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J Clin Neurosci 2020 Aug 4;78:128-134. Epub 2020 Jun 4.

Department of Neurologic Surgery, Mayo Clinic, Rochester, MN, USA; Department of Radiology, Mayo Clinic, Rochester MN, USA. Electronic address:

Spinal solitary fibrous tumor/hemangiopericytoma (SFT/HPC) is a rare mesenchymal malignancy. Radiographically, SFT/HPCs have a mutable appearance, with irregular borders, heterogeneous contrast enhancement, and variable but frequently hypointense T2 signal. We report a series of 5 neurosurgically managed spinal SFT/HPCs treated at our institution, with particular attention to 3 lesions demonstrating marked T2-hypointensity and differential diagnosis for the unusual finding of a "T2 dark" spinal lesion. Read More

Can Assoc Radiol J 2020 May 22;71(2):161-173. Epub 2020 Jan 22.

Department of Radiology, University of Chicago, Chicago, IL, USA.

Imaging studies of the hands and fingers are common, and radiologists are generally comfortable with traumatic and degenerative conditions which arise frequently in daily practice. However, a variety of common and uncommon soft-tissue tumors also occur in the hand, the appropriate diagnosis of which can be a source of confusion for both clinicians and radiologists. These lesions often have overlapping imaging characteristics; however, a structured approach can help provide a focused differential diagnosis and impact further workup and management. Read More

J Med Case Rep 2019 Jul 17;13(1):231. Epub 2019 Jul 17.

Department of Orthopedic Surgery, Nara Medical University, Nara, Japan.

Background: Synovial hemangioma of the knee is a rare benign tumor. Very rarely, the growth of bone is affected by long-term neglect of an intra-articular tumor. Our patient had not only various clinical symptoms but also dysplasia of the femoral bone. Read More

Indian Pediatr 2017 Nov;54(11):966-968

Pediatric Rheumatology Clinic; Vijaya Children's Clinics, and *Manipal Hospital and Indira Gandhi Institute of Child Health; Bengaluru, Karnataka, India. Correspondence to: Dr Pooja Prakash Mallya, H. no 46, 2nd Cross, Panduranga Nagar, Bannerghatta Road, Bengaluru - 560076, Karnataka, India.

Background: Synovial arteriovenous malformation is rare.

Case Characteristics: We present three children with recurrent monoarthritis secondary to synovial arteriovenous malformation.

Outcome: Two children underwent excision of arteriovenous malformation. Read More

PLoS One 2017 29;12(6):e0175629. Epub 2017 Jun 29.

Department of Bioengineering, University of Pittsburgh, Pittsburgh, Pittsburgh, United States of America.

Objective: The purpose of this study was to explore the efficacy of Ultra-high field [UHF] 7 Tesla [T] MRI as compared to 3T MRI in non-contrast enhanced [nCE] imaging of structural anatomy in the elbow, forearm, and hand [upper extremity].

Materials And Method: A wide range of sequences including T1 weighted [T1] volumetric interpolate breath-hold exam [VIBE], T2 weighted [T2] double-echo steady state [DESS], susceptibility weighted imaging [SWI], time-of-flight [TOF], diffusion tensor imaging [DTI], and diffusion spectrum imaging [DSI] were optimized and incorporated with a radiofrequency [RF] coil system composed of a transverse electromagnetic [TEM] transmit coil combined with an 8-channel receive-only array for 7T upper extremity [UE] imaging. In addition, Siemens optimized protocol/sequences were used on a 3T scanner and the resulting images from T1 VIBE and T2 DESS were compared to that obtained at 7T qualitatively and quantitatively [SWI was only qualitatively compared]. Read More