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Schenk, William B.

Mayo Clinic

Mayo Clinic

Citations 4

Diagnostic Yield of Neck CT Angiography in Young Adults With Anterior Circulation Ischemic Stroke: A Community Based Study
Schenk, William B., Brinjikji, Waleed , Larson, Anthony S. , Nasr, Deena M. , Larson, Anthony

The Neurohospitalist | November 24, 2020 | Volume: 11 | Issue: 2 | Pages: 119-124

10.1177/1941874420974542 Get It

Background and Purpose: Few community-based studies investigating young adult strokes exist. The aim of this study was to determine the diagnostic yield of head and neck CTA in evaluation of anterior circulation ischemic stroke in young adults. Materials and Methods: This retrospective review is limited to patients between the ages of 18-50 presenting to the Mayo Clinic Rochester emergency department or referred from smaller institutions in adjacent counties. Patients with posterior circulation infarcts, amaurosis fugax, central retinal artery occlusion or transient ischemic attacks were excluded. The presence of carotid dissection, webs, plaque, or other high-risk lesions were recorded. Results: A total of 136 patients met inclusion criteria. Mean degree of carotid stenosis ipsilateral to infarct was 14.1%, compared to 6.5% on the contralateral side (p = .006). Ipsilateral mean carotid wall thickness measured .79 mm, compared to contralateral thickness of .80 mm (p = .51). Ipsilateral low-density plaque was observed in 22 patients (16.2%), and 21 patients (15.4%) on the contralateral side (p = .87). Ipsilateral calcified plaque was observed in 37 patients (27.2%), and 29 patients (21.3%) on the contralateral side (p = .31). 20 (14.7%) ipsilateral dissections were noted, compared to 4 (2.9%) contralateral dissections (p = .001). 3 (2.2%) ipsilateral carotid webs were identified, compared to 0 contralateral webs (p = .25). Conclusion: Carotid dissection was the most common cause of anterior circulation infarct identified on cervical CTA in this population. Carotid webs and atherosclerosis were not common findings.
Drug-associated vasculitis occurring after treatment with pembrolizumab
Tolaymat, Omar , Pinkston, Olga, Schenk, William B., Mergo, Patricia J. , Berianu, Florentina , Wang, Benjamin X. , Joseph, Richard W.

Rheumatology | February 18, 2019 | Volume: 58 | Issue: 8 | Pages: 1501-1503

10.1093/rheumatology/kez051 Get It

Recurrent myxoinflammatory fibroblastic sarcoma: a case report
Jagadesh, Niveditha , Miller, Daniel , Schenk, William B., Attia, Steven , Sherman, Courtney E. , Cortese, Cherise , May, Byron C. , Miller, Daniel H , Schenk, William, Miller, Robert C.

Clinical Case Reports | April 20, 2017 | Volume: 5 | Issue: 6 | Pages: 871-875

10.1002/ccr3.949 Get It

Key Clinical Message Myxoinflammatory fibroblastic sarcoma is a rare sarcoma which typically presents in the extremities and is treated by definitive surgery. In recurrent disease, the reported utilization of radiotherapy is increasing, and more modern techniques such as intensity‐modulated radiotherapy may be improving long‐term outcomes.
Small Cell Carcinoma of the Prostate in an Elderly Patient: A Case Report and Review of the Literature
Whitaker, D., Miller, Daniel , Jagadesh, Niveditha , Strong, Gerald, Hintenlang, Lauren L., Schenk, William B., Broderick, Gregory A. , Tzou, Katherine S., Buskirk, Steven J., Whitaker, Dale Alan, Miller, Daniel H, Strong, Gerald W, Hintenlang, Lauren

Rare Tumors | December 30, 2016 | Volume: 8 | Issue: 4 | Pages: 176-178

10.4081/rt.2016.6657 Get It

Prostate cancer is the most common malignancy of men in the United States. Small-cell carcinoma (SCC), which typically presents as an aggressive lung malignancy, is a rare diagnosis within the setting of prostate cancer pathology. Due to its limited prevalence, little information regarding the treatment and prognosis of this disease in large populations is available. To date our current knowledge base is largely limited to case reports and retrospective case reviews. The mainstay of treatment for this particular histology most often involves a multimodality approach utilizing chemotherapy in conjunction with radiation therapy, androgen deprivation therapy, or prostatectomy. Here we present the case of an elderly 89-year-old Caucasian male who was diagnosed with SCC of the prostate. Despite proceeding with a course of definitive radiotherapy, the patient experienced rapid progression of disease and ultimately elected to discontinue radiation therapy and receive hospice care.