Jonah Shiroky
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Previous Organizations / Institutes
The organizations / institutes from the scholar's other articles in the past ten years
Research Interests
Jonah Shiroky has a total of 13 co-authors. Here are the top co-authors by number of shared publications:
Erin Lillie
Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, Canada
2 shared publicationsMarika Sevigny
Division of General Surgery, Department of Surgery, University of Toronto, Canada
2 shared publications- Paul Jack Karanicolas
Department of Surgery, University of Toronto, 149 College Street, 5th Floor, Toronto, Ontario, M5T 1P5, Canada; Department of Surgery, Sunnybrook Health Sciences Centre, 2075 Bayview Avenue, Toronto, Ontario, M4N 3M5, Canada; Evaluative Clinical Sciences, Sunnybrook Research Institute, 2075 Bayview Avenue, Toronto, Ontario, M4N 3M5, Canada
2 shared publications Woo Jin Choi
Division of General Surgery, Department of Surgery, University of Toronto, Canada
2 shared publicationsAnand M.D. Govindarajan
Department of Surgery, University of Toronto, Toronto, Canada
1 shared publicationDavid R. M.D. Urbach
Department of Surgery, University of Toronto, Toronto, Canada
1 shared publication
Latest Publications
- 1 June 2018
- Published by Wolters Kluwer Health in Diseases of the Colon & Rectum
- Vol. 61 (6) , 679-685
Characteristics of Adrenal Masses in Familial Adenomatous Polyposis
BACKGROUND: Adrenal masses are a known extraintestinal manifestation of familial adenomatous polyposis. However, the literature on this association is largely confined to case reports. OBJECTIVE: This study aimed to determine the characteristics of adrenal masses in familial adenomatous polyposis and their clinical significance, as well as to estimate their prevalence. Mutational analysis was conducted to determine if any potential genotype-phenotype correlations exist. DESIGN: This is a retrospective cohort study. SETTING: Analysis included all patients meeting the criteria of classic familial adenomatous polyposis who were registered with the Familial Gastrointestinal Cancer Registry, a national Canadian database. PATIENTS: Appropriate imaging or autopsy reports were available in 311 registry patients. Patients with adrenal metastases were excluded. OUTCOME MEASURES: Data collection included demographic data, mutation genotype, adrenal mass characteristics, surgical interventions and mortality. RESULTS: The prevalence of adrenal masses was 16% (n = 48/311). The median age at diagnosis of adrenal mass was 45 years. The median diameter of adrenal mass at diagnosis was 1.7 cm (interquartile range, 1.4–3.0) with a median maximal diameter of 2.5 cm (interquartile range, 1.7–4.1) with median imaging follow-up of 48 months. The majority of adrenal masses were benign (97%, n = 61/63). Surgery was performed on 7 patients because of concerns for size, malignancy, or hormonal secretion. One adrenal-related death was due to an adrenocortical carcinoma. Mutation analysis did not identify any specific genotype-phenotype correlations. LIMITATIONS: There were incomplete or insufficient endocrinology data available in the registry to allow for the analysis of hormone secretion patterns. CONCLUSIONS: Adrenal masses are approximately twice as prevalent in the familial adenomatous polyposis population as in previous studies of the general population. Nearly all mutations led to truncation of the APC gene; however, there was no genetic signature to help predict those at increased risk. The majority of adrenal lesions identified were of benign etiology; thus, an intensive management or surveillance strategy with imaging screening is likely unwarranted. See Video Abstract at http://links.lww.com/DCR/A507.
- 1 June 2018
- Published by Wolters Kluwer Health in Diseases of the Colon & Rectum
- Vol. 61 (6) , 679-685
Characteristics of Adrenal Masses in Familial Adenomatous Polyposis
BACKGROUND: Adrenal masses are a known extraintestinal manifestation of familial adenomatous polyposis. However, the literature on this association is largely confined to case reports. OBJECTIVE: This study aimed to determine the characteristics of adrenal masses in familial adenomatous polyposis and their clinical significance, as well as to estimate their prevalence. Mutational analysis was conducted to determine if any potential genotype-phenotype correlations exist. DESIGN: This is a retrospective cohort study. SETTING: Analysis included all patients meeting the criteria of classic familial adenomatous polyposis who were registered with the Familial Gastrointestinal Cancer Registry, a national Canadian database. PATIENTS: Appropriate imaging or autopsy reports were available in 311 registry patients. Patients with adrenal metastases were excluded. OUTCOME MEASURES: Data collection included demographic data, mutation genotype, adrenal mass characteristics, surgical interventions and mortality. RESULTS: The prevalence of adrenal masses was 16% (n = 48/311). The median age at diagnosis of adrenal mass was 45 years. The median diameter of adrenal mass at diagnosis was 1.7 cm (interquartile range, 1.4–3.0) with a median maximal diameter of 2.5 cm (interquartile range, 1.7–4.1) with median imaging follow-up of 48 months. The majority of adrenal masses were benign (97%, n = 61/63). Surgery was performed on 7 patients because of concerns for size, malignancy, or hormonal secretion. One adrenal-related death was due to an adrenocortical carcinoma. Mutation analysis did not identify any specific genotype-phenotype correlations. LIMITATIONS: There were incomplete or insufficient endocrinology data available in the registry to allow for the analysis of hormone secretion patterns. CONCLUSIONS: Adrenal masses are approximately twice as prevalent in the familial adenomatous polyposis population as in previous studies of the general population. Nearly all mutations led to truncation of the APC gene; however, there was no genetic signature to help predict those at increased risk. The majority of adrenal lesions identified were of benign etiology; thus, an intensive management or surveillance strategy with imaging screening is likely unwarranted. See Video Abstract at http://links.lww.com/DCR/A507.
- 1 October 2007
- Published by SAGE Publications in American Journal of Alzheimer's Disease and Other Dementias®
- Vol. 22 (5) , 406-415
Can You Have Dementia With an MMSE Score of 30?
Objective. To investigate the possibility that a patient with a diagnosis oF probable Alzheimer's disease (AD) can still obtain a score oF 30/30 on the Mini-Mental State Exam (MMSE). Design. Chart review. Setting. The McGill University/Jewish General Hospital Memory Clinic. Participants. Participants were selected From the Memory Clinic's patient database. All underwent comprehensive evaluations, including relevant blood work and a computed tomographic scan or a magnetic resonance imaging scan oF the brain to rule out other causes oF dementia. Measurements. All patients had one or more neuropsychological evaluation. Data oF all psychometric testing, including the MMSE, were gathered From these visits. Results. Eight patients were Found to meet the criteria oF AD although achieving a score oF 30/30 on the MMSE. Four oF 8 patients achieved this score although they were taking cholinesterase inhibitors. Conclusion. Although rare, it is possible to achieve a score oF 30/30 on the MMSE even iF a subject is suFFering From a dementing illness.
- 1 October 2007
- Published by SAGE Publications in American Journal of Alzheimer's Disease and Other Dementias®
- Vol. 22 (5) , 406-415
Can You Have Dementia With an MMSE Score of 30?
Objective. To investigate the possibility that a patient with a diagnosis oF probable Alzheimer's disease (AD) can still obtain a score oF 30/30 on the Mini-Mental State Exam (MMSE). Design. Chart review. Setting. The McGill University/Jewish General Hospital Memory Clinic. Participants. Participants were selected From the Memory Clinic's patient database. All underwent comprehensive evaluations, including relevant blood work and a computed tomographic scan or a magnetic resonance imaging scan oF the brain to rule out other causes oF dementia. Measurements. All patients had one or more neuropsychological evaluation. Data oF all psychometric testing, including the MMSE, were gathered From these visits. Results. Eight patients were Found to meet the criteria oF AD although achieving a score oF 30/30 on the MMSE. Four oF 8 patients achieved this score although they were taking cholinesterase inhibitors. Conclusion. Although rare, it is possible to achieve a score oF 30/30 on the MMSE even iF a subject is suFFering From a dementing illness.