scholarly journals Expanding spectrum of “spitzoid” lesions: a small series of 4 cases with MAP2K1 mutations

2020 ◽  
Author(s):  
K. G. P. Kerckhoffs ◽  
T. Aallali ◽  
C. A. Ambarus ◽  
V. Sigurdsson ◽  
A. M. L. Jansen ◽  
...  
Keyword(s):  
Significant Proportion ◽  
Malignant Potential ◽  
Low Grade ◽  
Superficial Spreading ◽  
Activating Mutations ◽  
Distinct Phenotype ◽  
Melanocytic Tumors ◽  
Melanocytic Tumor ◽  
Small Series ◽  
Spitz Nevi

Abstract The molecular background of a significant proportion of spitzoid neoplasms is still unknown. Recently, activating mutations in MAP2K1 have been described in a few spitzoid lesions, but not in benign Spitz nevi. We report four cases of melanocytic tumors with spitzoid features in which a MAP2K1 mutation was detected. The lesions did not show a single distinct phenotype and ranged from benign to malignant. Two cases resembled desmoplastic Spitz nevi. Based on the combination of morphological, immunohistochemical, and molecular findings, one case was classified as benign, one as probably benign, possibly intermediate low-grade (MELTUMP—melanocytic tumor of unknown malignant potential), one case was classified as intermediate (MELTUMP), and one case was considered a superficial spreading melanoma with spitzoid features. Based on this, we conclude that MAP2K1 mutations can indicate a spitzoid genetic signature and can be found in both benign and malignant spitzoid neoplasms.

scholarly journals Verruca: Need to Know about Human Papilloma Virus (HPV) Infection

2012 ◽  
Vol 30 (3) ◽  
pp. 151-158 ◽  
Author(s):  
Lubna Khondker ◽  
Md Obaidur Rahman Shah ◽  
Md Shirajul Shirajul Islam Khan
Keyword(s):  
Human Papilloma Virus ◽  
Significant Proportion ◽  
Hpv Infection ◽  
Malignant Potential ◽  
Low Grade ◽  
High Grade ◽  
Cervical Lesions ◽  
Papilloma Virus ◽  
Common Warts ◽  
History Of

Verruca or warts are common significant cause of cosmetic concern and frustration of the patient. Social activities may  be affected. Verruca are formed by benign proliferations of the skin and mucosa that are caused by infection with  Human papilloma virus (HPV). These viruses do not produce acute signs or symptoms but induce a slow, focal expansion of epithelial cells. There are 100 types of Human papilloma virus (HPV). The natural history of common warts is for most of them to spontaneously resolve. But lesions are sometime uncomfortable. Warts typically continue to increase in size and distribution and may become more resistant to treatment over time. A significant  proportion of women with genital HPV infection develops  low-grade cervical lesions. Most of these low-grade lesions regress spontaneously; one study suggests that  approximately 15 percent progress to high-grade cervical  lesions within two years. High-grade cervical lesions have  a strong malignant potential; one study found that about one-third of high-grade lesions progress to cancer within ten years. DOI: http://dx.doi.org/10.3329/jbcps.v30i3.12465 J Bangladesh Coll Phys Surg 2012; 30: 151-158

scholarly journals NCOG-42. INITIAL PRESENTATION AND OUTPATIENT VISIT COMPLIANCE OF INMATES WITH BRAIN TUMORS

2020 ◽  
Vol 22 (Supplement_2) ◽  
pp. ii138-ii138
Author(s):  
Iyad Alnahhas ◽  
Appaji Rayi ◽  
Yasmeen Rauf ◽  
Shirley Ong ◽  
Pierre Giglio ◽  
...  
Keyword(s):  
Brain Tumors ◽  
Civil Liberties ◽  
Delayed Diagnosis ◽  
Low Grade ◽  
Small Series ◽  
Initial Symptoms ◽  
The Ohio State University ◽  
American Civil Liberties Union ◽  
Lost To Follow Up

Abstract INTRODUCTION While advocacy for inmates with cancer has recently gained momentum, little is known about management of brain tumors in inmates. Delays in acknowledging or recognizing nonspecific initial symptoms can lead to delayed diagnosis and treatment. Inmates with cancer are reported to either be ignored or receive substandard care due in part to cost or logistics (American Civil Liberties Union; ASCO Post 2018). METHODS In this retrospective study, we identified inmates with gliomas seen in the Ohio State University Neuro-oncology Center between 1/1/2010-4/20/2019. RESULTS Twelve patients were identified. Median age at presentation was 39.5 years (range 28-62). Eleven patients were Caucasian and one was African American. Diagnoses included glioblastoma (GBM) (n=6), anaplastic astrocytoma (n=1), anaplastic oligodendroglioma (n=1), low-grade astrocytoma (n=3) and anaplastic pleomorphic xanthroastrocytoma (n=1). Patients were more likely to present early after seizures or focal neurologic deficits (9/12) than after headaches alone. Patients with GBM started RT 12-71 days after surgery (median 34.5). One patient’s post-RT MRI was delayed by a month and another with GBM had treatment held after 4 cycles of adjuvant temozolomide (TMZ) due to “incarceration issues”. For one patient who received adjuvant TMZ, the facility failed to communicate with the primary team throughout treatment. Two patients suffered significant nausea while on chemotherapy due to inability to obtain ondansetron in prison, or due to wrong timing. 7/12 (58%) patients were lost to follow-up for periods of 3-15 months during treatment. Three patients refused adjuvant treatment. CONCLUSIONS Although this is a small series, our results highlight the inequities and challenges faced by inmates with gliomas who are more likely to forego treatments or whose incarceration prevents them from keeping appropriate treatment and follow-up schedules. Additional studies are needed to define and address these deficiencies in the care of inmates with brain tumors and other cancers.

Relationship between Immunophenotype and Clinicopathological Findings for Superficial Nonampullary Duodenal Epithelial Tumor

Digestion ◽  
2021 ◽  
pp. 1-8
Author(s):  
Shigeki Fukusada ◽  
Takaya Shimura ◽  
Hiroyasu Iwasaki ◽  
Yusuke Okuda ◽  
Takahito Katano ◽  
...  
Keyword(s):  
Malignant Potential ◽  
Low Grade ◽  
Negative Group ◽  
Epithelial Tumor ◽  
Endoscopic Findings ◽  
Intestinal Phenotype ◽  
Oral Side ◽  
Clinicopathological Findings ◽  
Gastric Phenotype ◽  
The Relationship

<b><i>Introduction:</i></b> The natural history and prognosis of superficial nonampullary duodenal epithelial tumors (SNADETs) remain uncertain. We elucidated the relationship between immunophenotype and clinicopathological features. <b><i>Materials and Methods:</i></b> A total of 98 SNADETs were divided into 3 groups according to immunohistochemical findings: gastric phenotype (G type), gastrointestinal phenotype (GI type), and intestinal phenotype (I type). Cellular dysplasia was divided into low-grade dysplasia and high-grade dysplasia/adenocarcinoma (≥HGD). White opaque substance (WOS) deposition was categorized into diffuse WOS, partial WOS, and no WOS, based on endoscopic findings. <b><i>Results:</i></b> Of the 98 SNADETs, 4 lesions (4.1%) were G type, 32 lesions (32.7%) were GI type, and 62 lesions (63.2%) were I type. All G-type SNADETs were located in the oral side of the papilla including the bulb, and the rate of bulbar lesions was significantly higher in the G type than in the GI and I types (<i>p</i> = 0.004). The most frequent type of WOS was no WOS (4/4, 100%) for G type, partial WOS (19/32, 59.4%) for GI type, and diffuse WOS (34/62, 54.8%) for I type (<i>p</i> &#x3c; 0.001), and loss of intestinal character was significantly correlated with WOS deficiency. GI/I-type SNADETs with partial or no WOS and G-type SNADETs were associated with ≥HGD. Additionally, the frequency of ≥HGD lesion was significantly higher in the CD10-negative group than in the CD10-positive group (57.1 vs. 19.8%, <i>p</i> = 0.043). <b><i>Conclusion:</i></b> Pathological intestinal character was correlated with the presence of WOS, and CD10 loss was associated with malignant potential of SNADETs.

scholarly journals Immunohistochemical profiling of benign, low malignant potential and low grade serous epithelial ovarian tumors

BMC Cancer ◽  
2008 ◽  
Vol 8 (1) ◽  
Author(s):  
Véronique Ouellet ◽  
Tak Hay Ling ◽  
Karine Normandin ◽  
Jason Madore ◽  
Christian Lussier ◽  
...  
Keyword(s):  
Malignant Potential ◽  
Ovarian Tumors ◽  
Low Grade ◽  
Low Malignant Potential

Pancreatic Cysts: Pathologic Classification, Differential Diagnosis, and Clinical Implications

2009 ◽  
Vol 133 (3) ◽  
pp. 423-438 ◽  
Author(s):  
Olca Basturk ◽  
Ipek Coban ◽  
N. Volkan Adsay
Keyword(s):  
Differential Diagnosis ◽  
Malignant Potential ◽  
Common Finding ◽  
Pancreatic Cysts ◽  
Pancreatic Ducts ◽  
Low Grade ◽  
Cystic Lesions ◽  
Dismal Prognosis ◽  
Cystic Tumors ◽  
Pathologic Classification

Abstract Context.—Cystic lesions of the pancreas are being recognized with increasing frequency and have become a more common finding in clinical practice because of the widespread use of advanced imaging modalities and the sharp drop in the mortality rate of pancreatic surgery. Consequently, in the past 2 decades, the nature of many cystic tumors in this organ has been better characterized, and significant developments have taken place in the classification and in our understanding of pancreatic cystic lesions. Objective.—To provide an overview of the current concepts in classification, differential diagnosis, and clinical/biologic behavior of pancreatic cystic tumors. Data Sources.—The authors' personal experience, based on institutional and consultation materials, combined with an analysis of the literature. Conclusions.—In contrast to solid tumors, most of which are invasive ductal adenocarcinomas with dismal prognosis, cystic lesions of the pancreas are often either benign or low-grade indolent neoplasia. However, those that are mucinous, namely, intraductal papillary mucinous neoplasms and mucinous cystic neoplasms, constitute an important category because they have well-established malignant potential, representing an adenoma-carcinoma sequence. Those that are nonmucinous such as serous tumors, congenital cysts, lymphoepithelial cysts, and squamoid cyst of pancreatic ducts have no malignant potential. Only rare nonmucinous cystic tumors that occur as a result of degenerative/necrotic changes in otherwise solid neoplasia, such as cystic ductal adenocarcinomas, cystic pancreatic endocrine neoplasia, and solid-pseudopapillary neoplasm, are also malignant and have variable degrees of aggressiveness.

Secretory Carcinoma in Children and Young Adults: A Case Series

2021 ◽  
pp. 109352662110469
Author(s):  
Caroline T Simon ◽  
Jonathan B McHugh ◽  
Raja Rabah ◽  
Amer Heider
Keyword(s):  
Case Series ◽  
Salivary Gland Neoplasm ◽  
Low Grade ◽  
Secretory Carcinoma ◽  
Patients Âgés ◽  
Male Predominance ◽  
Small Series ◽  
Children And Young Adults ◽  
Grade Malignancy

Secretory carcinoma (SC), previously known as mammary analogue secretory carcinoma, is a rare salivary gland neoplasm that typically presents as a slow-growing painless lesion in the head and neck. SC occurs mainly in adults but has been described in children with the youngest reported patient diagnosed at five years of age. In children the gender distribution has been reported as female to male ratio of 1:1.2. SC is generally considered a low-grade malignancy with characteristic morphological features and immunological profile. SC also harbors ETV6-NTRK3 fusion (t(12;15)(p13:q25)). Surgical resection with or without lymph node dissection is the standard treatment, with generally favorable clinical outcomes. Here we present a single institution case series of six patients (ages 9-21) with SC and a review of the previously described pediatric cases. Our small series showed male predominance in pediatric patients with predominantly low-grade and stage tumors. All cases underwent complete surgical resections and when follow up is available there was no evidence of recurrences or metastases. To the best of our knowledge, this is the only SC case series comprised exclusively of pediatric and youth patients.

scholarly journals Diagnosis and Prognosis of Neuroendocrine Tumours of the Lung by Means of High Resolution Image Analysis

1999 ◽  
Vol 18 (2) ◽  
pp. 109-119 ◽  
Author(s):  
Uta Jütting ◽  
Peter Gais ◽  
Karsten Rodenacker ◽  
Joachim Böhm ◽  
Susanne Koch ◽  
...  
Keyword(s):  
Image Analysis ◽  
High Resolution ◽  
Neuroendocrine Tumours ◽  
Malignant Potential ◽  
Low Grade ◽  
Malignant Tumours ◽  
Cox Regression Analysis ◽  
Resolution Image ◽  
High Resolution Image ◽  
Well Differentiated

Neuroendocrine tumours (NET) of the lung are divided in subtypes with different malignant potential. The first is the benign or low‐grade malignant tumours, well‐differentiated, called typical carcinoids (TC) and the second is the high‐grade malignant tumours, poorly differentiated of small (SCLC) or large cell type (LCLC). Between these tumour types lies the well‐differentiated carcinoma with a lower grade of malignancy (WDNEC). In clinical routine it is very important with regard to prognosis to distinguish patients with low malignant potential from those with higher ones. In this study 32 cases of SCLC, 13 of WDNEC and 14 of TC with a follow‐up time up to 7 years were collected. Sections 4 μm thick from paraffin embedded tissue were Feulgen stained. By means of high resolution image analysis 100 nuclei per case were randomly gathered to extract morphometric, densitometric and textural quantitative features. To investigate the ploidy status of the tumour the corrected DNA distribution was calculated. Stepwise linear discriminant analysis to differentiate the classes and Cox regression analysis for the survival time analysis were applied. Using chromatin textural and morphometric features in two two‐class discriminations, 11 of the 14 TC cases and 8 of the 13 WDNEC cases were correctly classified and 11/13 WDNEC cases and 28/32 SCLC cases, respectively. The WDNEC cases are more similar in chromatin structure to TC than to SCLC. For the survival analysis, only chromatin features were selected to differentiate patients with better and worse prognosis independent of staging and tumour type.

scholarly journals PSEUDO PAPILLARY TUMOUR OF PANCREAS

2009 ◽  
Vol 16 (04) ◽  
pp. 609-610
Author(s):  
QURATULAIN SOOMRO ◽  
Hafeez Soomro ◽  
KHAN MUHAMMAD ◽  
Sardar Khatoon ◽  
ABDUL SAMAD SHAIKH ◽  
...  
Keyword(s):  
Excisional Biopsy ◽  
Malignant Potential ◽  
Definitive Treatment ◽  
Low Grade ◽  
Young Females ◽  
Invasive Tumour ◽  
Papillary Tumour ◽  
Pancreatic Tumour ◽  
Low Malignant Potential

During 05 years period from January 2003 to December 2007,45 cases of Ca. Pancreas were reported to LINAR and only onecase of Pseudo Papillary Tumour of Pancreas is registered. It is a rare, low malignant potential pancreatic tumour. It has unknown pathogenesisand found in young females. We report a case of 24 years old female, who presented with pain in abdomen and low grade fever of 07 monthsduration. Lepratomy and excisional biopsy was done. H/P came as Pseudo Papillary Tumour of Pancreas. At presentation no any L.N. werefound enlarged. Like other malignant pancreatic tumours, this neoplasm does not metastasize. Its definitive treatment is complete surgicalremoval, no any role of chemotherapy because it doesn't metastasized, limited role of radiotherapy in local invasive tumour or in residual mass.

scholarly journals Low-Grade Malignancy Glomus Tumor in a Setting of Multiple Glomus Tumors – Case Report

2019 ◽  
Vol 7 (23) ◽  
pp. 4082-4088
Author(s):  
Violeta Vasilevska-Nikodinovska ◽  
Milan Samardjiski ◽  
Rubens Jovanovik ◽  
Boro Ilievski ◽  
Vesna Janevska
Keyword(s):  
Glomus Tumor ◽  
Subcutaneous Tissue ◽  
Vena Cava ◽  
Malignant Potential ◽  
Biological Behavior ◽  
Low Grade ◽  
Uncertain Malignant Potential ◽  
Glomus Tumors ◽  
Small Nodule ◽  
Multiple Lesions

BACKGROUND: Glomus tumors are rare neoplasms accounting for less than 2% of all soft tissue tumors but multiple lesions may be seen in up to 10% of the patients. Solitary glomus tumor (GT) most frequently appears as small nodule in specific locations such as subungual region or deep dermis. However, rarely these entities have been observed in extracutaneous locations such as the gastrointestinal, cardiovascular, respiratory tracts, and other visceral organs. A small fraction of the GTs may present as tumors of uncertain malignant potential or as malignant glomus tumors. CASE PRESENTATION: We report a patient with multiple glomus tumors on the time of diagnosis, which was histologically diagnosed as an atypical glomus tumor following resection of a tumor thrombus in the left renal vein, inferior vena cava trombus with intracardial extension, and mitral valve specimen. The intramuscular lesion from the thigh was diagnosed as a glomus tumor of uncertain malignant potential. Further examinations revealed multiple lesions trough her body: kidneys, breast, heart and subcutaneous tissue. The diagnosis of glomus tumor of uncertain malignant potential versus glomus tumor with low malignant potential could be quite challenging, and the clinical course may be as a determining factor for final diagnosis. CONCLUSION: To our knowledge, this is the only known case of glomus tumor with multiple organ involvement and aggressive biological behavior at presentation.

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