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Not all pancreatic cystic lesions are the same: lesson from a case with three different coexisting neoplasms.
Pathologica
October 2024
Pancreatic and Digestive Endocrine Surgical Research Group, Department of Surgery, Oncology and Gastroenterology, University of Padua, Padua, Italy.
An asymptomatic 79-year old woman presented with a 40 mm pancreatic cystic lesion, located in the pancreatic body-tail and consistent with branch-duct intraductal papillary mucinous neoplasm (BD-IPMN) without "high risk stigmata". During a 4-year follow-up period, imaging showed no mural nodules or main pancreatic duct dilation, and serum CEA and CA19.9 were within normal range.
View Article and Find Full Text PDFA case of posterior mediastinal Müllerian cyst characterized by morphology of serous papillary cystadenoma.
J Cardiothorac Surg
December 2024
Department of Cardiothoracic Surgery, People's Hospital of Zhangjiajie, Zhangjiajie, Hunan, China.
Background: Müllerian cysts of the posterior mediastinum are rare, benign lesions typically discovered incidentally via routine medical exams.
Case Presentation: We present a distinctive case of a 49-year-old asymptomatic woman, illustrating a rare Müllerian cyst located in the posterior mediastinum with serous papillary cystadenoma-like features, a novel finding in the medical literature. Identified during a routine health screening in December 2020, a 20 mm cystic lesion adjacent to the T4-5 vertebral body was detected through chest CT and MRI, initially suggesting a neurogenic tumor.
Primary tumor characteristics and immunohistochemical profile of renal cell carcinoma in serous fluid cytology.
J Am Soc Cytopathol
November 2024
Cytopathology Center of Excellence, Department of Pathology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania.
Introduction: Renal cell carcinoma (RCC) involves serosal surfaces in 2%-3% of cases, and thus few papers describe serous fluid cytology (SFC) involvement by RCC. This diagnosis is challenging, given its rarity, nondescript cytomorphologic features and infrequent expression of widely used epithelial markers MOC31 and BerEP4. We describe our institutional experience with RCC in SFC specimens.
View Article and Find Full Text PDFBilateral Cystic Endosalpingiosis in Cervical Lymph Nodes Mimicking Metastatic Papillary Thyroid Carcinoma Morphologically on Cytology: A Case Report and Literature Review of Diagnostic Challenges.
Diagn Cytopathol
December 2024
Division of Pathology and Laboratory Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA.
The presence of cystic lymph nodes in the neck can present a challenging differential diagnosis, with considerations often including metastatic papillary thyroid carcinoma (PTC), cystic squamous cell carcinoma, and congenital cysts. The cytologic overlap between benign Müllerian inclusions and PTC features adds complexity, especially in unusual locations. A 45-year-old woman with a history of ovarian serous borderline tumor (SBT) and non-invasive Müllerian implants presented with cystic lymphadenopathy in the neck.
View Article and Find Full Text PDFUnusual pontine metastasis of endometrial papillary serous carcinoma: illustrative case.
J Neurosurg Case Lessons
December 2024
Departments of Neurosurgery, Tufts Medical Center, Boston, Massachusetts.
Background: Endometrial papillary serous carcinoma (EPSC) is a rare gynecological malignancy that often metastasizes before the presentation of symptoms or diagnosis of the primary disease. The most common locations of metastases for this malignancy are the lungs, liver, and bones. Metastases to the central nervous system (CNS) are rare.
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