Vaikų dermatofibrosarkoma: klinikinis atvejis ir literatūros apžvalga

Dermatofibrosarcoma protuberans is a very rare malignant neoplasm in children. It is reported that the classic form of dermatofibrosarcoma has a very limited metastatic potential, while a fibrosarcomous transformation of dermatofibrosarcoma protuberans has a much higher potential. We present a case of a 17-year-old boy with a huge ulcerated mass (17 x 15 cm) on his right thigh. At operation, the pathological diagnosis was dermatofibrosarcoma protuberans with a fibrosarcomous component. All lesions were removed by surgical excision with a margin of 1.5 to 3 cm. After one year, there is no evidence of tumor recurrence.Dermatofibrosarcoma protuberans yra itin retas vaikų piktybinis navikas. Nurodoma, kad klasikinė dermatofibrosarkomos forma labai retai metastazuoja, o fibrosarkominei jos transformacijai dažnai būdingos metastazės. Mes aprašome išopėjusios dešiniosios šlaunies dermatofibrosarkomos atvejį septyniolikos metų berniukui. Navikas buvo radikaliai pašalintas. Po vienerių metų atkryčio nerasta

Microwave ablation as a minimally invasive surgical option for the posterior spinal elements osteoid osteoma: a case report

We report a 24-year-old male who was presented with constant intensive low back pain on the right side for 3 years. Large doses of NSAIDs were ineffective and resulted in gastric ulcer. Magnetic resonance tomography and computed tomography imaging revealed osteoid osteoma of L3 pars interarticularis and a needle biopsy confirmed it. An innovative approach for spinal osteoid osteoma was chosen after many considerations. The patient underwent microwave ablation of the lesion in the spine

A case report of rare sacral solitary fibrous tumor

Huge primary epidural solitary fibrous tumors in the sacrum are a rare clinical entity. The purpose of this article is to present our experience in treating such large and complex neoplasms in a 31-year-old woman. The patient complained of constant nocturnal bilateral hip and lower back pain and unilateral radicular symptoms (numbness, paresthesias) in the left S1/S2 dermatomal distribution. Diagnostic imaging, biopsy, preoperative endovascular embolization, two-staged tumor resection, and lumbosacroiliac fusion were performed. The treatment resolved the patient's neurological symptoms and resulted in overall good postoperative functionality. The patient has been in remission for more than five years despite her refusal of adjuvant radiotherapy

Oral lichen planus: a 4-year clinical follow-up study

Background/aim: This study aimed to examine oral lichen planus (OLP) cases histopathologically and cytologically, describe different clinical aspects of OLP manifestations, and associate different OLP clinical forms with self-reported oral health and with local and systemic risk factors. Materials and methods: All patients with a referral diagnosis of OLP received biopsies. The histological evaluation assessed infiltration with lymphocytes, epithelial hyperplasia, and hyperkeratosis. Histology was used to validate the OLP diagnosis and to evaluate the malignant transformation of OLP lesions. Clinical manifestations of OLP and potential local oral environment-related risks were clinically assessed. Systemic risks were evaluated by a structured questionnaire. Results: A total of 133 patients with a histologically confirmed OLP diagnosis were followed. There were more females (N = 109) than males (N = 24) and the majority of patients were older than 50 years. The reticular form (45.1%) was the most prevalent clinical form followed by the erosive-ulcerative form (33.8%). The histological characteristics were most pronounced in the erosive-ulcerative form. Of the OLP cases, 2.3% had a malignant transformation. Conclusion: Reticular and erosive-ulcerative were the most prevalent OLP forms. There were more female than male OLP patients. Except for medication use, there were no statistically significant differences among different clinical OLP forms in either local or systemic risk factor distributions

Primary Ewing's sarcoma in a small intestine - a case report and review of the literature

Background Ewing's sarcoma usually presents in paediatric patients with its primary location being bone tissue. Nevertheless, we present such an adult case which arises from the small intestine. We registered thirty one cases of such origin published so far excluding ours. Case presentation We report a case of 30 year old female who was admitted due to the persistent anaemia. Whole body computed tomography scan revealed abdominal mass in her left upper abdominal compartment. Surgery on the mass originating from jejunum was performed, although due to extremely complicated postoperative period and rapid dissemination no additional therapy had been performed. The tumour was positive for CD99, ERG, CD56, Synaptophysin, PanCK, Cam5.2. Conclusion Extraosseus Ewing's sarcoma is extremely rare entity, with poor prognosis

Extralobar pulmonary sequestration

Prevalence of pulmonary sequestration accounts for up to 6.4% of all congenital pulmonary malformations. We report on a 40-year-old woman who underwent excision of an aberrant solid retroperitoneal mass in the left subdiaphragmatic area. The mass was identified to be an extralobar pulmonary sequestration. The diagnosis could be made without surgery by percutaneous tissue biopsy and imaging. We encourage keeping in mind pulmonary sequestration anomaly presenting as an aberrant retroperitoneal mass. The aim of this case report is to increase awareness about the condition and review the criteria for its definitive diagnosis and treatment

Histologic lymph nodes regression after preoperative chemotherapy as prognostic factor in non-metastatic advanced gastric adenocarcinoma

Background: The study aims to evaluate the lymph node (LN) response to preoperative chemotherapy and its impact on long-term outcomes in advanced gastric cancer (AGC). Methods: Histological specimens retrieved at gastrectomy from patients who received preoperative chemotherapy were evaluated. LN regression was graded by the adapted tumor regression grading system proposed by Becker. Patients were classified as node-negative (lnNEG) in the case of all negative LN without evidence of previous tumor involvement. Patients with LN metastasis were classified as nodal responders (lnR) in case of a regression score 1a-2 was detected in the LN. Nodal non-responders (lnNR) had a regression score of 3 in all of the metastatic nodes. Survival was compared using Kaplan-Meier and Cox regression analysis. Results: Among 87 patients included in the final analysis 29.9 % were lnNEG, 21.8 % were lnR and 48.3 % were lnNR. Kaplan-Meier curves showed a survival benefit for lnR over lnNR (p=0.03), while the survival of lnR and lnNEG patients was similar. Cox regression confirmed nodal response to be associated with decreased odds for death in univariate (HR: 0.33; 95 % CI 0.11-0.96, p=0.04) and multivariable (HR 0.37; 95 CI% 0.14-0.99, p=0.04) analysis. Conclusions: Histologic regression of LN metastasis after preoperative chemotherapy predicts the increased survival of patients with non-metastatic resectable AGC