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Hobnail papillary thyroid

Meryl C Nath, Lori A Erickson
Papillary thyroid carcinomas are the most common endocrine cancer and are usually associated with good survival. However, some variants of papillary thyroid carcinomas may behave more aggressively than classic papillary thyroid carcinomas. The tall cell variant of papillary thyroid carcinoma is the most common aggressive variant of papillary thyroid carcinoma. The aggressive behavior has been ascribed to the histologic subtype and/or to the clinicopathologic features, an issue that remains controversial. The columnar variant of papillary thyroid carcinoma can be aggressive, particularly in older patients, with larger tumors showing a diffusely infiltrative growth pattern and extrathyroidal extension...
May 2018: Advances in Anatomic Pathology
Zubair W Baloch, Virginia A LiVolsi
This article reviews the small percentage of thyroid tumours that are not classified as classic papillary thyroid carcinoma, follicular thyroid carcinoma, and medullary thyroid carcinoma. It includes subtypes of papillary thyroid carcinoma, including, tall-cell, hobnail/micropapillary, columnar cell, diffuse sclerosing and solid variants. Poorly differentiated carcinoma, high-grade carcinoma and anaplastic thyroid carcinoma are reviewed. Also discussed are entities that are unusual but need to be recognized as primary thyroid neoplasms, i...
January 2018: Histopathology
Sara Watutantrige-Fernando, Federica Vianello, Susi Barollo, Loris Bertazza, Francesca Galuppini, Elisabetta Cavedon, Simona Censi, Clara Benna, Eric Casal Ide, Alessandro Parisi, Davide Nacamulli, Maurizio Iacobone, Gianmaria Pennelli, Caterina Mian
BACKGROUND: The hobnail variant of papillary thyroid carcinoma (HPTC) has an aggressive behavior. The aims of this prospective study were to define the clinical/molecular characteristics of HPTC, and to compare them to those of conventional papillary thyroid carcinoma (PTC). METHODS: From 2010 to 2016, 25 cases of HPTC, characterized clinically and molecularly (BRAF, RAS, TERT promoter, and TP53 mutations), were compared to a series of 165 consecutive cases of PTC...
January 2018: Thyroid: Official Journal of the American Thyroid Association
Francesca Ambrosi, Alberto Righi, Costantino Ricci, Lori A Erickson, Ricardo V Lloyd, Sofia Asioli
Papillary thyroid carcinoma is the most common thyroid malignancy and it is usually associated with a good prognosis. However, recurrence, metastases, and cancer death may occur in 10 to 15% of patients with more aggressive types of papillary thyroid carcinoma, such as tall cell, columnar cell, solid variant, or the more recently described hobnail variant of papillary thyroid carcinoma. Papillary thyroid carcinoma with a prominent hobnail pattern is a moderately differentiated papillary thyroid carcinoma variant with aggressive clinical behavior and significant mortality...
December 2017: Endocrine Pathology
Sarmad H Jassim, Amer Khiyami, Jane K Nguyen, Santhi Ganesan, Joseph Tomashefski, Joram Sawady
BACKGROUND: Clear cell carcinoma of the bladder is a rare variant of urinary bladder adenocarcinoma. We report a case of a patient with clear cell carcinoma of the bladder and a concordant right upper lobe pulmonary adenocarcinoma with clear cell features, and we address the role of immunohistochemistry and cytogenetic analysis in distinguishing the two primary malignancies. CASE PRESENTATION: Our patient was a 59-year-old African American woman who presented with hematuria...
May 12, 2017: Journal of Medical Case Reports
Lianghong Teng, Wanglong Deng, Junliang Lu, Jing Zhang, Xinyu Ren, Huanli Duan, Shannon Chuai, Feidie Duan, Wei Gao, Tao Lu, Huanwen Wu, Zhiyong Liang
BACKGROUND: As a rare but aggressive papillary thyroid carcinoma (PTC) variant, the genetic changes of hobnail variant of PTC (HVPTC) are still unclear. RESULTS: The prevalence of HVPTC was 1.69% (18/1062) of all PTC diagnosed in our cohort. 73 samples from 55 patients (17 HVPTC, 26 CPTC, 7 PDTC and 5 ATC) were successfully analyzed using targeted NGS with an 18-gene panel. Thirty-seven mutation variant types were identified among 11 genes. BRAF V600E mutation was the most common mutation, which is present in almost all HVPTC samples (16/17, 94%), most CPTC samples (20/26, 77%), and none of the ATC and PDTC samples...
March 28, 2017: Oncotarget
Mohammed T Lilo, Justin A Bishop, Syed Z Ali
Variants of papillary thyroid carcinoma (PTC) account for up to 25% of the cases, some of which are proven to be associated with aggressive clinical behavior such as tall cell and columnar cell variants. Hobnail variant of PTC (HVPTC) is recently described as a rare and aggressive variant of PTC. Herein, we are reporting a case of HVPTC in a patient who presented with hemoptysis and an intratracheal blood clot that was aspirated and submitted for cytopathological examination. Cytomorphology displayed neoplastic cells with profound micropapillary architecture, elongated nuclei, and prominent hobnail configuration...
August 2017: Diagnostic Cytopathology
Luca Morandi, Alberto Righi, Francesca Maletta, Paola Rucci, Fabio Pagni, Marco Gallo, Sabrina Rossi, Leonardo Caporali, Anna Sapino, Ricardo V Lloyd, Sofia Asioli
Hobnail variant of papillary thyroid carcinoma (HPTC) represents a recently described, aggressive and rare group of thyroid tumors with poorly understood pathogenesis. Molecular data about this group of cancers are few, and a more detailed molecular characterization of these tumors is needed. The main objective of the study is to define a comprehensive molecular typing of HPTC. Eighteen patients affected by HPTC, including eighteen primary tumors and four lymph node metastases, were screened for NRAS, KRAS, HRAS, BRAF, TP53, PIK3CA, hTERT, PTEN, CDKN2A, EGFR, AKT1, CTNNB1 and NOTCH1 gene mutations...
February 2017: Endocrine-related Cancer
José M Cameselle-Teijeiro, Irene Rodríguez-Pérez, Ricardo Celestino, Catarina Eloy, Magalí Piso-Neira, Ihab Abdulkader-Nallib, Paula Soares, Manuel Sobrinho-Simões
The hobnail variant (HV) of papillary thyroid carcinoma (PTC) is an unusual entity recently proposed as an aggressive variant of PTC. We describe the pathologic and molecular features of 2 cases of HV of PTC. Both tumors presented in stage III (pT3 pN1a M0). The first case was diagnosed in a 62-year-old man, whereas the second was in a 53-year-old woman. Both patients were treated with total thyroidectomy and radioactive iodine. The primary tumors showed a hobnail/micropapillary pattern in ≥50% of the neoplasm, and positivity for TTF-1, TTF-2, thyroglobulin (TG), cyclin D1, and p53...
June 2017: American Journal of Surgical Pathology
Antonio Ieni, Valeria Barresi, Roberta Cardia, Luana Licata, Flavia Di Bari, Salvatore Benvenga, Giovanni Tuccari
Papillary thyroid carcinoma (PTC) has a good prognosis with a 10-yr survival greater than 90%. Recently, a micro-papillary pattern with hobnail appearance (MPHC) in PTC has been indicated as associated with poor prognosis, but this suggestion is based only on a few cases from geographical areas different from ours. Two-hundred ninety-nine consecutive PTC cases were collected between the years of 1992 and 2014 at our institution. The corresponding histologic sections (at least 6 for each case) were stained with hematoxylin and eosin and reviewed independently by two pathologists to reach a consensus on the identification and quantification of the MPHC...
December 2016: Reviews in Endocrine & Metabolic Disorders
Young Sub Lee, Yourha Kim, Sora Jeon, Ja Seong Bae, So Lyung Jung, Chan Kwon Jung
The hobnail variant of papillary thyroid carcinoma (PTC) is a rare, aggressive variant in which > 30% of the tumor cells have hobnail features. The clinical behavior and pathologic characteristics of these tumors are still unclear due to the rarity of the entity. The present study aimed to investigate cytologic, clinical, pathological, and molecular features of the hobnail variant from our data and from the literature. We retrospectively retrieved 10 cases of hobnail variant from 2,904 consecutive PTC patients...
2015: International Journal of Clinical and Experimental Pathology
Joerg Schwock, Gita Desai, Karen M Devon, Ozgur Mete, Valérie Dubé
No abstract text is available yet for this article.
December 2015: Diagnostic Cytopathology
Serpil Dizbay Sak
Classically characterized by its papillary appearance, papillary thyroid carcinoma is the most common malignant neoplasm of the thyroid. Several variants of papillary carcinoma have been described considering size (microcarcinoma); nature of the tumor boundaries (encapsulated); architecture (follicular, macrofollicular, cribriform-morular, solid, micropapillary); cellular characteristics (tall cell, columnar, oncocytic, clear cell, hobnail); additional tumor components (papillary carcinoma with focal insular component, papillary carcinoma with spindle and giant cell carcinoma, papillary carcinoma with squamous cell carcinoma, papillary carcinoma with mucoepidermoid carcinoma); stromal features (papillary carcinoma with fasciitis like stroma); or a combination of the abovementioned characteristics (diffuse sclerosing, Warthin-like)...
2015: Türk Patoloji Dergisi
Jianjun Xie, Yumin Wang, Jie Zhang, Renya Zhang
No abstract text is available yet for this article.
January 2015: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
Changli Yue, Yong Zhang, Li Xing, Yihua Zhao, Jiamin Chen, Yulan Jin, Honggang Liu
OBJECTIVE: To explore the relationship between histomorphological factors and lymph node metastasis (LNM) in papillary thyroid carcinoma (PTC). METHODS: A total of 153 paraffin-embedded specimens of PTC treated at Beijing Tongren Hospital, Capital Medical University were collected from January 1, 2006 to December 31, 2013 and assessed by hematoxylin and eosin staining. The tumor growth patterns (infiltrative tumor border, lateral tubular growth and intraglandular dissemination), histomorphological characteristics (hobnail features, loss of cohesiveness/polarity (LOCP) and micropapillary structures) and several clinicopathological parameters were evaluated for their values in LNM...
December 16, 2014: Zhonghua Yi Xue za Zhi [Chinese medical journal]
Anne Marie Amacher, Bella Goyal, James S Lewis, Samir K El-Mofty, Rebecca D Chernock
Papillary thyroid carcinoma is the most common thyroid carcinoma and has a generally favorable prognosis. There are several well-characterized variants, some of which are associated with more aggressive clinical behavior. Hobnail is a recently described rare variant that appears to behave more aggressively. Initial reports characterizing this variant focused on primary tumors and excluded other recognized variants, as well as poorly differentiated and anaplastic thyroid carcinomas, from analysis. Here, we evaluate the frequency of hobnail features in both primary and metastatic papillary thyroid carcinomas, including in association with other known variants, and also in poorly differentiated and anaplastic thyroid carcinomas...
February 2015: American Journal of Surgical Pathology
Ayana Suzuki, Mitsuyoshi Hirokawa, Miyoko Higuchi, Naoki Yamao, Seiji Kuma, Hirotoshi Nakamura, Nobuyuki Amino, Akira Miyauchi
BACKGROUND: The cytological findings in conventional specimens (C-S) and liquid-based cytology specimens (LBC-S) are not quite same. The aim of this article is to clarify the cytological findings of papillary thyroid carcinoma (PTC) characteristic of LBC-S. METHODS: Out of 5,971 cases diagnosed in a single institution from March to September in 2012, 161 PTC cases with both C-S and LBC-S were reviewed. Additionally, we compared the findings with those in LBC-S of 55 adenomatous or hyperplastic nodule (AN) and 21 follicular neoplasm (FN) cases...
February 2015: Diagnostic Cytopathology
Carrie C Lubitz, Konstantinos P Economopoulos, Amanda C Pawlak, Kerry Lynch, Dora Dias-Santagata, William C Faquin, Peter M Sadow
BACKGROUND: Papillary thyroid carcinoma (PTC) is increasing in incidence while mortality is unchanged. Identifying patients with higher risk of recurrence and death is essential. Case series identify the hobnail variant of PTC (HVPTC), which is characterized by micropapillary architecture, apocrine features, and loss of cellular polarity. Herein, we describe the clinical course, pathologic features, and mutational profile of patients at our institution with HVPTC. METHODS: A query into the surgical pathologic database (2009-2012) was performed, and clinicopathologic data were collected on all patients carrying the diagnosis of HVPTC...
June 2014: Thyroid: Official Journal of the American Thyroid Association
Sofia Asioli, Francesca Maletta, Fabio Pagni, Donatella Pacchioni, Alice Vanzati, Sara Mariani, Nicola Palestini, Ricardo V Lloyd, Anna Sapino
Recent reports indicate that hobnail papillary thyroid carcinoma (HPTC) is a rare, but very aggressive variant of papillary thyroid carcinoma. The authors describe the cytological features of five HPTC on fine-needle aspiration biopsies (FNAB). Moreover, their immunophenotype and the presence of B-RAF mutation by pyrosequencing were investigated. The patients' (three females and two males) age ranged from 27 to 86 (mean 65) years. Tumor size ranged from 2 to 9 cm (mean 4.2 cm). FNAB were highly cellular with a bloody background and scant colloid...
January 2014: Diagnostic Cytopathology
N Takagi, M Hirokawa, Y Nobuoka, M Higuchi, S Kuma, A Miyauchi
BACKGROUND: A diffuse sclerosing variant of papillary thyroid carcinoma (DSV-PTC) is a rare variant and reports describing the cytological findings are few. PATIENTS AND METHODS: We studied 24 cytological samples from thyroid fine needle aspirates of 20 patients with DSV-PTC. The specimens were taken from 14 non-nodular lesions and 10 nodules. RESULTS: All aspirates taken from both non-nodular lesions and nodules had sufficient cellularity...
June 2014: Cytopathology: Official Journal of the British Society for Clinical Cytology
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