Gastrointestinal stromal tumors (GISTs) are uncommon mesenchymal neoplasms primarily found in the gastrointestinal (GI) tract. While they typically occur in older adults, GISTs can manifest in individuals of any age. This publication paper presents a case study of a rare occurrence: a spontaneously ruptured duodenal GIST in a young female. Through an in-depth review of the literature, we aim to provide insights into the clinical presentation, diagnostic challenges, management strategies, and long-term outcomes associated with this unique clinical scenario.

Despite the advancement in therapy, breast cancer still remains the most common malignancy in women globally due in part to its heterogeneity. Triple-negative breast cancer (TNBC) represents up to 20% of all breast cancer variants, an aggressive disease with poorer outcomes compared to other breast cancer subtypes. No targeted therapies are currently approved for TNBC, and newer treatment approaches are seriously needed. Androgen receptor (AR), another hormonal receptor, is often expressed in breast cancer, and its role depends on the relative levels of circulating estrogens and androgens. This study aimed to assess the expression of AR in breast cancer in a tertiary hospital in Ghana.

The fifth edition of the WHO classification of tumors of the central nervous system (WHO CNS5) was published in 2021 which is the sixth version of the international standard for the diagnostics of CNS tumors. Regular updates of the consortium to inform molecular and practical approaches to CNS tumor taxonomy (cIMPACT-NOW) shaped the WHO CNS5 which continues the trend of incorporating the molecular characteristics of tumors into the histological and immunohistochemical findings. The various updates can be classified into general changes across all tumors and specific changes within the tumor groups. This mini-review highlights the general changes and the major changes in adult diffuse gliomas.

A tailgut cyst is a rare benign polycystic congenital lesion in presacral or retrorectal space, when there is failure of involution of tailgut. Clinical presentation may be with or without symptoms of different types related to obstruction, infection, or rarely malignancy. Symptoms may be misleading and atypical, so understanding of characteristics of tailgut cysts is important for precise and early diagnosis to be made for proper treatment and to avoid complications and malignant transformation. Magnetic resonance imaging pelvis was used as diagnostic imaging investigation, but the final confirmation was only done by histopathology. Definitive treatment is surgery, though various surgical approaches are described, surgery is tailored which will suit the individual patient's anatomy and suspected diagnosis of mass. This case review used PubMed and Web of Science databases to search for the studies. We found around 176 articles and selected 77 articles in our survey, with 8 reviews, 31 case reports, and 31 case reports and reviews.

Colonoscopy with histopathological analysis of mucosal biopsy samples remains the gold standard procedure for diagnosing lower gastrointestinal disorders. This study aimed to determine the pattern of histopathological findings of mucosal biopsies obtained at colonoscopy over a 7-year period and to correlate the histological findings with the clinical profile of the patients.

A major indication for referrals for bone scans (BS) to establish or exclude skeletal metastases. Few patients are referred with clinically indeterminate diagnosis or cancer of unknown primary (CUP), to search for bony metastases or primary tumor.

Invadosome is an umbrella term used to describe a family of cellular structures including podosomes and invadopodia. They serve as contact zones between the cell plasma membrane and extracellular matrix, contributing to matrix remodeling by locally enriched proteolytic enzymes. Invadosomes, which are actin-dependent, are implicated in cellular processes promoting adhesion, migration, and invasion. Invadosomes, which exist in various cell types, play crucial roles in physiological phenomena such as vascularization and bone resorption. Invadosomes are also implicated in pathological processes such as matrix tissue remodeling during metastatic tumor cell invasion. This review summarizes basic information and recent advances about mechanisms underlying podosome and invadopodia formation, their organization and function.

Multiple myeloma is a malignant plasma cell proliferation located in the bone marrow and bones. It can secondarily manifest with extraosseous involvement, but the gastro-intestinal tract locations are rare. We report 3 cases of gastric and colonic localizations of myeloma in two males and one female, aged 66, 71 and 77years. Multiple myeloma had been diagnosed 1 to 7years before. Digestive symptoms were epigastric pain, rectal bleeding or an obstructive syndrome. Endoscopy revealed ulcerated and budding tumors in the stomach, and nodular pseudo-polypoid tumor formations or an ulcerated erythematous area in the colon. Histopathological examination of the biopsies showed a diffuse tumor cell proliferation in the lamina propria composed of cells with a plasmacytoid or plasmablastic appearance, expressing plasma cell markers such as CD138 on immunohistochemistry. The 3 patients died in the weeks following the diagnosis. The prognosis of digestive localizations of multiple myeloma remains very poor despite new therapies. In the presence of any digestive symptoms in these patients with multiple myeloma, more systematic endoscopy may allow an earlier diagnosis and the implementation of more effective therapies.

Benign tumors of the liver and biliary tract are rare entities, and some of them require surgical management to prevent their malignant transformation. Tumors from the biliary tract with malignant potential are treated either by hepatic resection, for mucinous cystic neoplasm and ciliated hepatic foregut cysts, or by biliary resections, for biliary papillary neoplasm and type I and IV choledochal cysts. The pathologies requiring prophylactic cholecystectomy are polyps larger than 10 mm, porcelain gallbladder and pancreaticobiliary maljunction. Finally, hepatocellular adenoma over 5cm, occurring in male patients, or exon 3 mutated beta-catenin, should lead to prophylactic resection by hepatic segmentectomy. This article describes these different pathologies and their management.

Up to 30% patients newly diagnosed with advanced non-small cell lung cancer (NSCLC) present with brain metastases. In the absence of oncogenic addiction, first-line immunotherapy, alone or in combination with chemotherapy, is the current standard of care. This review aims to synthesize the available data regarding the efficacy of immunotherapy in these patients, and to discuss the possibility of its being coordinated with local treatments such as radiotherapy.

Urine cytology is a long-used technique for the detection of high grade neoplastic urothelial lesions. Since 2016, «The Paris System» classification has revolutionized this field by introducing a standardized terminology widely adopted by cytopathologists and urologists. In this article, we explain this classification and discuss its impact on the clinical management of patients with urothelial lesions, as well as its role in the secondary prevention of these lesions.