Patient: Male, 20-year-old Final Diagnosis: Cerebral venous sinus thrombosis • varicella zoster virus infection Symptoms: Fever • headache • skin rash Medication: — Clinical Procedure: — Specialty: Infectious Diseases • Rheumatology Objective: Unusual clinical course Background: Varicella zoster virus (VZV) infection causes 2 clinically distinct forms of the disease: varicella (chickenpox) and herpes zoster (shingles). Primary VZV infection results in the diffuse vesicular rash of varicella, or chickenpox. Endogenous reactivation of latent VZV typically results in a localized skin infection known as herpes zoster, or shingles. The infection usually manifests as a self-limited disease. However, it can be associated with various neurological complications such as encephalitis, meningitis, ventriculitis, cerebellar ataxia, ischemic or hemorrhagic, and, rarely, cerebral venous sinus thrombosis (CVST). This report presents a case of cerebral venous sinus thrombosis due to varicella zoster virus infection in a 20-year-old Nepalese man who presented to the Emergency Department with headache. Case Report: A 20-year-old Nepalese male patient presented to the Emergency Department with headache of 10 day’s duration. Five days prior to that, he had a diffuse pruritic skin rash. Examination as well as serology confirmed the presence of primary varicella infection. Computed tomography (CT) and magnetic resonance venography (MRV) demonstrated CVST. Thrombophilia workup revealed a transient elevation of antiphospholipid serology. Shortly after admission, the patient had a transient seizure. He was treated with acyclovir, levetiracetam, and anticoagulation. A comprehensive literature review of similar cases was performed to establish a link between thrombotic complications and primary VZV infection and to formulate possible mechanistic pathways. Conclusions: This report shows that primary VSV infection can be associated with vasculopathy and CVST. Physicians should recognize this serious complication, which should be diagnosed and treated without delay.

Zinner syndrome is a rare hereditary disorder of the mesonephric duct. The triad of the absence of one kidney, ipsilateral cystic dilatation of the seminal vesicle, and ejaculatory duct obstruction makes the diagnosis. Mostly, it is asymptomatic. However, genitourinary manifestations and workup for the incidental absence of one kidney often uncover the disease. Ultrasound and CT scan can identify the absence of a kidney and seminal vesicle cyst, while MRI is the gold standard for diagnostic elaboration of the pelvic anatomy. In this article, we have presented a 51-year-old male patient who presented with renal colic and hypertension. Radiological investigations for the renal colic uncovered the diagnosis of Zinner syndrome incidentally. This case highlights the incidental nature, variability in the clinical presentation, and the diagnostic challenges of this rare disorder. It also emphasizes on the radiologist for a careful evaluation of the pelvic images in patients with unilateral absence of a kidney.

Colloid cysts are the commonest masses of the third ventricle. Third ventricle neoplasms are uncommon. They include tumors arising from the choroid plexus (papillomas, carcinomas), tumors arising from other than the choroid plexus (ependymomas, meningiomas), metastases, and lymphoma. Choroid plexus tumors usually occur in the lateral ventricle in children and fourth ventricle in adults, and often present with hydrocephalus. We herein describe the extremely rare occurrence of third ventricle choroid plexus papilloma in a 35-year-old man who presented to the emergency department with a long history of intermittent headaches, occasionally associated with photophobia. CT and MR imaging revealed a lobulated ovoid lesion in the third ventricle with minimal extension into the right lateral ventricle through the foramen of Monro, causing mild ventricular dilatation. Surgical resection was performed and histopathology revealed choroid plexus papilloma.

Many geometrical angles are measured directly on bone radiographs and are difficult to recall, we wanted to explore an automatic method of measurement. Edge detection was needed to determine bone edges and use them for calculation. There is no consensus on which is the best one for use in skeletal radiographs. We decided to compare commonly used edge detection methods qualitatively and quantitatively for measuring the carrying angle of the elbow using a framework we developed in PHP: Hypertext Preprocessor. Five-Hundred patients' elbow radiographs were collected. They were run through the measurement algorithm using the following edge detection methods: Sobel, Scharr, Prewitt, Frei-Chen, Kirsch, Robinson, Difference of Gaussians (DoG), Laplacian of Gaussian (LoG), Canny, Hough. Five observers manually measured the carrying angle. Results were compared using Intraclass Correlation Coefficient (ICC), Regression Analysis and Validity calculation. The Robinson algorithm was best in the qualitative analysis. Observer ICC was 0.643 which showed a strong agreement. Quantitative analysis revealed that, developing bone caused a significant bias compared to mature bone and DoG algorithm was the best due to low bias, high validity and low processing time. Automated radiographic measurement of the carrying angle of the elbow is a feasible and reliable process.