Edgar Rivera Colón

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OBJECTIVES We measured HIV seroprevalence and associated risk factors among persons in New York City's house ball community. METHODS In 2004 we conducted a venue-based risk-behavior survey and HIV testing in the house ball community. RESULTS Of the 504 study participants, 67% were male, 14% female, and 18% transgender. Mean age was 24 years (range=15-52(More)
OBJECTIVE Our objective is to describe the characteristic MR imaging features of longitudinal tears of the peroneus brevis tendon and to describe pathologic conditions and normal variants that are associated with these tears which may require surgical intervention at the time of primary tendon repair. MATERIALS AND METHODS We retrospectively reviewed 10(More)
As the largest tarsal bone and the most inferior bone in the body, the calcaneus is responsible for supporting the axial load from the weight of the body. It is most commonly fractured after a fall from a height in which axial loads exceed its support capacity. Calcaneal fractures account for 60% of all tarsal fractures. Conventional radiography is commonly(More)
OBJECTIVE The purpose of this study was to evaluate the prevalence, location, and duration of pneumoperitoneum in postoperative patients and to compare the sensitivities of CT and left lateral decubitus radiography in the detection of postoperative pneumoperitoneum. SUBJECTS AND METHODS Twenty-seven CT scans and 27 abdominal radiographs with the patient(More)
BACKGROUND The radiologic study of choice for evaluation of traumatic arterial injuries is conventional arteriography, but it poses the risks of an invasive procedure. Computed tomographic arteriography (CTA) is emerging as a new way to study arterial anatomy, with the additional advantages of being noninvasive and a technique that allows evaluation of(More)
Painful legs, moving toes is a rare syndrome characterized by leg pain and uncontrolled toe movements. We present a 35-year-old man with a 1-year history of unilateral knee, calf, and medial ankle pain with spontaneous movements of second through fifth toes. Electrodiagnostic studies showed an absent lateral plantar nerve response consistent with a tarsal(More)
OBJECTIVE The peroneocalcaneus internus muscle is a rare muscle of the posterior calf that to our knowledge has not been reported in the radiology literature. The purpose of our study was to describe the normal anatomy and MR characteristics of this muscle in eight patients in whom the muscle was identified. CONCLUSION The peroneocalcaneus internus muscle(More)
Objective The flexor digitorum accessorius longus muscle (FDAL), an anomalous muscle about the ankle, has recently been implicated in tarsal tunnel syndrome. The purpose of this study is to document the prevalence of the FDAL, its MR appearance and its relation to the neurovascular bundle in the tarsal tunnel. Design and patients The prevalence of the FDAL(More)
Despite increasing smoked cocaine-base use, there have been relatively few parametric studies in this area. The major reason for the limited number of studies is the lack of a simple procedure for the administration of precise doses of smoked cocaine-base to human volunteers. This paper describes a new method that allows for the delivery of precise doses of(More)