Evaluation of the effectiveness and safety of oral vancomycin versus placebo in the prevention of recurrence of Clostridioides difficile infection in patients under systemic antibiotic therapy: a phase III, randomised, double-blind clinical trial.

INTRODUCTION: Clostridioides difficile infection (CDI) is the most prevalent cause of nosocomial bacterial diarrhoea and it is strongly associated with antibiotic use. The recurrence of CDI is a growing medical problem. Data from real-life studies and one open label randomised clinical trial (RCT) suggest that secondary prophylaxis with oral vancomycin (SPV) during subsequent courses of systemic antibiotics is a promising approach for reducing the risk of CDI recurrence. Our aim is to confirm the role of SPV through a double-blind RCT. METHODS AND ANALYSIS: We will perform a phase III, multicentre, placebo-controlled RCT (PREVAN trial) in a 2:1 ratio in favour of SPV (experimental treatment), in four tertiary care hospitals in Spain. Adult patients (≥18 years) with a previous history of CDI in the previous 180 days and with requirement for hospitalisation and systemic antibiotic therapy will be randomly allocated to receive either 125 mg of oral vancomycin or placebo every 6 hours for 10 days. Patients will be followed for 60 days after the end of treatment to verify a reduction in the rate of CDI recurrence in the experimental group. We assume a recurrence rate of 5% in the experimental group versus 25% in the placebo group. Accepting an alpha risk of 0.05 and a beta risk of 0.2 in a two-sided test, 104 subjects will be required in total (68 assigned to the SPV group and 34 to the placebo group). ETHICS AND DISSEMINATION: Ethical approval has been obtained from the Ethic Committee for Research with medicinal products of the University Hospital '12 de Octubre' (AC069/18) and from the Spanish Medicines and Healthcare Product Regulatory Agency (AEMPS, AC069/18), which is valid for all participating centres under existing Spanish legislation. The results will be presented at international meetings and will be made available to patients and funders. TRIAL REGISTRATION NUMBER: NCT05320068.

Thyroid-Bed Schwannoma Mimicking a Thyroid Neoplasm: A Challenging Diagnosis: Report of a Case and Literature Review.

BACKGROUND: Schwannomas, also called neurinomas, are rare benign tumors of the neural cells that can develop from the sheaths of nervous structures of several districts, although the most frequent sites are the cranial nerves (25%-45%). Rarely, cases show neck schwannomas in the thyroid parenchyma, while the cases of thyroid-bed schwannomas mimicking a thyroid-gland lesions are anecdotal. METHODS: We report the case of a 70-year-old man with a preoperative-imaging diagnosis of a thyroid neoplasm, confirmed as Thyr 4 by fine-needle cytology. RESULTS: During surgery, an extra-thyroidal lesion was discovered, determined to be a neck schwannoma through definitive pathology. A literature review of cases of thyroid-bed-lesion schwannomas misinterpreted as thyroid neoplasms was carried out. CONCLUSIONS: In the case of suspicious extra-thyroidal lesions, we advocate for a close routine cooperation between the cytologist, the radiologist, and the surgeon in the attempt to reach an accurate preoperative diagnosis.

Evaluation of LMR, NLR and PLR as predictors of malignancy in indeterminate thyroid nodules.

OBJECTIVE: Thyroid nodules with indeterminate cytology represent 20% of all thyroid nodules. Inflammation plays an important role in cancer. Lymphocyte-to-monocyte ratio (LMR), neutrophil-to-lymphocyte ratio (NLR) and platelet-to-lymphocyte ratio (PLR) are independent prognostic scores in numerous cancers, although no study has documented their role in cytology indeterminate nodules. The aim of this study is to evaluate the role of LMR, NLR and PLR values as predictors of malignancy in patients with cytology indeterminate nodules. METHODS: This retrospective study analysed data from 298 patients with indeterminate thyroid nodule. Anatomopathological and haematological data were analysed, dividing the population into two groups. LMR, NLR and PLR values were determined using ROC curve and data were analysed using independent samples t-test, test of proportions, Fisher's exact test and univariate and multivariate logistic regression. RESULTS: We found that a baseline LMR value ≥ 4.09 was indicative of benignity of indeterminate nodule. The probability of malignancy in patients with LMR < 4.09 was 26 times higher than patients with a LMR value ≥ 4.09. CONCLUSIONS: This study showed that only LMR has shown a concrete probability to find a thyroid cancer in patients with indeterminate nodules. Further studies are necessary to implement tailored treatment.

Clinical significance of neutrophil-to-lymphocyte ratio, lymphocyte-to-monocyte ratio, platelet-to-lymphocyte ratio and prognostic nutritional index in low-risk differentiated thyroid carcinoma.

OBJECTIVE: Inflammation and nutritional status play an important role in the prognosis of cancer. Lymphocyte-to monocyte ratio (LMR), neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR) and prognostic nutritional index (PNI) are independent prognostic scores in numerous cancers. However, any study showed their prognostic role in low-risk differentiated thyroid carcinoma (DTC). We aimed to clarify and identify the prognostic value of inflammation indices in low-risk DTC patients. METHODS: We analysed data from 116 patients, dividing the population into two groups, according to AJCC staging system (8th edition). The LMR, NLR, PLR and PNI cut-off value were determined using receiver operating characteristic (ROC) curve. Disease-free survival (DFS) was calculated with Kaplan-Meyer and Log-Rank tests and the risk of recurrence was calculated with univariate and multivariate Cox regression. Statistical significance was p < 0.05. RESULTS: We found a baseline NLR value ≥ 1.750 (75% sensitivity, 40.2% specificity) and a baseline LMR value of 3.83 (66.7% sensitivity, 48.9% specificity). Overall DFS was 74.995 ± 3.236 with a p value of 0.678. NLR showed a hazard ratio for recurrence with almost twice the risk of recurrence (Adjusted Hazard Ratio /HRA): 1.828, p-value = 0.019). CONCLUSIONS: NLR can be considered a prognostic score with twice the risk of recurrence in low-risk DTC patients with NLR < 1.750.

The Human Microbiota in Endocrinology: Implications for Pathophysiology, Treatment, and Prognosis in Thyroid Diseases.

The human microbiota is an integral component in the maintenance of health and of the immune system. Microbiome-wide association studies have found numerous diseases associated to dysbiosis. Studies are needed to move beyond correlations and begin to address causation. Autoimmune thyroid diseases (ATD) are one of the most common organ-specific autoimmune disorders with an increasing prevalence, higher than 5% worldwide. Most frequent manifestations of ATD are Hashimoto's thyroiditis and Graves' disease. The exact etiology of ATD remains unknown. Until now it is not clear whether bacterial infections can trigger ATD or modulate the efficacy of treatment and prognosis. The aim of our review is to characterize the microbiota and in ATD and to evaluate the impact of dysbiosis on treatment and prognosis. Moreover, variation of gut microbiome has been associated with thyroid cancer and benign nodules. Here we will characterize the microbioma in benign thyroid nodules, and papillary thyroid cancer to evaluate their implications in the pathophysiology and progression.

Transcutaneous laryngeal ultrasonography: a reliable, non-invasive and inexpensive preoperative method in the evaluation of vocal cords motility-a prospective multicentric analysis on a large series and a literature review.

Thyroidectomy is a largely performed intervention and its rate has sharply increased. The most feared postoperative complication is the recurrent laryngeal nerve paralysis, which is the most frequent cause of medicolegal litigations. Therefore, surgeons have introduced the preoperative evaluation of vocal cords function through laryngoscopy. Transcutaneous laryngeal ultrasonography has been proposed as a non-invasive indirect examination of vocal cords function. The aim of this study is to assess transcutaneous laryngeal ultrasonography reliability as an alternative painless and inexpensive method in the evaluation vocal folds function in patients amenable of thyroid surgery. We conducted a prospective multicentric study on patients affected by thyroid disease referred to the thyroid surgery divisions of two tertiary hospitals. All patients preoperatively underwent transcutaneous laryngeal ultrasonography and subsequently were evaluated via laryngoscopy by a blinded otolaryngologist. The ultrasonographical and laryngoscopical findings were then compared by an external blinded investigator. Our analysis on 396 patients showed an assessability rate of 96.46%, a sensitivity of 96.8%, a specificity of 95.6%, a positive predictive value of 65.2% and a negative predictive value of 99.7% in the identification of vocal cords alterations. A concordance between transcutaneous laryngeal ultrasonography and laryngoscopy of 95.7% was reported. In 14 patients (3.54%), the investigator reported a hard visualization of vocal cords through ultrasonography. Transcutaneous laryngeal ultrasonography is a valid non-invasive and painless alternative method in the assessment of vocal cords in a selected population; moreover, it could be useful in identifying patients addressable to second-level examination.

Medullary thyroid carcinoma with double negative calcitonin and CEA: a case report and update of literature review.

BACKGROUND: Medullary thyroid carcinoma is a malignant uncommon and aggressive tumour of the parafollicular C cells. In about 75% of cases it is sporadic while, in case of RET mutation, it is associated to multiple endocrine neoplasia type 2 (25% of cases). The biochemical features of medullary thyroid carcinoma include the production of calcitonin and carcinoembryogenic antigen. The above-mentioned features are useful in the diagnostic process as well as in the follow up and in the prognostication of the disease. Even if calcitonin elevation is strongly associated to MTC, it can also be found increased in many pathological different conditions as pregnancy, lactation, C-cells hyperplasia, autoimmune thyroiditis, end stage renal disease, lung and prostate cancer and several neuroendocrine tumours. Major medullary thyroid tumours are usually connected to high doses of circulating calcitonin, in fact non-secretory variants have hardly been described. CASE PRESENTATION: We herein report the case of a 59 years old male, who had undergone total thyroidectomy for multinodular goiter with negative preoperative calcitonin, showing medullary thyroid carcinoma at definitive pathology. To the best of our knowledge, this is the first case documenting a non-secretory medullary thyroid carcinoma, with double negative markers at the time of diagnosis and at the relapse. CONCLUSION: A Literature review underlining pathological hypothesis, differential diagnosis and alternative and innovative biomarkers to identify non-secretory medullary thyroid carcinoma was carried out.

Single center experience with laparoscopic adrenalectomy on a large clinical series.

BACKGROUND: Laparoscopic adrenalectomy is considered the gold standard technique for the treatment of benign small and medium size adrenal masses (<6 cm), due to low morbidity rate, short hospitalization and patient rapid recovery. The aim of our study is to analyse the feasibility and efficiency of this surgical approach in a broad spectrum of adrenal gland pathologies. METHODS: Pre-operative, intra-operative and post-operative data from 126 patients undergone laparoscopic adrenalectomy between January 2003 and December 2015 were retrospectively collected and reviewed. Diagnosis was obtained on the basis of clinical examination, laboratory values and imaging techniques. Doxazosin was preoperatively administered in case of pheochromocytoma while spironolactone and potassium were employed to treat Conn's disease. Laparoscopic adrenalectomies were all performed by the same surgeon (CG). First 30 procedures were considered as learning curve adrenalectomies. RESULTS: One hundred twenty-six patients were included in the study. Functioning tumors were diagnosed in 84 patients, 27 patients were affected by pheochromocytomas, 29 by Conn's disease, 28 by Cushing disease. Surgery mean operative time was 137.33 min (range 100-180) during the learning curve adrenalectomies and 96.5 min (range 75-110) in subsequent procedures. Mean blood loss was respectively 160.2 ml (range 60-280) and 90.5 ml (range 50-200) in the first 30 procedures and the subsequent ones. Only one conversion to open surgery occurred. No post-operative major complications were observed, while minor complications occurred in 8 patients (0,79%). In 83 out of 84 functioning neoplasms, laparoscopic adrenalectomy was effective in normalization of endocrine profile. CONCLUSIONS: Laparoscopic adrenalectomy is a safe and feasible procedure, even for functioning masses and pheochromocytomas. A multidisciplinary team including endocrinologists, endocrine surgeons and anaesthesiologists, is recommended in the management of adrenal pathology, and adrenal surgery should be performed in referral high volume centers. A thirty-procedures learning curve is recommended to improve surgical outcomes.

Bilateral benign multinodular goiter: What is the adequate surgical therapy? A review of literature.

BACKGROUND: Benign multinodular goiter (BMNG) is the most common endocrine disease requiring surgery. During the last few years a more aggressive approach has become the trend for bilateral BMNG treatment. METHOD: Randomized clinical trials of any size that compared bilateral subtotal resection, Dunhill procedure and total thyroidectomy for benign multinodular goiter, published between January 2000 and the end of March 2015, were reviewed. DISCUSSION: Total thyroidectomy can be considered the most reliable approach in preventing recurrence. The Dunhill procedure is related to a higher rate of recurrence, but rarely recurrences after Dunhill procedure lead to reoperation. Total thyroidectomy avoid completion thyroidectomy for incidental carcinoma and its related risks. Recurrent laryngeal nerve (RLN) palsy becomes less common as surgical experience increases. Transient and permanent hypoparathyroidism is strictly related to the extent of neck dissection. In the risk-cost analysis we must consider the type of patient candidated to surgery and the impact of the surgical protocol we apply. When thyroid surgery is taken in consideration, specific complication rates of different procedures in each hospital must be analyzed accordingly to patient-specific risk factors and local expertise. CONCLUSION: The Dunhill procedure seems to be a good compromise between radicality and prevention of complications, avoiding reoperation for recurrence or completion thyroidectomy for incidental thyroid carcinoma. More follow-up studies and prospective studies are necessary to better evaluate, definitively, whether to prefer total thyroidectomy or Dunhill procedure in case of benign goiter surgery.

[Acute non cholestatic hepatitis as the first manifestation of secondary syphilis]. / Hepatitis aguda no colestásica como primera manifestación de sífilis secundaria.

We present a 34 year old male who enter the Digestive Department of the University Hospital Severo Ochoa in Madrid, Spain with jaundice with a great elevation of transaminases in relationship with an infectious syndrome that was correctly diagnosed and treated with a very good outcome.

Natural history, diagnosis, treatment and outcome of thyroid microcarcinoma (TMC) A mono-institutional 5 year experience.

Thyroid microcarcinoma (TMC) it's a rare type of differentiated thyroid cancer, which according to the World Health Organization measures 10 mm or less. Accounting 7-16 % of all thyroid carcinomas, it occurs at any age, more frequently in men, with a female to male ratio of 1:3. More frequently histotype is the papillary subset, PTCM. Aim of this study is to retrospectively evaluate the patients diagnosed with TMC in terms of their clinical and histopathological features. In our institution we collected 23 cases of TMC sampled on 338 plongeant being operated. All the tumors, in our study, were found incidentally during the treatment of benign thyroid diseases. All the sample were analyzed and prepared using the same frozen section technique. Surgical pathology identified 11 papillary microcarcinomas, 10 follicular microcarinomas, 1 oncocytary microcarcinomas and in 1 patient was found only a focal tireocitary transformation. TMC's prognosis and treatment is still a subject of controversy We propose our approch consisting in total thyroidectomy (less than 5 gr residual thyroid tissue), being considered the low rate of post-operative complications, and recurrences: all patients are disease-free at the median follow-up of 78 months (range 96 to 30 months). We have considered either the less malignancy habit of this neoplasia either its well prognosis.

Hepatitis aguda no colestásica como primera manifestación de sífilis secundaria / Acute non cholestatic hepatitis as the first manifestation of secondary syphilis

Presentamos a continuación un paciente varón de 34 años ingresado en el Servicio Digestivo del Hospital Universitario Severo Ochoa en Madrid, por un cuadro de ictericia con gran elevación de transaminasas en relación con un cuadro infeccioso que se identificó y trató adecuadamente con la consecuente evolución favorable de dicha enfermedad...

We present a 34 year old male who enter the Digestive Department of the University Hospital Severo Ochoa in Madrid, Spain with jaundice with a great elevation of transaminases in relationship with an infectious syndrome that was correctly diagnosed and treated with a very good outcome...

Conservative management and parenchyma-sparing resections of pancreatic neuroendocrine tumors: Literature review.

BACKGROUND: Pancreatic neuroendocrine tumors (pNETs) are uncommon entities. pNETs are often small, slow growing, clinically silent neoplasms. However, they have an almost unpredictable biological behaviour with a not negligible malignant potential. Surgery still represents the treatment of choice, but the high morbidity associated to the enucleation or the formal pancreatectomy should be considered in the decision of the proper treatment. Management of these neoplasms is still debated, and indications for a conservative observational approach and for parenchyma sparing resections are not yet standardized. METHOD: We review the state of art on the indications for the conservative management of pNETs. Searches on MEDLINE database were performed to identify articles reporting prognostic systems, biochemical screening, observational management, medical treatment and surgical strategies for pNETs. DISCUSSION: Currently, an accurate 'wait-and-see' policy is recommended by the European Neuroendocrine Tumor Society (ENETS) only for non-functioning pNETs (NF-pNETs) <2 cm. A biochemical screening, based on sampling of serum levels of pancreatic polypeptide (PP) and chromogranin A, can address to early conservative surgery for MEN-1 associated NF-pNETs <2 cm to prevent their malignant transformation. The subtotal (80%) distal pancreatectomy first proposed by Thompson, often with the enucleation of possible pancreatic head tumors, still represents a good compromise between oncological radicality and prevention of pancreatic endocrine/exocrine insufficiency caused by standard radical resections for the treatment of inherited syndromes associated with NF-pNETs >2 cm and symptomatic F-pNETs of any size. CONCLUSION: More studies are needed to further clarify and predict the biologic behaviour of pNETs and increase the indications for conservative observational management and parenchyma sparing pancreas resections.

Is primary surgery for locally advanced/metastatic breast cancer a better choice than chemotherapic treatment?

INTRODUCTION: A part of the literature supports the undoubtful advantage of neoadjuvant chemotherapy on the overall survival and for the possibility of surgical conservative treatment in locally advanced tumours after downstaging. Other authors report that primitive tumour's surgical removal at first, improves survival in cases with locally advanced /metastatic disease. The advantages were improvement of patient's health status, removal of a reservoir of neoplastic cell neoangiogenic cytokines and growth factors,and cytoreduction. MATERIALS AND METHODS: Aim of this study is to evaluate the effectiveness on the survival of a primary surgical treatment of the locally advanced tumours comparing two homogeneous groups. In the first group (GROUP 1) 40 patients were enrolled with stage III A, III B,IV tumours and were treated with primary surgery. The second group (GROUP 2) was made up of 40 patients with similar stage treated with neoadjuvant chemotherapy. The surgical treatment had the intention to remove the entire primary tumour. RESULTS: After a median follow up of 48,2 months,22,5 % of GROUP 1 died and 30 % of GROUP 2. The average survival of patients in GROUP 1 was 27,1 months while in GROUP 2 there was an average survival of 16,8 months. CONCLUSION: In conclusion surgical treatment plays a key role in the treatment of advanced/metastatic disease and is an independent factor associated with survival.

Leiomyosarcoma of the thyroid gland: A case report and literature review.

Primary smooth muscle tumors of the thyroid gland are extremely rare neoplasms. Due to their rarity, clinical case studies concerning management are lacking. According to a literature review, only 19 cases of primary thyroid leiomyosarcomas (TLs) have been reported. In the majority of patients, the prognosis is poor since adjuvant radiochemotherapy is ineffective on local recurrence and on long-term survival. In this study, we report the case of a 77-year-old male affected by a rapidly enlarging mass of the anterior neck, associated with bilateral lung metastases, and increasing dysphagia and dyspnea during the previous 6 months. A Tir4 neoplasm fine needle cytological diagnosis of the right thyroid lobe was reached and the patient underwent total thyroidectomy (TT). Definitive histological examination identified a TL. The patient succumbed 40 days later due to respiratory distress. A literature review was performed and TL differential diagnoses, management, including alternative treatment strategies, and adjuvant therapy were analyzed. TL is an aggressive rare mesenchymal malignant tumor. Although an improved multimodal approach is often necessary, TT and neck dissection represent the treatment of choice and are often the only possible therapy. Adjuvant radiochemotherapy appears to be ineffective and a high mortality rate is observed. TL remains a fatal tumor, and innovative and more effective therapeutic strategies to improve management and outcomes are required.

The role of surgery in the current management of differentiated thyroid cancer.

In the last decades, a surprising increased incidence of differentiated thyroid cancer (DTC), along with a precocious diagnosis of "small" tumors and microcarcinomas have been observed. In these cases, better oncological outcomes are expected, and a "tailored" and "less aggressive" multimodal therapeutic protocol should be considered, avoiding an unfavorable even if minimal morbidity following an "overtreatment." In order to better define the most suitable surgical approach, its benefits and risks, we discuss the role of surgery in the current management of DTCs in the light of data appeared in the literature. Even if lymph node metastases are commonly observed, and in up to 90 % of DTC cases micrometastases are reported, the impact of lymphatic involvement on long-term survival is still argument of intensive research, and indications and extension of lymph node dissection (LD) are still under debate. In particular, endocrine and neck surgeons are still divided between proponents and opponents of routine central LD (RCLD). Considering the available evidence, there is agreement about total thyroidectomy, therapeutic LD in clinically node-positive DTC patients, and RCLD in "high risk" cases. Nevertheless, indications to the best surgical treatment of clinically node-negative "low risk" patients are still subject of research. Considering on the one hand, the recent trend toward routine central lymphadenectomy, avoiding radioactive treatment, and on the other hand, the satisfactory results obtained reserving prophylactic LD to "high risk" patients, we think that further prospective randomized trials are needed to evaluate the best choice between the different surgical approaches.

Intestinal occlusion caused by endometriosis of the sigmoid colon.

Endometriosis (E) is an estrogen-dependent inflammatory disorder that is observed in approximately 10% of women in childbearing age, and is the most common benign gynecological disorder requiring hospitalization. In 5% of cases, there is an involvement of the gastrointestinal tract, for the most part of the sigmoid colon and rectum (~ 90%). However intestinal obstruction due to severe stenosis of the sigmoid colon, as in the case described by the authors, is rare. The differential diagnosis should include cancer, inflammatory diseases and actinic colitis which has a similar clinical picture to E. Surgical treatment - resection and anastomosis or conservative procedures - provides better results especially when a multidisciplinary approach is used (colorectal surgeon, gynecologist, urologist). The authors report a case of obstruction of the sigmoid colon due to endometriosis and analyze the pathophysiology, diagnosis and surgical management of this disorder.

Laparoscopic treatment of chronic slow transit constipation. Report of three cases and review of literature.

INTRODUCTION: The Authors present their experience with laparoscopic total or subtotal colectomy (TC or SC) in three patients operated for intractable chronic slow transit constipation (STC), together with a review of literature. MATERIAL AND METHODS: From July 2005 to July 2009 three young patients affected by STC, after meticulous preoperative instrumental work-up and after failure of medical treatment, were submitted to laparoscopic TC and ideo rectal anastomosis (IRA) in two cases and to laparo assisted SC followed by Ceco Rectal Anastomosis (CRA) in one case. Number of daily bowel motions, urgency soiling, incontinence, abdominal pain, bloating with special regard to patient's quality of life, were analyzed. RESULTS: All the interventions were completed via laparoscopic approach. No postoperative morbidity or mortality were observed. After twelve months, the patients referred two-three daily evacuation of soft stool, with a good continence and disappearance of abdominal pain and other relatives symptoms. They reported excellent satisfaction with the surgical results and a significant improvement of their quality of life. DISCUSSION: TC with IRA and CRA after SC represent the most effective and widely used surgical operations in the treatment of STC, in well selected patients, after failure of conservative treatment. According to Literature data, and in our experience, no significant differences in terms of postoperative morbidity or mortality neither in quality of life were observed between the two operations. It is well demonstrated the feasibility of the laparoscopic approach in treatment of colorectal pathologies with typically advantages of less invasive surgery, respect of parietal integrity, less postoperative pain and ileus, fewer postoperative adhesions, a reduced hospitalisation and finally a better cosmesis. CONCLUSIONS: Laparoscopic TC and IRA and CRA after laparo assisted SC represent efficacious operations in the treatment of STC offering a good postoperative quality of life and reduced morbidity compared to open surgery.

[Chilaidity syndrome. Case report]. / Sindrome di chilaiditi. Caso clinico.

Chilaidity syndrome is a mal position by bowel mal rotation o malfissation. It is more common in right side expecially in obese people. If asyimptomatic, the syndrome is an occasional comparison by radiology, surgical exploration by laparoscopy or autopsy, otherwise, if symptomatic, there are obstructive symptoms,abdominal pain, nausea, vomiting, abdominal distension, flatulence, breath, constipation and anorexia. Diagnosis is radiological. We present a rare case of this syndrome in a man with serious obstructive symptoms.

Hemoperitoneum caused by the rupture of a giant ovarian teratoma in a 9-year-old female. Case report and literature review.

The Authors report the case of a 9-year-old girl suffering from acute abdominal pain, combined with mild anaemia (Hb 10.9 g/dL), leukocytosis (24.3 x 10(3) cells/dL), and a large palpable mass in the upper left quadrant. The child underwent an appendectomy 20 days before the admission to our Department. The operation performed in urgency, as well as the removal of a bulky mass situated in the left flank and the right ovary whence it arose, made it clear that abdominal signs and symptoms were caused by the twisting and rupturing of a neoformation, that would hence cause an impressive hemoperitoneum. The histopathologic examination showed a three-germ layer mature mixed teratoma. Clinical, radiologic and biochemical test (alpha-FP, beta-hcG) performed in a postoperative 2 months follow-up revealed no residual disease.