Journal of Pathology and Translational Medicine

Case Study

ThinPrep Cytological Findings of Desmoplastic Small Round Cell Tumor with Extensive Glandular Differentiation: A Case Study: Hyun-Jung Kim, Byeong Seok Sohn, Ji-Eun Kwon, Jeong Yeon Kim, Kyeongmee Park; Korean J Pathol. 2013;47(2):182-187. Published online April 24, 2013; DOI: https://doi.org/10.4132/KoreanJPathol.2013.47.2.182

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Desmoplastic small round cell tumor (DSRCT) is a rare and highly aggressive neoplasm. The cytological diagnosis of this tumor has only been reported in a few cases. In most of these cases, the diagnosis was made using fine-needle aspiration cytology. Most DSRCTs resemble disseminated carcinomatoses in their clinical manifestation as well as cytomorphologically, even in young-adult patients. These authors report a case of using peritoneal-washing and pleural-effusion ThinPrep cytology to diagnose DSRCT, with extensive glandular differentiation and mucin vacuoles. We found that fibrillary stromal fragment, clinical setting, and adjunctive immunocytochemical staining were most helpful for avoiding misdiagnosis.

Citations

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Desmoplastic Small Round Cell Tumor Involving Serous Fluid: Cytologic Features and Diagnostic Pitfalls: A Series of 8 Cases
Nibras L Fakhri, Qiong Gan
American Journal of Clinical Pathology.2023; 160(4): 417. CrossRef
A Review of Effusion Cytomorphology of Small Round Cell Tumors
Lucy M. Han, Christopher J. VandenBussche, Mads Abildtrup, Ashish Chandra, Poonam Vohra
Acta Cytologica.2022; 66(4): 336. CrossRef
Intra-abdominal desmoplastic small blue round cell tumor: A case report
Tareq Hamed Al Taei, Hasan Al Fardan, Sarah Ali Al Mail
Radiology Case Reports.2022; 17(12): 4502. CrossRef
Desmoplastic Small Round Cell Tumor of the Kidney: Report of a Case, Literature Review, and Comprehensive Discussion of the Distinctive Morphologic, Immunohistochemical, and Molecular Features in the Differential Diagnosis of Small Round Cell Tumors Affec
Carlos A. Galliani, Michele Bisceglia, Antonio Del Giudice, Giuseppe Cretì
Advances in Anatomic Pathology.2020; 27(6): 408. CrossRef
Intra-abdominal desmoplastic small round cell tumors: CT and FDG-PET/CT findings with histopathological association
JINGJING CHEN, ZENGJIE WU, BINBIN SUN, DACHENG LI, ZHENGUANG WANG, FANGJUN LIU, HUI HUA
Oncology Letters.2016; 11(5): 3298. CrossRef
Desmoplastic small round cell tumor with sphere‐like clusters mimicking adenocarcinoma
Yukinori Hattori, Akihiko Yoshida, Naoshi Sasaki, Yasuo Shibuki, Kenji Tamura, Koji Tsuta
Diagnostic Cytopathology.2015; 43(3): 214. CrossRef
Tumor intraabdominal desmoplásico de células pequeñas y redondas
Andrés Alejandro Briseño-Hernández, Deissy Roxana Quezada-López, Lilia Edith Corona-Cobián, Agar Castañeda-Chávez, Alfonso Tonatiuh Duarte-Ojeda, Michel Dassaejv Macías-Amezcua
Cirugía y Cirujanos.2015; 83(3): 243. CrossRef
Intra-abdominal desmoplastic small round cell tumour
Andrés Alejandro Briseño-Hernández, Deissy Roxana Quezada-López, Lilia Edith Corona-Cobián, Agar Castañeda-Chávez, Alfonso Tonatiuh Duarte-Ojeda, Michel Dassaejv Macías-Amezcua
Cirugía y Cirujanos (English Edition).2015; 83(3): 243. CrossRef
Diagnostic Pitfalls of Differentiating Desmoplastic Small Round Cell Tumor (DSRCT) From Wilms Tumor (WT)
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American Journal of Surgical Pathology.2014; 38(9): 1220. CrossRef

Original Articles

Cervical Cytologic Smears in Pap Solution vs ThinPrep: Smear Characteristics and Diagnostic Agreement.: Eunah Shin, Jin Kyu Park, No Won Park, Sang Bong Kim, Kyung Jong You, Jae Joon Lee, Woo Ick Yang; Korean J Pathol. 2011;45(6):621-625.; DOI: https://doi.org/10.4132/KoreanJPathol.2011.45.6.621

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Abstract PDF

BACKGROUND
The Pap smear has brought about a dramatic improvement in the prevention of cervical cancer in women worldwide. In an effort to decrease the occasional false negatives in the Pap smear and further increase the screened population, ThinPrep Pap Test (TP), a fluid-based cytology collection method, has been developed. With preservation of claimed advantages of TP, we have developed a Pap test solution for manual preparatory process and compared our manually processed fluid-based Pap smear with TP to identify cytologic similarities and differences between the two methods.
METHODS
Cervical swipes of 204 patients were prospectively collected in the 'Pap solution' and also in PreservCyt solution for TP. Diagnoses and smear characteristics were compared.
RESULTS
The diagnoses of the paired smears agreed in 190 of the 204 cases (93.1%). The smear characteristics regarding overall cellularity and background cellularities were similar in the two methods and the stainability of the cells was virtually the same.
CONCLUSIONS
The 'Pap solution' has similar performance characteristics as TP in many aspects. With its advantages of cost-effectiveness and easier preparatory process, the 'Pap solution' can match previously implemented thin layer preparation.

Citations

Citations to this article as recorded by

Cytological Evaluation and REBA HPV-ID HPV Testing of Newly Developed Liquid-Based Cytology, EASYPREP: Comparison with SurePath
Youn Soo Lee, Gyungyub Gong, Jin Hee Sohn, Ki Sung Ryu, Jung Hun Lee, Shin Kwang Khang, Kyung-Ja Cho, Yong-Man Kim, Chang Suk Kang
Korean Journal of Pathology.2013; 47(3): 265. CrossRef

Comparision of Effectiveness between the ThinPrep(R) and the Cytospin Preparations of the Repeated Urine Cytology.: Soon Won Hong, Hyun Kyung Kim, Ju Yeon Pyo, Yoonhee Lee, Woo Hee Jung, Se Hoon Kim; Korean J Cytopathol. 2007;18(1):55-61.

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Abstract PDF: Once diagnosed as "cell paucity" or "atypia" by the cytospin (CS) preparation, this CS preparation does not secure a precise diagnosis by repeated testing alone. Although the ThinPrep(R) (TP) preparation is acknowledged to show increased cellularity, performing the screening tests for the cases that have enough cellularity, according to CS, raises issues for the cost-effectiveness. To obtain a more precise diagnosis through increasing the cellularity by performing TP, we selected the cases that were diagnosed as "cell paucity" or "atypia" by CS, but they required a more precise diagnosis, and the samples were processed via both CS and TP to compare the results. 11 patients diagnosed as "cell paucity" and 22 patients diagnosed as "atypia" by CS participated in this study. When the detection rate of atypical cells in both preparations with repeated urine cytology was compared, the overall detection rate of TP (16cases, 48.5%) was superior than that of CS (11cases, 33.3%), with statistical significance. The cellularity of both preparations was compared on repeated urine cytology; the general cellularity of TP (29cases, 87.9%) was higher than that of CS (20cases, 60.6%), but there was no statistical significance. Particularly, we repeated the TP for the 1 case that was diagnosed as "atypia" and we performed polyoma virus immunohistochemical staining, which confirmed polyoma virus. In conclusion, we can avoid obtaining negative diagnosis from cases with uncertain "atypia" or "cell paucity" by performing repeated TP testing.

Diagnostic Value of Urine Cytology in 236 cases; a Comparison of Liquid-Based Preparation and Conventional Cytospin Method.: Sun Lee, Jung Hee Park, Sung Im Do, Youn Wha Kim, Juhie Lee, Sung Gu Chang, Yong Koo Park; Korean J Cytopathol. 2007;18(2):119-125.

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Abstract PDF: Urine cytology is an important screening tool for urinary tract neoplasms. Liquid-based preparation methods, such as ThinPrep(R), have been introduced for non-gynecological samples. We aimed to assess the diagnostic accuracy of liquid-based preparations in urine cytology by comparing the results of the conventional Cytospin preparation method for the same samples. A total of 236 cases subject to urine cytology were enrolled in this study from January 2005 to December 2005. All cases were subjected to cystoscopy and if a malignancy was suspected, a biopsy was performed. Urine cytology slides were made using the ThinPrep(R) preparation method and the conventional Cytospin and/or direct smear method from the individual samples. The results of urine cytology were compared with the final cystoscopic or histological diagnoses. We analyzed the sensitivity, specificity, positive predictive value, negative predictive value and accuracy of both cytology preparation methods. A total of 236 slides made using the liquid based method were satisfactory for slide quality, whereas 5 slides (2.1%) prepared by conventional methods were unsatisfactory because of air-drying, a thick smear, or a bloody or inflammatory background. The ThinPrep(R) method showed 53.1% sensitivity, 92.6% specificity, a 92.6% positive predictive value, a 94.1% negative predictive value and 85.6% accuracy, while the conventional method showed 51% sensitivity, 98.4% specificity, a 92.6% positive predictive value, a 98.4% negative predictive value and 88.6% accuracy. Although the diagnostic values were equivalent between the use of the two methods, the quality of the cytology slides and the time consumed during the microscopic examination for a diagnosis were superior for the ThinPrep(R) method than for the conventional method. In conclusion, our limited studies have shown that the use of the liquid based preparation method is beneficial to improve the quality of slides and reduce the duration for a microscopic examination, but did not show better sensitivity, accuracy and predictive values.

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