A retroperitoneal dedifferentiated liposarcoma mimicking an ovarian tumor

A 74-year-old postmenopausal woman visited our gynecology clinic complaining of a palpable abdominal mass. Physical and radiological evaluation indicated that the mass exhibited features of a left ovarian neoplasm showing heterogeneous enhancement. Surgical resection was performed to confirm this suspicion. During surgery, a mass was observed only in the left ovary with no invasive growth, but adhesions to the surrounding peritoneum were seen. Given the patient's age, large mass size, and accompanying uterine myoma and right ovarian cyst, total abdominal hysterectomy with bilateral salpingo-oophorectomy was performed. The final pathologic diagnosis was dedifferentiated liposarcoma. The liposarcoma was suspected to originate from retroperitoneal adipose tissue rather than the ovary. Radiotherapy was planned if a gross lesion indicating recurrence followed 6 months later. This case required a considerable multi-disciplinary approach for diagnosis and treatment because of its ambiguous clinical and radiological findings.

Treatment of Phalangeal Bone Defect Using Autologous Stromal Vascular Fraction from Lipoaspirated Tissue

PURPOSE: Adipose-derived stromal cells (ASCs) are readily harvested from lipoaspirated tissue or subcutaneous adipose tissue fragments. The stromal vascular fraction (SVF) is a heterogeneous set of cell populations that surround and support adipose tissue, which includes the stromal cells, ASCs, that have the ability to differentiate into cells of several lineages and contains cells from the microvasculature. The mechanisms that drive the ASCs into the osteoblast lineage are still not clear, but the process has been more extensively studied in bone marrow stromal cells. The purpose of this study was to investigate the osteogenic capacity of adipose derived SVF cells and evaluate bone formation following implantation of SVF cells into the bone defect of human phalanx. METHODS: Case 1 a 43-year-old male was wounded while using a press machine. After first operation, segmental bone defects of the left 3rd and 4th middle phalanx occurred. At first we injected the SVF cells combined with demineralized bone matrix (DBM) to defected 4th middle phalangeal bone lesion. We used P (L/DL)LA [Poly (70L-lactide-co-30DL-lactide) Co Polymer P (L/DL)LA] as a scaffold. Next, we implanted the SVF cells combined with DBM to repair left 3rd middle phalangeal bone defect in sequence. Case 2 was a 25-year-old man with crushing hand injury. Three months after the previous surgery, we implanted the SVF cells combined with DBM to restore right 3rd middle phalangeal bone defect by syringe injection. Radiographic images were taken at follow-up hospital visits and evaluated radiographically by means of computerized analysis of digital images. RESULTS: The phalangeal bone defect was treated with autologous SVF cells isolated and applied in a single operative procedure in combination with DBM. The SVF cells were supported in place with mechanical fixation with a resorbable macroporous sheets acting as a soft tissue barrier. The radiographic appearance of the defect revealed a restoration to average bone density and stable position of pharyngeal bone. Densitometric evaluations for digital X-ray revealed improved bone densities in two cases with pharyngeal bone defects, that is, 65.2% for 4th finger of the case 1, 60.5% for 3rd finger of the case 1 and 60.1% for the case 2. CONCLUSION: This study demonstrated that adipose derived stromal vascular fraction cells have osteogenic potential in two clinical case studies. Thus, these reports show that cells from the SVF cells have potential in many areas of clinical cell therapy and regenerative medicine, albeit a lot of work is yet to be done.

Efficiency of the Boston Questionnaire in Carpal Tunnel Syndrome: Comparing Scores with Provocation Tests and Electrophysiological Studies

PURPOSE: We aimed to make a comparison of Boston Questionnaire scores with provocation tests and findings of electrophysiological studies in patients with a carpal tunnel syndrome. MATERIALS AND METHODS: The Boston Questionnaire was applied preoperatively for 248 hands in 142 patients with an idiopathic carpal tunnel syndrome. Boston Questionnaire scores were compared with provocation tests (Phalen's test, Tinel's sign, compression test and hand elevation test) and electrophysiological findings. RESULTS: Correlation study between the Boston Questionnaire scores and electrophysiological findings showed that the electrophysiological findings correlated more with symptom severity score (Spearman coefficient, 0.545; p<0.01) than with functional status score (Spearman coefficient, 0.307; p<0.01). Symptom severity score and functional status scores of the Boston Questionnaire correlated more linearly with the hand elevation test than with other provocation tests. CONCLUSION: This study demonstrates a high correlation of Boston Questionnaire scores with the electrophysiological findings and the hand elevation test.