gordhan et al.

Published: 2013 Mar
Issue: 7(3) :: Pages: 8-15


Free full text article: Acute Watershed Infarcts with Global Cerebral Hypoperfusion in Symptomatic CADASIL

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Abstract: Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) is the most common form of hereditary cerebral angiopathy. We present a case in which a pattern of diffusion signal change compatible with bihemispheric acute watershed infarcts occurred in a symptomatic patient demonstrating global hypoperfusion. To our knowledge, watershed infarcts in the clinical presentation of CADASIL have not been previously described.


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Magnetic Resonance Imaging, Table

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Other Radiology articles from the Thoracic Radiology section Thoracic Radiology

Tracheobronchopathia Osteochondroplastica - A rare or an overlooked entity? by Shikha Jindal et al.

Published: 2013 Mar
Issue: 7(3) :: Pages: 16-25


Free full text article: Tracheobronchopathia Osteochondroplastica - A rare or an overlooked entity?

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Abstract: Tracheobronchopathia osteochondroplastica is an idiopathic non-malignant disease of large airways featured by submucosal cartilaginous to osseous nodules overlying the cartilaginous rings, which may be focal or diffuse. Clinical presentation varies from asymptomatic to symptoms like breathlessness, recurrent chest infections, cough and hemoptysis. Due to the lack of awareness of this disease, it remains an under recognized entity. We are describing the computed tomography and bronchoscopic findings of two recently diagnosed cases at our institute. The purpose of this report is to familiarize radiologists with imaging appearance of this condition, with the goal of increasing clinical suspicion of this uncommon condition.


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Conventional Radiography, Computed Tomography, Clinical image, Microscopic pathology, Table

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Other Radiology articles from the OB/GYN section OB/GYN

Large leiomyoma in a woman with Mayer-Rokitansky-Kuster-Hauser syndrome by Kishan S Rawat et al.

Published: 2013 Mar
Issue: 7(3) :: Pages: 39-46


Free full text article: Large leiomyoma in a woman with Mayer-Rokitansky-Kuster-Hauser syndrome

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Abstract: Mayer-Rokitansky-Kuster-Hauser (MRKH) syndrome is a rare congenital anomaly characterized as aplasia or hypoplasia of uterus and vagina in women with normal development of secondary sex characteristics. It affects 1 in 4000-5000 female births. Women with this syndrome present with primary amenorrhoea. MRKH syndrome may be associated with renal, skeletal, cardiac and auditory anomalies. Women with MRKH syndrome may develop leiomyoma from a rudimentary uterus, though very rare. Initial investigation in women having MRKH syndrome with leiomyoma is ultrasonography (USG). However, CT and MRI are more accurate to evaluate the pelvic anatomy and pathologies.


Available image modalities: (click on modality to browse for other articles)
Ultrasound, Computed Tomography, Magnetic Resonance Imaging, Macroscopic pathology, Microscopic pathology, Table

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Other Radiology articles from the Genitourinary Radiology section Genitourinary Radiology

Don`t get caught out! A rare case of a calcified urachal remnant mimicking a bladder calculus by Jonathan Carl Luis Rodrigues et al.

Published: 2013 Mar
Issue: 7(3) :: Pages: 34-38


Free full text article: Don`t get caught out! A rare case of a calcified urachal remnant mimicking a bladder calculus

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Abstract: Computer tomography through the kidneys, ureters and bladder (CT KUB) is the mainstay investigation of suspected renal tract calculi. However, several pathologies other than renal tract calculi can cause apparent urinary bladder calcification. We describe the case of a 45 year old man who presented with left sided renal colic. Prone CT KUB performed on admission revealed a calcified urachal remnant mimicking a urinary bladder calculus in the dependent portion of the urinary bladder, confirmed by reviewing the multi-planar reformatted images. This is the first reported case in the literature of this phenomenon. We discuss the importance of using multi-planar reformatted images (MPR) and maximum intensity projection images (MIP), as well as careful review of previous imaging, in making the correct diagnosis. We also discuss the differential diagnoses that should be considered when presented with urinary bladder calcification.


Available image modalities: (click on modality to browse for other articles)
Computed Tomography, Table

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Other Radiology articles from the Gastrointestinal Radiology section Gastrointestinal Radiology

Unicentric Castleman`s Disease of Abdomen by Dharita Shah et al.

Published: 2013 Mar
Issue: 7(3) :: Pages: 26-33


Free full text article: Unicentric Castleman`s Disease of Abdomen

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Abstract: Castleman`s disease (CD) is a rare lymphoproliferative disease of uncertain etiology that affects lymph nodes. CD can be classified as a) unicentric vs. multicentric, based on clinical and radiological findings, b) hyaline vascular ( 80-90% ) vs. plasmacytic ( 10-20% ) vs. mixed cellularity variety based on histopathology. Unicentric disease is more common in the 3rd and 4th decade, whereas the multicentric form is more common in the 5th and 6th decade with no sex predilection. HIV seropositive individuals appear to be at an increased risk for multicentric castleman`s disease (MCD) at a younger age due to the increased incidence of HHV- 8 infection. Diagnosis is usually based on histopathology features as imaging features show considerable overlap, thus posing diagnostic difficulties. Overall prognosis is good, particularly in the unicentric variety of disease. We have presented a case of the unicentric CD in a 40 year old male patient having abdominal pain and hematuria as chief complaints.


Available image modalities: (click on modality to browse for other articles)
Magnetic Resonance Imaging, Computed Tomography, Microscopic pathology, Table

4 interactive image stacks available! ...scroll, window/level, magnify, pan, MPR and more! View them now!





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