scholarly journals Metastatic Blue Nevus-Like Melanoma Detected by Liquid-Based Catheterized Urine Cytology

2018 ◽  
Vol 30 (3) ◽  
pp. 356 ◽  
Author(s):  
Sue Kyung Kim ◽  
Ji Young Yang ◽  
Jae Ho Han ◽  
Ji Eun Kwon
Keyword(s):  
Urine Cytology ◽  
Blue Nevus

Golgi Apparatus and Melanogenesis: Ultrastructural Study of a Human Cellular Blue Nevus (Melanocytoma)

1973 ◽  
Vol 31 ◽  
pp. 380-381
Author(s):  
S.R. Allegra
Keyword(s):  
Endoplasmic Reticulum ◽  
Golgi Apparatus ◽  
Ultrastructural Study ◽  
The Other ◽  
Blue Nevus ◽  
Normal Complement ◽  
Golgi Vesicles ◽  
Golgi System ◽  
The Subject ◽  
Cellular Blue Nevus

The respective roles of the ribo somes, endoplasmic reticulum, Golgi apparatus and perhaps nucleus in the synthesis and maturation of melanosomes is still the subject of some controversy. While the early melanosomes (premelanosomes) have been frequently demonstrated to originate as Golgi vesicles, it is undeniable that these structures can be formed in cells in which Golgi system is not found. This report was prompted by the findings in an essentially amelanotic human cellular blue nevus (melanocytoma) of two distinct lines of melanocytes one of which was devoid of any trace of Golgi apparatus while the other had normal complement of this organelle.

A Case of Compound Blue Nevus

2016 ◽  
Vol 78 (1) ◽  
pp. 33-35
Author(s):  
Harunari SHIMOYAMA ◽  
Chikako SUZUKI ◽  
Yoshihiro SEI ◽  
Toshiaki SAIDA
Keyword(s):  
Blue Nevus

scholarly journals Simultaneous Presentation of Localized Basaloid Follicular Hamartoma and Epithelioid Blue Nevus in a 44-Year-Old Patient

2011 ◽  
Vol 102 (3) ◽  
pp. 233-235
Author(s):  
C. Mauleón ◽  
M. Valdivielso ◽  
E. Chavarría ◽  
J.M. Hernanz ◽  
I. Casado
Keyword(s):  
Simultaneous Presentation ◽  
Blue Nevus

Evidence-based diagnostic accuracy measurement in urine cytology using likelihood ratios

2020 ◽  
Author(s):  
Nickolas Myles ◽  
Manon Auger ◽  
Yonca Kanber ◽  
Derin Caglar ◽  
Wassim Kassouf ◽  
...  
Keyword(s):  
Diagnostic Accuracy ◽  
Urine Cytology ◽  
Evidence Based ◽  
Likelihood Ratios ◽  
Accuracy Measurement

scholarly journals Agminated blue nevus: GNAQ mutations and beyond

2020 ◽  
Author(s):  
P. Rodríguez-Jiménez ◽  
F. Mayor-Sanabria ◽  
A. Rütten ◽  
J. Fraga ◽  
M. Llamas-Velasco
Keyword(s):  
Blue Nevus

Urine cytology findings in patients with biopsy‐confirmed urothelial carcinoma in situ with plasmacytoid features

2021 ◽  
Author(s):  
Meredith M. Nichols ◽  
Jordan P. Reynolds ◽  
Jesse K. McKenney ◽  
Marlo M. Nicolas ◽  
Patrick J. McIntire ◽  
...  
Keyword(s):  
Urothelial Carcinoma ◽  
Carcinoma In Situ ◽  
Urine Cytology

scholarly journals Reactivation of BK Polyomavirus in Urine Cytology Is Not Associated with Urothelial Cell Carcinoma

Viruses ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 1412
Author(s):  
Faisal Klufah ◽  
Ghalib Mobaraki ◽  
Axel zur Hausen ◽  
Iryna V. Samarska
Keyword(s):  
Cell Carcinoma ◽  
Urine Cytology ◽  
Urothelial Cell ◽  
The Other ◽  
Urothelial Cell Carcinoma ◽  
Tissue Samples ◽  
Bk Polyomavirus ◽  
Ffpe Tissues ◽  
Immunosuppressed Patients ◽  
History Of

BK polyomavirus (BKPyV) has been associated with some high-grade and special urothelial cell carcinoma (UCC) subtypes in immunosuppressed patients. Here, we evaluated the relationship of BKPyV-positive urine cytology specimens (UCS) with UCC. A large single-institution database was retrospectively searched for UCS positive for decoy cells, suggesting BKPyV infection. These were tested for the presence of BKPyV by PCR and immunohistochemistry (IHC) in urine sediments and formalin-fixed paraffin-embedded (FFPE) tissue samples of UCC. Decoy cells were reported in 30 patients out of the database with 22.867 UCS. Of these 30 patients, 16 (53.3%) had no history of UCC. Six patients out of these 16 had a history of transplantation, 4 had a history of severe chronic medical conditions, and 6 had no chronic disease. The other fourteen patients were diagnosed with either in situ or invasive UCC of the urinary bladder (14/30; 46.6%) prior to the detection of decoy cells in the urine. Nine of these UCC patients received intravesical treatment (BCG or mitomycin) after the first presentation with UCC. However, the clinical data on the treatment of the other five UCC patients was lacking. IHC identified BKPyV-positivity in the urine samples of non-UCC and UCC patients, while no BKPyV positivity was found in FFPE tissues of primary UCCs and metastases. In addition, BKPyV-PCR results revealed the presence of BKPyV DNA in the urine of the UCC cases, yet none in the UCC tissues itself. These data strongly indicate that BKPyV reactivation is not restricted to immunosuppression. It can be found in UCS of the immunocompetent patients and may be related to the intravesical BCG or mitomycin treatment of the UCC patients.

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