scholarly journals Misdiagnosed mesonephric adenocarcinoma in the cervix: a case report and review of the literature

2020 ◽  
Author(s):  
Rui Gao ◽  
Long Jin ◽  
Liping Wang

Abstract Background Mesonephric adenocarcinoma (MNAC) in the female reproductive system is a rare tumour caused by remnants of the mesonephric duct, mainly located in the cervix. Because of the rarity of the disease and few reports to date, no specific clinical features have been identified. Its diagnosis is challenging because MNAC may exhibit multiple morphological patterns, complicating differential diagnosis. Case presentation We report a 57-year-old female with cervical MNAC who was misdiagnosed with squamous cell carcinoma by biopsy. Histological study revealed a solid, glandular and papillary tumour. The pattern of papillary growth exhibited a vascular axis, and the morphology was similar to that of high-grade squamous intraepithelial lesions. Based on immunohistochemistry, the tumour cells were negative for CK5/6, P40 and Vimentin; GATA-binding protein 3 (GATA3), CD10, AE1/AE3, CK7 and P16 were diffusely positive; calretinin was focally positive; and oestrogen receptor (ER), progesterone receptor (PR), thyroid transcription factor-1 (TTF1) and p53 were negative. The patient received neoadjuvant chemotherapy, surgery and adjuvant chemotherapy and had no evidence of disease as of 10 months after the operation. The clinical manifestations, pathological features, treatment and prognosis of MNAC were summarized by reviewing the existing literature. Conclusions When tumours with papillary and squamous epithelial growth patterns are detected by biopsy, it is necessary to apply immunohistochemistry analysis to avoid misdiagnosis.

2020 ◽  
Vol 28 (6) ◽  
pp. 658-662
Author(s):  
Ae Ri An ◽  
Seung Yong Park ◽  
Jong Hun Kim ◽  
Kum Ju Chae ◽  
Myoung Ja Chung

Mixed squamous and glandular papilloma (mixed papilloma) of the lung has been reported in fewer than 25 cases in the English literature. Although it is known as a benign tumor, malignant transformation has been reported. Papillary cystic carcinoma is characterized by papillary and cystic growth patterns and has been reported as a subtype of adenocarcinoma, mainly in the salivary glands, breast, and pancreas. In this article, we report a case of adenocarcinoma-papillary cystic pattern arising from mixed papilloma of the lung in a 76-year-old male patient. Chest computed tomography scan revealed an endobronchial mass growing at the right medial segmental bronchus. Middle lobe lobectomy was performed, revealing a 4.9 × 1.9 cm-sized mass that protruded into the bronchus. Microscopically, the tumor showed numerous cysts lined by micropapillary projections. The tumor cells had round and vesicular nuclei with prominent nucleoli, and mitosis was frequent. A limited portion of the tumor consisted of benign mixed papilloma. The tumor showed diffuse immunoreactivity for thyroid transcription factor-1 and strong expression of p16. We investigated the mutational status of cancer-related genes using targeted next-generation sequencing and identified a genetic alteration in the BRAF gene. This is the first case report of papillary cystic carcinoma arising in mixed papilloma of the lung.


Endocrinology ◽  
1998 ◽  
Vol 139 (6) ◽  
pp. 3014-3017 ◽  
Author(s):  
Koichi Suzuki ◽  
Yoshihiko Kobayashi ◽  
Ryohei Katoh ◽  
Leonard D. Kohn ◽  
Akira Kawaoi

2011 ◽  
Vol 207 (11) ◽  
pp. 686-690 ◽  
Author(s):  
Matthias Dettmer ◽  
Tae Eun Kim ◽  
Chan Kwon Jung ◽  
Eun Sun Jung ◽  
Kyo Young Lee ◽  
...  

2007 ◽  
Vol 131 (4) ◽  
pp. 582-587
Author(s):  
David N. Butcher ◽  
Peter Goldstraw ◽  
George Ladas ◽  
Michael E. Dusmet ◽  
Mary N. Sheppard ◽  
...  

Abstract Context.—Intraoperative distinction between primary and metastatic carcinomas in the lung at frozen section remains problematic. Objective.—To assess the value and practicality of immunohistochemistry for thyroid transcription factor 1 at the time of intraoperative frozen section. Design.—Thirty-three patients presented with either a solitary pulmonary mass or 2 pulmonary masses and a history of carcinoma in a different organ. In addition to routine frozen section for assessment of tumor type, we looked for expression of thyroid transcription factor 1, using the EnVision system with abridged methodology. Results.—Ten cases were positive for thyroid transcription factor 1, which was confirmed on subsequent paraffin sections. Nine of these were confirmed as primary pulmonary adenocarcinomas, but 1 case proved to be a rare false-positive metastatic colonic carcinoma. Twenty-three cases were negative on frozen section and reported as favoring metastatic disease. In all cases, additional immunohistochemical data increased diagnostic confidence, but particularly in cases of positive primary pulmonary tumors and in cases with disease metastatic from sites other than the large bowel. The average time in addition to that of the basic frozen section was 24 minutes per test with a cost of £32 (US$57). Conclusions.—Frozen section immunohistochemistry for thyroid transcription factor 1 shows specificity and sensitivity similar to those seen for formalin-fixed tissues and is feasible within the time frame of a thoracotomy. Diagnostic confidence is increased, especially with positive primary pulmonary tumors. However, its practice should be properly planned within an operative procedure as liberal usage will likely have significant staff and cost implications.


2015 ◽  
Vol 59 (6) ◽  
pp. 457-464 ◽  
Author(s):  
Toshiaki Kawai ◽  
Susumu Tominaga ◽  
Sadayuki Hiroi ◽  
Koji Kameda ◽  
Sho Ogata ◽  
...  

Background: The introduction of new therapies has made it important to differentiate between adenocarcinoma and squamous cell carcinoma. To allow the use of various immunocytochemical stains on limited materials, we tried transferring cells from a given smear to multiple slides. Using touch-preparation samples of 215 surgically resected non-small cell lung carcinomas of confirmed histologic classification (adenocarcinoma,n = 101; squamous cell carcinoma,n = 114), we performed immunocytochemistry for thyroid transcription factor-1, napsin A, p40, p63, CK5/6 and desmocollin-3, and compared cytologic staining results with the corresponding resection. Methods: We examined: (a) the expressions of the above 6 antibodies on cells transferred from touch imprints of resected specimens, the extent of staining being considered positive if more than 5% of the area was stained, and (b) the sensitivity, specificity, positive predictive value and negative predictive value for each antibody. Results: The histologic corresponding rate with Papanicolaou staining was only 73%. Regarding the differentiation of adenocarcinoma from squamous cell carcinoma, the sensitivity and specificity for napsin A in adenocarcinoma were 80 and 97%, respectively, while those for p40 in squamous cell carcinoma were 84 and 98%, respectively. Conclusion: The immunocytochemical expressions of napsin A and p40 in imprint cytology seem to be of great utility for the accurate histological differentiation of lung cancers.


In Vivo ◽  
2018 ◽  
Vol 32 (6) ◽  
pp. 1571-1579 ◽  
Author(s):  
ROLANDAS ZABLOCKIS ◽  
EDVARDAS ŽURAUSKAS ◽  
EDVARDAS DANILA ◽  
VYGANTAS GRUSLYS

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