Cyst of Hattori: A Rare Cyst in the Posterior Mediastinum Matthew D. Turner, Elicia Goodale, Barry C. Gibney, Maria Cecilia D. Reyes International Journal of Surgical Pathology.2023; 31(4): 431. CrossRef
A large retroperitoneal Mullerian cyst: case report and review of the literature Elena Parmentier, Jody Valk, Paul Willemsen, Caroline Mattelaer Acta Chirurgica Belgica.2021; 121(4): 278. CrossRef
A case of resected Mullerian cyst in posterior mediastinum Yoshiyuki Susaki, Noriyoshi Sawabata The Journal of the Japanese Association for Chest Surgery.2020; 34(2): 137. CrossRef
Serosal Inclusion Cysts and Arteriovenous Fistulas in Paraprostatic Area of a Dog Daisuke KOJIMA, Kyoko KOJIMA, Kazumi OTA, Yoshihiko KOJIMA Journal of the Japan Veterinary Medical Association.2020; 73(9): 511. CrossRef
A surgical case of Mullerian cyst in the posterior mediastinum Yusuke Kita, Yoshimasa Tokunaga, Taku Okamoto The Journal of the Japanese Association for Chest Surgery.2019; 33(1): 68. CrossRef
CT and MRI characteristics for differentiating mediastinal Müllerian cysts from bronchogenic cysts M. Kawaguchi, H. Kato, A. Hara, N. Suzui, H. Tomita, T. Miyazaki, H. Iwata, M. Matsuo Clinical Radiology.2019; 74(12): 976.e19. CrossRef
A case of Mullerian cyst arising in the posterior mediastinum Masahiro Adachi, Isao Sano, Shintaro Hashimoto, Ryoichiro Doi, Hideki Taniguchi, Kazuto Shigematsu The Journal of the Japanese Association for Chest Surgery.2018; 32(6): 713. CrossRef
Two resected cases of Mullerian cyst in the posterior mediastinum Shotaro Hashimoto, Masato Hisano, Masato Morimoto The Journal of the Japanese Association for Chest Surgery.2018; 32(7): 818. CrossRef
Posterior mediastinal Müllerian cyst: a rare cause of pain in a young woman Rebecca Weedle, Keith Conway, Igor Saftic, Alan Soo Asian Cardiovascular and Thoracic Annals.2017; 25(6): 466. CrossRef
Small cell neuroendocrine carcinoma of the uterine cervix is a distinct subtype of cervical cancer that appears analogous to oat cell carcinoma and carcinoid tumors of the lung. It has been assumed to be derived from the neural crest via argyrophilic cells in the normal endocervix.
We have recently encountered a case of small cell neuroendocrine carcinoma of the uterine cervix coexisting with adenocarcinoma which was argyrophil negative.
A 66-year-old multiparous woman was admitted because of vaginal bleeding for 2 months. Cervicovaginal smear revealed several scattered clusters and sheets of monotonous small cells with some peripheral palisading in the background of hemorrhage and necrosis.
Radical hysterectomy specimen revealed and ulcerofungating tumor on endocervical canal which was composed of two components. Major component of the tumor was made up of monomorphic population of small oval-shaped tumor cells arranged in sheets and partly in acinar structeres or trabecular fashion. Other component was adenocarcinoma, endocervical well-differentiated type.
Argyropilia was present on the Grimelius stain and immunohistochemical studies revealed diffuse positivity to neuron-specific enolase and carcinoembryonic antigen.
Electron microscopic examination showed clusters of small round to oval cells, which had a few well-formed desmosomes and several membrane-bound, dense-core neurosectetory granules.
In adenomatous polyposis coli there are many colonic and extracolonic manifestations, and various combinations of these induce different clinical presentations and syndromes.
We experienced a unique case of adenomatous polyposis of the large intestine and stomach in a 39-year-old man. In the colon, small cell neuroendocrine carcinoma rather than adenocarcinoma had developed, which did not contain adenomatous or carcinomatous foci. The adenomatous polyps in the colon were all small and sessile with no cancerous or precancerous change two years after the resection of the symptomatic gastric adenomas, even though the gastric adenomas were larger and showed dysplastic change. We think this case is another variant of adenomatous polyposis syndrome.
We report the cytologic features of a case of primary small cell carcinoma of the urinary bladder with high grade transitional cell and signet ring cell carcinomatous components. A 64-year-old male presented with gross hematuria for one week. Computed tomography revealed an ill-defined mass in the left lateral wall of the urinary bladder. Urinary cytology showed hypercellularity with predominantly isolated single cells and clustered cells.
They have scanty cytoplasm and naked hyperchromatic nuclei with finely granular nuclear chromatin and rare nucleoli.
The tumor cells occurred predominantly singe cells, but a few in clusters. Nuclear molding was prominent. No glandular formation or nesting was noted. The second tumor cells had high nuclear/cytoplasmic ratio, irregular nuclear membrane, and coarse granular chromatin. The background was inflamed and necrotic. The histologic findings of transurethral resection were mainly composed of small cell carcinoma, and partly transitional cell and signet ring cell carcinomatous components. Small cell neuroendocrine carcinoma have distinctive cytologic features to make a proper diagnosis.