SURVIVIN POSITIVITY AND PROGNOSTIC FACTORS IN PAPILLARY THYROID CARCINOMAS.

Context: Papillary thyroid carcinoma(PTC)s are the indolent progressive tumours. Survivin is a unique bifunctional protein with cell cycle regulation and apoptosis inhibition. The expression of this protein has been shown to be increased in thyroid tumours correlated with aggressive behavior from well differentiated to anaplastic. Objective: In this study, we aimed to investigate the relationship between immunohistochemically survivin expression and tumour-associated prognostic factors in papillary thyroid carcinomas. Design: In patients with thyroidectomy, we compared the clinicopathological findings and immunohistochemical positivity for survivin. Subjects and Methods: In 109 patients, sex, age, tumour size, histological tumour variant, tumour focality, tumour border pattern, tumour peripheral/intratumoural lymphocytic and stromal response, intraglandular spread, extrathyroideal spread, lymph node metastases, lymphocytic tiroiditis and relationships of these findings with survivin positivity were investigated. Results: When we indicated the tumour size and compared it with survivin expression, tumour size correlates with, survivin expression (p = 0.016). Survivin expression was correlated statistically significant with lymphovascular invasion, without stromal response and with intraglandular extension respectively (p<0.001, p = 0.043, p<0.001). No significant correlation was found between other clinicopathological parameters and survival. Conclusion: Few studies have investigated the relationship of survivin expression with prognosis in thyroid papillary carcinomas and showed that survivin was a poor prognostic marker. If its expression is detected in preoperative cytology smears, it may affects the surgical treatment strategy. When it is detected in the tissue, postoperative radioactive iodine treatment plan may be modified and the need for more aggressive follow-up may be considered.

Secondary amyloidosis causing nephrotic syndrome in a patient with non-Hodgkin's lymphoma: quite a rare diagnosis.

Secondary amyloidosis is usually a complication of chronic inflammation. Amyloidosis cases during the course of non-Hodgkin's lymphoma (NHL) are usually of AL-type, only one NHL patient with secondary amyloidosis has been reported. Our 79-year-old male patient visited us with multiple lymphadenopathies, and he was diagnosed with nodal marginal zone B-cell lymphoma. After four cycles of combined chemotherapy; his urea, creatinine levels started to increase and he developed nephrotic-range proteinuria. His rectal biopsy demonstrated amyloid deposition in submucosal vessel walls. The patient has been under hemodialysis for 10 months and his lymphoma is still in partial remission. We presented this case because it is the second NHL patient who developed secondary amyloidosis during his disease course.

Small cell carcinoma of the rectum; report of a case.

Primary small cell undifferentiated carcinoma of the colon and rectum is a relatively rare tumour with an overall incidence of less than 1% among all colorectal cancers. These tumours are highly aggressive as distant metastases occur even when the primary tumour is limited to the submucosa or mucosa. Despite the mean survival being around 6 months, long-term survival may be achieved in patients with localized disease treated with curative resection and adjuvant therapy. We report on a patient with Dukes' C small cell carcinoma (SCC) of the rectum who underwent surgery followed by pelvic irradiation and chemotherapy and achieved long-term survival.

Primary angiosarcoma of the spleen: in vivo and in vitro MRI findings.

Primary splenic angiosarcomas are extremely rare tumors with very poor prognosis. These tumors, highly aggressive and lethal, present with widespread metastatic disease or splenic ruptures. The possibility to lengthen the survival by splenectomy before the development of splenic rupture makes an early radiological diagnosis a necessity. Multimodality imaging findings of a patient with splenic angiosarcoma is presented. In vivo and in vitro magnetic resonance imaging (MRI) features of the spleen are compared to macro- and micropathological findings.

Fibrous dysplasia of the spine with sarcomatous transformation: a case report and review of the literature.

A fibrosarcoma is reported in the spine of a 53-year-old man with polyostotic fibrous dysplasia. There was no history of endocrine disturbances and no previous irradiation. Malignant transformation in fibrous dysplasia is rare. A review of the literature reveals 101 cases of malignant degeneration occurring in fibrous dysplasia. We believe that this is the first report of sarcomatous change arising in an area of fibrous dysplasia in the spine.

Spinal tuberculosis with circumferential involvement of two noncontiguous isolated vertebral levels: case report.

We present a case of a 16-year-old boy with an atypical form of spinal tuberculosis, which circumferentially involved two noncontiguous vertebral levels without destruction of the adjacent vertebral bodies and intervertebral discs. The lesions caused paraplegia and loss of sphincter control, and they were confined to a single vertebra at each site; the findings more closely mimicked spinal malignancies. There was no evidence of pulmonary or other extrapulmonary tuberculous disease. The patient was successfully treated both surgically and medically using posterior decompression and a stabilizing procedure in combination with postoperative antituberculous therapy. Magnetic resonance imaging played a major role in determining the extent of the disease and the type of surgical procedure and in monitoring adequate medical treatment.

Giant calcified subdural empyemas.

We report two cases of chronic calcified and ossified subdural empyema diagnosed during surgery and operated on successfully using an extraordinary large osteoplastic craniotomy. After surveying the literature, we must emphasize the unusual occurrence of the chronic subdural empyemas presenting with calcification-ossification and large size as observed in both of our cases.

An endodermal sinus tumor of the head and neck region.

A 2-year-old patient with a recurrent endodermal sinus tumor of the nasopharynx is presented. After the first attempt to surgically excise the tumor it recurred, causing upper airway obstruction within 2 months. Combined treatment with surgery, radiotherapy and chemotherapy resulted in a disease-free survival of four years.

Primary carcinoid tumor of the ovary. A case report.

The clinicopathologic features of a patient with primary carcinoid tumor of the ovary who presented with the signs of cardiac failure are described. The patient underwent total abdominal hysterectomy + bilateral salpingo-oophorectomy + omentectomy + bilateral pelvic lymphadenectomy + appendectomy; and she is alive with no evidence of recurrent disease one year after surgery.

Expansion of fascial flaps: histopathologic changes and clinical benefits.

In order to meet the requirements of large defects created by sacral and trochanteric pressure ulcers, tensor fasciae latae and lumbosacral fasciocutaneous flaps were expanded with a silicone expander in six patients (10 flaps). In 8 of the flaps the location of pressure ulcers was trochanteric, and in 2 it was sacral. In each case the period of expansion was 4 weeks. Histopathologic examination after expansion showed an increase in the vascularity and overall thickness of fascia in both types of flaps. After 4 weeks of expansion, the perifascial areolar tissue was replaced with thick granulation tissue in the tensor fasciae latae flaps. This markedly vascular layer of granulation tissue interposed between the fasciae and the subcutaneous tissue augmented the internal matrix of the flap, thereby lowering the potential for shearing during flap elevation. Conceivably, owing to the absence of an areolar tissue layer in the lumbosacral fasciocutaneous flaps, no layer of granulation tissue was observed. The average thickness of the fibrous capsule formed around the expanders was 573.2 microns, which was composed of three structurally different zones. Prior tissue expansion obviously assisted primary closure of the flap donor site. In addition, it seems that the tissue-expansion process rendered the distal portion of fascial flaps more robust because of increased vascularity. It is therefore proposed that preparatory tissue expansion of fascial flaps has several advantages. The obvious benefits include the ability to close larger defects while closing the donor site primarily. As a result of this study, the additional benefits may include a reduction in the mechanical shear potential of these flaps and an improvement in their vascularity.

Prognosticators of second-look laparotomy findings in patients with epithelial ovarian cancer.

Prognosticators of outcome at second-look laparotomy (SLL) were evaluated in 49 patients with epithelial ovarian carcinoma undergoing SLL. Residual tumor volume was found to be the most significant prognosticator of outcome, with initial tumor stage being of secondary importance. Grade of tumor played no role in outcome at SLL. The results of the study led us to the conclusion that the second-look procedure may be safely omitted in stage I patients. The importance of optimal cytoreduction during primary surgery was stressed.