Solid pseudopapillary tumor of the pancreas mistaken for gastrointestinal stromal tumor: A case report.

Solid pseudopapillary epithelial neoplasms of the pancreas are rare entities, first described in 1959 by Frantz. These tumors represent less than 2% of pancreatic cancers and mainly affect young women. They can reach a significant size and its radiological features can lead to diagnostic pitfalls, such as gastrointestinal stromal tumors, which are rare soft-tissue sarcomas that can appear anywhere along the gastrointestinal tract. Clinicians and radiologists need to be aware of the existing diagnostic pitfalls between these two entities, because of their possible similarities. We report here the case of a 33-year-old woman with a solid pseudopapillary epithelial neoplasms of the pancreas initially misdiagnosed as an exophytic gastric stromal tumor.

Abdominopelvic Mass Revealing Tuberculosis in a Young Woman.

Tuberculosis is an infectious disease caused by Mycobacterium tuberculosis and remains a health problem, especially in developing countries. Abdominal location represents 5 to 10% of all locations. The clinical symptoms are not very specific, and the discovery of an abdominal mass in a context of deterioration of general state may wrongly lead to the diagnosis of a tumor. Radiological explorations remain sensitive in the detection of abdominal masses but they cannot prejudge their etiology. Surgical exploration is sometimes the only recourse either for diagnostic purposes or complications, and the diagnosis can only be confirmed by bacteriological and histological examinations of the surgical specimen. We report the case of abdominopelvic mass and lymph nodes revealing tuberculosis.

Mixed neuroendocrine-non-neuroendocrine neoplasms of the right colon: a case report.

Mixed neuroendocrine-non neuroendocrine neoplasm (MiNENs) is a rare gastrointestinal neoplasm that has been redefined by the World Health Organization (WHO) in 2017 as the association of two types of components, neuroendocrine and non-neuroendocrine, each of them present in at least 30% of the tumour mass. Small case reports and case series have demonstrated the occurrence of this neoplasm in the colon. We here report the case of a 47-year-old man undergoing colonscopy for anemia. This showed impassable polypoidal tumor budding in the right colic flexure. Computerized tomography (CT) scan and magnetic resonance imaging (MRI) showed the presence of liver metastases. As the tumor was hemorrhagic, right hemicolectomy with lymph node dissection was performed. The histological examination showed MiNEN of the ascending colon. The patient received adjuvant chemotherapy.

[Adrenal gland hemangioma: about a case]. / Hémangiome surrénalien: à propos d'un cas.

Adrenal gland hemangioma is a very rare histologic entity belonging to the group of incidentalomas. It is often asymptomatic, unexpectedly detected during imaging examination and resulting from another abdominal affection. We here report a single case to further enrich international case series which are still very limited.

Taenia saginata: an unusual cause of post-appendectomy faecal fistula.

Post-appendectomy faecal fistula is a rare surgical complication, associated with significant morbidity. Taenia saginata infestation is one of the most common cestode infestation in the gastrointestinal tract. It makes many complications as obstruction, perforation, anastomotic leakage or appendicular stump dehiscence. The objective of our study is to report a very rare case of post appendectomy faecal fistula caused by taenia saginata infestation and was successfully treated conservatively.

Intranodal palisaded myofibroblastoma: a case report from an unusual site.

Intranodal palisaded myofibroblastoma is a rare lymph node benign tumor, of unknown pathogenesis. Although benign, this lesion is frequently confused with metastatic lesions, especially in atypical sites. We report a 39-year-old man with a history of testicular malignant mixed germ cell tumor, presented with abdominal painless mass. The computed tomography of the abdomen confirmed the presence of 180 × 140 mm2 mass in the retroperitoneum with lympadenopathy on the right measuring 20 x 15 mm. The patient underwent exploratory laparotomy, and a surgical exerese of the retroperitoneeum lymph node was made. Histological and immunohistochemical examination confirmed the diagnosis of intranodal palissaded myofibroblastoma. This entity has been previously described, only once, in retroperitoneal region. Despite to the rarity of this neoplasm, we discuss clinicopathologic features and differential diagnosis.

Isolated primary hydatid cyst of small intestinal mesentery: an exceptional location of hydatid disease.

Hydatid disease is an endemic problem in some areas of the world. Common sites include liver and lungs. We report an unusual case of isolated primary Hydatid cyst of small gut mesentery. Characteristics of this uncommon location, mechanism, diagnostic difficulties, and treatment are discussed.