Mediastinal and Other Neoplasms

2009 ◽  
pp. 487-496
Author(s):  
Jay H. Ryu
Keyword(s):  
Other Neoplasms

Human Neurofibromas in Co-Culture with Mouse Neurons

1982 ◽  
Vol 40 ◽  
pp. 194-195
Author(s):  
R.L. Martuza ◽  
T. Liszczak ◽  
A. Okun ◽  
T-Y Wang
Keyword(s):  
Schwann Cell ◽  
Schwann Cells ◽  
Genetic Disorder ◽  
Cranial Nerves ◽  
Sympathetic Nerves ◽  
Acoustic Neuromas ◽  
Spinal Roots ◽  
Neural Crest Origin ◽  
Multiple Abnormalities ◽  
Other Neoplasms

Neurofibromatosis (NF) is an autosomal dominant genetic disorder with a prevalence of 1/3,000 births. The NF mutation causes multiple abnormalities of various cells of neural crest origin. Schwann cell tumors (neurofibromas, acoustic neuromas) are the most common feature of neurofibromatosis although meningiomas, gliomas, and other neoplasms may be seen. The schwann cell tumors commonly develop from the schwann cells associated with sensory or sympathetic nerves or their ganglia. Schwann cell tumors on ventral spinal roots or motor cranial nerves are much less common. Since the sensory neuron membrane is known to contain a mitogenic factor for schwann cells, we have postulated that neurofibromatosis may be due to an abnormal interaction between the nerve and the schwann cell and that this interaction may be hormonally modulated. To test this possibility a system has been developed in which an enriched schwannoma cell culture can be obtained and co-cultured with pure neurons.

Lymphomatoid Granulomatosis in a Child with Acute Lymphatic Leukemia in Remission

1978 ◽  
Vol 87 (5_suppl) ◽  
pp. 5-10 ◽  
Author(s):  
Seymour R. Cohen ◽  
Stuart Siegel ◽  
Eva Heuser ◽  
Benjamin H. Landing ◽  
Susan Shen ◽  
...  
Keyword(s):  
Survival Rate ◽  
Poor Prognosis ◽  
Lymphoblastic Leukemia ◽  
Lymphomatoid Granulomatosis ◽  
Unknown Etiology ◽  
Acute Lymphatic Leukemia ◽  
Clinical Onset ◽  
Lymphatic Leukemia ◽  
Trachea And Bronchi ◽  
Other Neoplasms

Lymphomatoid granulomatosis, a tumor-like process of unknown etiology, produced progressively destructive disease of the larynx, trachea and bronchi in an eight-year-old girl with acute lymphoblastic leukemia of five years duration. The leukemia had been in remission for 4½ years at the clinical onset of the lymphomatoid granulomatosis. Whether this occurrence suggests that lymphomatoid granulomatosis is a type of neoplasm, or is associated with immunologic depression, cannot be stated. Fortunately rare, and of poor prognosis, the disorder may become more frequent with improved survival rate of patients with leukemia and other neoplasms.

Type of recurrence, cause of death and second neoplasms among 737 patients with ductal carcinoma in situ of the breast: 15-year follow-up.

2021 ◽  
Vol 39 (15_suppl) ◽  
pp. e12592-e12592
Author(s):  
Anna Niwinska ◽  
Michal Kunkiel ◽  
Katarzyna Wardzynska
Keyword(s):  
Ductal Carcinoma ◽  
Recurrence Risk ◽  
Breast Conserving Surgery ◽  
Breast Cancers ◽  
Breast Conserving Treatment ◽  
Second Neoplasms ◽  
True Recurrence ◽  
Treated Breast ◽  
Causes Of Deaths ◽  
Other Neoplasms

e12592 Background: The aim of the study is to assess the results of the treatment of 737 consecutive patients with DCIS with particular attention to the character of recurrences, other neoplasms and causes of deaths. Methods: A retrospective analysis was carried out of 737 consecutive DCIS patients treated in one institution in the years 1996-2011. The percentage of failures, causes of death, cumulated recurrence risk, DFS, OS depending on the method of treatment (mastectomy, breast conserving treatment BCT, breast conserving surgery BCS), was calculated. Results: 66 recurrences (42% DCIS, 58% invasive) were reported: 61 recurrences in the breast, 5 outside the breast. The comparison of mammography images before the initial treatment and after local recurrence revealed the true recurrence in the breast in 48/61 (79%) of cases. The cumulated recurrence risk after 15-year observation, after mastectomy, BCT and BCS was 3.2%, 19.5% and 31.2 %, respectively (p < 0.001). 15-year DFS after mastectomy, BCT and BCS was 72%, 65% and 48%, respectively (p < 0.001). 15-year OS after mastectomy, BCT and BCS was 75%, 83% and 70%, respectively, p = 0.329. In the course of the whole observation period 124 other neoplastic lesions in 121 patients (16%) were reported including 58 (8%) contralateral breast cancers. Deaths due to DCIS progression were reported in 4 (0.5%) of patients. An overwhelming majority (74/86) of deaths was linked to the age of the patients or other diseases, including other neoplasms. Conclusions: The highest recurrence risk reported in patients after BCS was unacceptable and, moreover, it kept growing over the fifteen years of observation. 79% of recurrences in the treated breast were true recurrences. Local recurrences were effectively treated without influence on OS. The percentage of deaths due to DCIS was low.

Brenner Tumours: Oestrogen Activity and Coincidence with other Neoplasms

1971 ◽  
Vol 50 (4) ◽  
pp. 363-366 ◽  
Author(s):  
R. Punnonen ◽  
M. Grönroos ◽  
P. Laurén
Keyword(s):  
Other Neoplasms

Carcinoma and Other Neoplasms of the Male Breast

Radiology ◽  
1949 ◽  
Vol 52 (2) ◽  
pp. 220-229 ◽  
Author(s):  
Benjamin A. Payson ◽  
Rieva Rosh
Keyword(s):  
Male Breast ◽  
Other Neoplasms

scholarly journals The Efficiency of Routine Histopathological Examination for Bilateral Nasal Polyposis

2019 ◽  
pp. 014556131987272
Author(s):  
Ahmad Safadi ◽  
Narin N. Carmel-Neiderman ◽  
Ronen Toledano ◽  
Omer J. Ungar ◽  
Fadi Abu Mokh ◽  
...  
Keyword(s):  
Nasal Polyps ◽  
Histopathological Examination ◽  
Medical Center ◽  
The Elderly ◽  
Inverted Papilloma ◽  
Sinus Surgery ◽  
Low Incidence ◽  
Other Neoplasms ◽  
Histopathological Result ◽  
Endoscopic Nasal Surgery

The necessity to routinely carry out histopathologic examinations of surgically removed polyps in patients with chronic rhinosinusitis with bilateral nasal polyps (CRSwNP) is uncertain. The aim of this study was to describe the histopathology of polyps from a large series of patients who underwent endoscopic sinus surgery for CRSwNP and the rate of neoplasms. This is a retrospective study of the histopathological result of all patients with CRSwNP who underwent functional endoscopic nasal surgery and in whom histologic examination was performed, from 2006 to 2015, in a tertiary medical center. Data on demographics and whether a nasal lesion was suspected for neoplasm prior to surgery were analyzed. Two hundred thirty-five patients underwent bilateral nasal polypectomy and histopathologic examinations of the surgical specimens. The rate of neoplasms in nonsuspicious cases was 2.3% (5 cases) and all were inverted papilloma. To conclude, inverted papilloma and other neoplasms are considered rare incidental findings in patients presenting with bilateral nasal polyps. This study demonstrated a higher rate of the latter than that reported in the literature. Our study further emphasizes that despite the low incidence of these pathologies, a histopathologic examination of every nasal polypectomy is warranted so as not to miss potential serious pathologies. We stress that a routine histopathological examination should be practiced at least in the elderly population.

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