Objective: In this meta-analysis, we aimed to review the diagnostic value of pentraxin 3 (PTX3) and ischemia-modified albumin (IMA) biomarkers in pediatric appendicitis. Method: Studies focusing on the value of PTX3 and IMA in the diagnosis of appendicitis were searched related to the PubMed database. Only randomized prospective clinical trials were included in this study. Results: After the screening, 6 articles based on the diagnostic value of IMA in appendicitis and 5 articles on the diagnostic value of PTX3 were reviewed. A total of 5 studies were included. The data of the 385 patients were reviewed. Sensitivity of PTX3 was 73-92% and specificity 88-100%, while IMA sensitivity was 89-96.7% and specificity was 26-99.7% in acute appendicitis. Conclusion: Although the results of the present study indicate that PTX3 and IMA can be shown as biomarkers in the differential diagnosis of acute abdomen, further study is needed to determine the cut-off value.

Gastric volvulus (GV) is a rare pathology in children, and therefore such clinical cases cause certain difficulties not only in diagnosis, but also in treatment. However, this problem is a clinical reality in pediatric surgery and seems to be underdiagnosed because of its rareness. These patients are threatened by the development of irreversible ischemic disorders in the affected organs (not only stomach), with a high degree of probability, they may need to perform an organ-removal operation at late admission. This article presents two clinical observations of pediatric gastric volvulus of various types, with different etiopathogenesis

Solitary Plasmacytoma is a rare disease characterized by a localized proliferation of neoplastic monoclonal plasma cell, without evidence of systemic disease. It can be subdivided into solitary bone plasmacytoma if the lesion originates in bone, or solitary extramedullary plasmacytoma if the lesion involves a soft tissue. A 25-year-old male patient is admitted to our clinic with hip pain. In the biopsy performed from the left iliac bone, atypical cells with rounded nuclei, granular chromatin and eccentrically located, extensive cytoplasm, and plasma cell morphology were observed. Because of CD38 positivity and plasma cell morphology, kappa lambda examination performed by CISH showed kappa positive lambda negative. Plasmocytomas are easily recognizable on tissue sections if the plasma cells are not poorly differentiated (plasmoblastic or anaplastic). In poorly differentiated lesions, immunohistochemical staining or in situ hybridization studies of kappa and lambda light chains can be performed.