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Diagnostic Cytopathology

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https://www.readbyqxmd.com/read/27902883/metastatic-carotid-body-paraganglioma-of-lungs-and-lymph-nodes-unsuspected-diagnosis-on-ebus-tbna
#1
Kalpana Kumari, Deepali Jain, Rohit Kumar, Anant Mohan, Rakesh Kumar
Paragangliomas are tumors that originate from the extra-adrenal chromaffin and nonchromaffin cells of neural crest origin. Lymph node metastases are common, while distant metastases to lung, liver, and bone are rare events and usually occur in the presence of a long standing clinically evident primary tumor. Primary diagnosis of paraganglioma at a metastatic site without a known primary is a diagnostic challenge. We report a case of an adult woman with incidentally detected metastasis to bilateral lungs from an occult carotid body paraganglioma, which presented a cytopathological diagnostic dilemma on EBUS-TBNA from paratracheal lymph nodes...
November 30, 2016: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/27902879/imprint-cytologic-and-immunocytochemical-findings-of-sclerosing-pneumocytoma
#2
Naoto Kuroda, Masahiko Ohara, Keiko Mizuno, Kenji Yorita
To the best of our knowledge, there is no description on immunocytochemical study of sclerosing pneumocytoma (SP) using a cell transfer method. In this article, we report imprint cytological and immunocytochemical findings of SP. Three cases of SP possessing both imprint cytological and histological materials were examined. All tumors showed well-defined margin grossly. On microscopic examination, the tumor consisted of surface and stromal round cells. Cytologically, surface and stromal round cells showed fragments or clusters of papillary configuration with low N/C ratio and cell clusters of small to medium-sized cells with high N/C ration...
November 30, 2016: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/27900846/plasmablastic-lymphoma-mimicking-carcinomatosis-a-case-report-and-review-of-the-literature
#3
Andrea M Olofson, Eric Y Loo, Paul A Hill, Xiaoying Liu
First identified as a distinct disease entity in HIV-positive patients, plasmablastic lymphoma is a rare aggressive disease which arises predominantly in men and is associated with immunodeficiency of all causes. Although its exact etiology is poorly understood, Epstein-Barr virus infection and MYC gene aberrations have been implicated in its development in both HIV-positive and HIV-negative patients. The disease typically involves extranodal sites with a predilection for the oral cavity but may occur in other locations...
November 30, 2016: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/27888664/ebv-associated-but-hhv8-unrelated-double-hit-effusion-based-lymphoma
#4
Bo-Jung Chen, David Yen-Ting Chen, Chun-Chi Kuo, Shih-Sung Chuang
Effusion-based lymphoma is a rare and unique type of large B-cell lymphoma presenting in effusion without a mass lesion. It shares many clinicopathological features with primary effusion lymphoma (PEL), but is distinct from PEL by the absence of HHV8 association. Double hit lymphoma (DHL) is an aggressive B-cell lymphoma, defined by concurrent rearrangement of MYC and BCL2 or BCL6. DHL often presents as lymphadenopathy or an extranodal mass, but rarely occurs in effusion. Here we report a 61-year-old male with alcoholic cirrhosis presenting as massive ascites and left pleural effusion...
November 26, 2016: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/27888661/use-of-vimentin-immunocytochemical-staining-for-evaluation-of-atypical-cells-in-voided-urine-samples
#5
Margareta Strojan Fležar, Irena Srebotnik-Kirbiš, Helena Gutnik
BACKGROUND: Cytomorphology of exfoliated atypical reactive/repair renal tubular cells (RRTC) can resemble atypical urothelial cells thus suggesting a differential diagnostic question of urothelial neoplasia in urinary cytology. Vimentin expression has been shown in RRTC and used for differentiation from atypical urothelial cells. METHODS: The institutional computer database was searched for urinary cytology cases with vimentin immunocytochemical staining (2008-2012)...
November 26, 2016: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/27888660/strongyloides-in-cerebrospinal-fluid
#6
Ya Xu, Neda Zarrin-Khameh
No abstract text is available yet for this article.
November 26, 2016: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/27888659/intraoperative-diagnosis-of-hydatid-cyst-of-the-ovary-masquerading-as-tumor
#7
Pavneet Kaur Selhi, Sumit Grover, Vikram Narang, Aminder Singh, Neena Sood, Sunil Juneja
Hydatid disease, caused by the larval stage of Echinococcus granulosus, is found most commonly in the liver and lungs, but no organ is immune. The ovarian involvement is often secondary to a cyst's dissemination localized in a different site. Occasionally, the cyst enlarges, thus mimicking an ovarian tumor. Patients with hydatid cysts at unusual locations present with atypical presentations and pose a diagnostic dilemma. A high index of suspicion is required in order to make a correct diagnosis pre-operatively to prevent spillage of the cyst contents during surgery...
November 26, 2016: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/27888658/a-case-of-composite-classical-and-nodular-lymphocyte-predominant-hodgkin-lymphoma-with-progression-to-diffuse-large-b-cell-non-hodgkin-lymphoma-diagnostic-difficulty-in-fine-needle-aspiration-cytology
#8
Dilip K Das, Zafar A Sheikh, Mariam H Al-Shama'a, Bency John, Abdulla M S Alawi, Thamradeen A Junaid
A small percentage of nodular lymphocytic predominant Hodgkin lymphoma (NLPHL) progresses to diffuse large B-cell lymphoma (DLBCL). There have also been rare reports of gray zone lymphoma with features intermediate between classical Hodgkin lymphoma (CHL) and DLBCL. We report a very rare case of composite lymphoma (CHL and NLPHL) progressing to DLBCL, and highlight the diagnostic difficulty faced during its fine-needle aspiration (FNA) cytology diagnosis. A 65-year-old woman presented with a right axillary swelling which was subjected to FNA cytology...
November 26, 2016: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/27879064/clear-cell-carcinoma-first-suspected-in-pap-smear-the-value-of-neutrophil-cannibalism-by-tumor-cells
#9
LETTER
Badr AbdullGaffar
No abstract text is available yet for this article.
November 23, 2016: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/27879059/squash-cytology-of-tanycytic-ependymoma-a-report-of-two-cases
#10
Priyanka Maity Chaudhuri, Shubhamitra Chaudhuri, Debashis Chakrabarty, Sandip Chatterjee, Chhanda Datta, Manoj Kumar Chaudhuri, Uttara Chatterjee
Tanycytic ependymoma is a rare variant of ependymoma which has a predilection for the spinal cord. It is a WHO grade II tumour with favourable outcome. Although squash cytology of ependymoma is well described, there is sparse literature available on squash cytomorphology of tanycytic variant. Here we present two cases of squash cytology of tanycytic ependymoma. In the first case the diagnosis of tanycytic ependymoma was considered. However, in the second case a diagnosis of usual ependymoma was offered. Subsequently histopathology confirmed tanycytic nature in both the cases...
November 23, 2016: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/27873474/spectrum-of-gallbladder-malignancies-on-fine-needle-aspiration-cytology-5-years-retrospective-single-institutional-study-with-emphasis-on-uncommon-variants
#11
Rajesh Kumar, Radhika Srinivasan, Nalini Gupta, Pranab Dey, Arvind Rajwanshi, Raje Nijhawan, Anupam Lal, Naveen Kalra
BACKGROUND: Ultrasound-guided fine-needle aspiration cytology (FNAC) is the standard modality for diagnosis of gallbladder malignant neoplasms. Adenocarcinoma is the most common malignancy; however, other types may also be encountered. The aim of this study was to perform a retrospective analysis of gallbladder malignancies diagnosed on FNAC in the last 5 years to document the cytomorphological spectrum and the variations thereof. METHODS: The records of the Department of Cytology, PGIMER were searched from July 2010 to June 2015 and all cases of gallbladder malignancies were analyzed in detail for cytomorphological characteristics...
November 22, 2016: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/27873469/variation-of-cytopathologists-use-of-the-indeterminate-diagnostic-categories-atypical-and-suspicious-for-malignancy-in-the-cytologic-diagnosis-of-solid-pancreatic-lesions-on-endoscopic-ultrasound-guided-fine-needle-aspirates
#12
Renu K Virk, Roberto Gamez, Swati Mehrotra, Mohammed Atieh, Güliz A Barkan, Eva M Wojcik, Stefan E Pambuccian
: Indeterminate cytologic diagnoses in endoscopic ultrasound guided fine needle aspiration biopsy (EUS-FNA) of solid pancreatic lesions include the diagnostic categories "atypical" (ATY) and "suspicious for malignancy" (SUSP), which are used at variable rates and are associated with variable underlying risk of malignancy. The aim of this study was to determine individual cytopathologists' rates of indeterminate diagnoses in EUS-FNA of solid pancreatic lesions and their relationship to cytopathologists' experience and volume of pancreatic EUS-FNA examined, as well as the potential impact of departmental consensus review on indeterminate diagnoses...
November 22, 2016: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/27860444/cytological-findings-and-bcl10-expression-in-pancreatic-acinar-cell-carcinoma-a-case-report
#13
Akinobu Ohno, Yuichiro Sato, Eriko Nakamura, Hiroshi Noguchi, Takako Tokumitsu, Masahide Hiyoshi, Atsushi Nanashima, Yujiro Asada
BCL10 was recently demonstrated to be a biomarker for pancreatic acinar cell carcinoma, but whether altered BCL10 expression can be detected in cell block specimens is unclear. Here, we report a pancreatic acinar cell carcinoma with cytological findings that showed BCL10 expression in a cell block. A 72-year-old man presented with a pancreatic tumor and underwent endoscopic ultrasound-fine needle aspiration (EUS-FNA) with additional passes performed for cell block preparation. The EUS-FNA cytology showed loose cohesive clusters with focal acinar- or gland-like-structures and prominent nucleoli...
November 17, 2016: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/27863178/fine-needle-aspiration-biopsy-of-pancreatic-neuroendocrine-tumors-correlation-between-ki-67-index-in-cytological-samples-and-clinical-behavior
#14
Cristina Díaz Del Arco, J Miguel Esteban López-Jamar, Luis Ortega Medina, J Ángel Díaz Pérez, Ma Jesús Fernández Aceñero
BACKGROUND: Mitotic count in hematoxylin-eosin stained slides and Ki-67 index allow stratification of patients for prognosis and therapeutic decision making in pancreatic neuroendocrine tumors (PNETs). However, the utility of Ki-67 determination in cytological material and its association to PNET prognosis are under discussion. METHODS: We have retrospectively reviewed all cases of EUS-FNA cytology of pancreatic lesions performed in the Hospital Clínico San Carlos (Madrid) between 2006 and 2016...
November 14, 2016: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/27863187/cytology-of-primary-vaginal-melanoma-an-unusual-report-on-fine-needle-aspiration
#15
Poojan Agarwal, Manju Kaushal
Primary malignant melanoma of the vagina is an extremely uncommon malignancy comprising of less than 10% malignancies of the female genital tract and 0.3% of all melanomas. Melanoblasts are neural crest derivatives and are notorious for causing primary cutaneous neoplasms. However, they involve virtually every organ of the body including eye, intestines and ocular mucosa, probably due to aberrancies in cell migration. Vagina is a rare site and primary melanoma of the vagina occurs in postmenopausal women with vaginal discharge, bleeding, or mass as common presenting complaints...
November 11, 2016: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/27863154/%C3%AE-brown-tumor-of-hyperparathyroidism
#16
Mona Agnihotri, Kanchan Kothari, Leena Naik
No abstract text is available yet for this article.
November 11, 2016: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/27863182/corpora-amylacea-and-molluscum-contagiosum-on-a-cervical-pap-smear
#17
Kaila Buckley, Zaibo Li
When evaluating a Papanicolaou (Pap) smear, the cytology of the squamous epithelial cells is of utmost importance. This is what cytopathologists use to render a diagnosis, ranging from normal to atypical squamous cells of undetermined significance (ASCUS) to high grade squamous intraepithelial lesions, or even squamous cell carcinoma. However, occasionally the pathologist will run into microscopic noncellular material as in our case, such as corpora amylacea on the slides, or even uncommon viral inclusions such as Molluscum contagiosum (MCV)...
November 8, 2016: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/27863160/primary-b-cell-lymphoma-of-the-uterine-cervix-presentation-in-pap-test-slide-and-cervical-biopsy
#18
Guang Yang, Jeremy Deisch, Margaret Tavares, Qin Haixia, Camilla Cobb, Anwar S Raza
This case involved a 69-year-old female who presented with irritative urinary voiding. Imaging studies showed an 18-cm uterine mass centering on the cervix and extending into the bladder. The Pap test slide demonstrated necrotic background and degenerative changes in single and grouped atypical "small round blue cells" with high nuclear/cytoplasm ratio, scant cytoplasm, and hyperchromatic focally cleaved nuclei with occasional nuclear membrane "snout projections." Cervical biopsies showed similar findings. The tumor cells were positive for CD45, CD20, and PAX-5, and negative with epithelial, neuroendocrine, and muscle markers...
November 8, 2016: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/27775241/cytological-features-of-inflammatory-pseudotumor-like-follicular-dendritic-cell-sarcoma-of-spleen-a-case-report
#19
Jen-Fan Hang, Lei-Chi Wang, Chiung-Ru Lai
Here, we present the first cytological report of a primary splenic inflammatory pseudotumor-like follicular dendritic cell sarcoma. The 57 year-old male was incidentally found with a 2.2 cm well-demarcated splenic nodule. A sonography guided fine needle aspiration of the lesion was performed. The cytologic smears revealed loosely cohesive fragments of oval to spindle cells in a background of prominent lymphoplasmacytic infiltration. The cells showed sparse chromatin, distinct nucleoli, syncytial cell borders, and occasional cytoplasmic processes...
October 24, 2016: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/27775224/urine-cytology-of-nonurothelial-malignancies-a-10-year-experience-in-a-large-multihospital-healthcare-system
#20
Deepika Savant, Jaya Bajaj, Cecilia Gimenez, Oana C Rafael, Neda Mirzamani, Karen Chau, Melissa Klein, Kasturi Das
BACKGROUND: Urine cytology is the most frequently utilized test to detect urothelial cancer. Secondary bladder neoplasms need to be recognized as this impacts patient management. We report our experience on nonurothelial malignancies (NUM) detected in urine cytology over a 10-year period. METHODS: A 10-year retrospective search for patients with biopsy-proven NUM to the urothelial tract yielded 25 urine samples from 14 patients. Two cytopathologists blinded to the original cytology diagnosis reviewed the cytology and histology slides...
October 24, 2016: Diagnostic Cytopathology
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