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2.  Vesicovaginal Fistula: Diagnosis and Management 
The Indian Journal of Surgery  2012;76(2):131-136.
Vesicovaginal fistula (VVF) is still a major cause for concern in many developing countries. It represents a significant morbidity in female urology. Continual wetness, odor, and discomfort cause serious social problems. The diagnosis of the condition has traditionally been based on clinical methods and dye testing. A successful repair of such fistulas requires an accurate diagnostic evaluation and timely repair using procedures that exploit basic surgical principles and the application of interposition flaps. The method of closure depends on the surgeon’s training and experience. The main complication of VVF surgery is recurrent fistula formation.
PMCID: PMC4039689  PMID: 24891778
VVF; Complications; Diagnosis; Surgical principles
3.  Role of Deregulated microRNAs in Breast Cancer Progression Using FFPE Tissue 
PLoS ONE  2013;8(1):e54213.
MicroRNAs (miRNAs) contribute to cancer initiation and progression by silencing the expression of their target genes, causing either mRNA molecule degradation or translational inhibition. Intraductal epithelial proliferations of the breast are histologically and clinically classified into normal, atypical ductal hyperplasia (ADH), ductal carcinoma in situ (DCIS) and invasive ductal carcinoma (IDC). To better understand the progression of ductal breast cancer development, we attempt to identify deregulated miRNAs in this process using Formalin-Fixed, Paraffin-Embedded (FFPE) tissues from breast cancer patients. Following tissue microdissection, we obtained 8 normal, 4 ADH, 6 DCIS and 7 IDC samples, which were subject to RNA isolation and miRNA expression profiling analysis. We found that miR-21, miR-200b/c, miR-141, and miR-183 were consistently up-regulated in ADH, DCIS and IDC compared to normal, while miR-557 was uniquely down-regulated in DCIS. Interestingly, the most significant miRNA deregulations occurred during the transition from normal to ADH. However, the data did not reveal a step-wise miRNA alteration among discrete steps along tumor progression, which is in accordance with previous reports of mRNA profiling of different stages of breast cancer. Furthermore, the expression of MSH2 and SMAD7, two important molecules involving TGF-β pathway, was restored following miR-21 knockdown in both MCF-7 and Hs578T breast cancer cells. In this study, we have not only identified a number of potential candidate miRNAs for breast cancer, but also found that deregulation of miRNA expression during breast tumorigenesis might be an early event since it occurred significantly during normal to ADH transition. Consequently, we have demonstrated the feasibility of miRNA expression profiling analysis using archived FFPE tissues, typically with rich clinical information, as a means of miRNA biomarker discovery.
PMCID: PMC3553092  PMID: 23372687
4.  Intracystic Papillary Carcinoma of the Breast in Males. In Search of the Optimal Treatment for this Rare Disease 
Breast Care  2011;6(5):399-403.
Intracystic papillary carcinoma (IPC) of the breast in men is an extremely infrequent disease, and it appears to have a good prognosis. Because of this, histological findings are of great importance in the decision-making process regarding treatment. Clinical examination, radiological and histological assessments are required for early detection. Adequate surgical excision with negative margins is mandatory. However, the role of sentinel node biopsy has not been evaluated in male IPC. It appears that sentinel node biopsy may be an excellent alternative to radical axillary dissection in patients with IPC and associated ductal carcinoma in situ or invasive carcinoma. Nevertheless, due to the rarity of IPC and its confusing histopathological classification and staging, there are still no clear guidelines as far as IPC treatment is concerned.
PMCID: PMC3357144  PMID: 22619652
Breast cancer; Man; IPC; DCIS; Papilloma
5.  Cell cyclins: triggering elements of cancer or not? 
Cyclins are indispensable elements of the cell cycle and derangement of their function can lead to cancer formation. Recent studies have also revealed more mechanisms through which cyclins can express their oncogenic potential. This review focuses on the aberrant expression of G1/S cyclins and especially cyclin D and cyclin E; the pathways through which they lead to tumour formation and their involvement in different types of cancer. These elements indicate the mechanisms that could act as targets for cancer therapy.
PMCID: PMC3016250  PMID: 21176227
6.  Medullary thyroid carcinoma: The third most common thyroid cancer reviewed 
Oncology Letters  2010;2(1):49-53.
Medullary thyroid cancer is a type of thyroid cancer of neuroendocrine origin. It occurs in hereditary and sporadic forms, and its aggressive behavior is associated with the clinical presentation and type of RET mutation. Total thyroidectomy remains the ideal choice of treatment. Early diagnosis and treatment are the fundamental for a 100% cure rate. In this study, we present our experience of 3 cases, along with a complete review of the literature derived from a Pubmed Database search.
PMCID: PMC3412473  PMID: 22870127
thyroid gland; medullary thyroid carcinoma; calcitonin; thyroidectomy
7.  Walled-off pancreatic necrosis 
Walled-off pancreatic necrosis (WOPN), formerly known as pancreatic abscess is a late complication of acute pancreatitis. It can be lethal, even though it is rare. This critical review provides an overview of the continually expanding knowledge about WOPN, by review of current data from references identified in Medline and PubMed, to September 2009, using key words, such as WOPN, infected pseudocyst, severe pancreatitis, pancreatic abscess, acute necrotizing pancreatitis (ANP), pancreas, inflammation and alcoholism. WOPN comprises a later and local complication of ANP, occurring more than 4 wk after the initial attack, usually following development of pseudocysts and other pancreatic fluid collections. The mortality rate associated with WOPN is generally less than that of infected pancreatic necrosis. Surgical intervention had been the mainstay of treatment for infected peripancreatic fluid collection and abscesses for decades. Increasingly, percutaneous catheter drainage and endoscopic retrograde cholangiopancreatography have been used, and encouraging results have recently been reported in the medical literature, rendering these techniques invaluable in the treatment of WOPN. Applying the recommended therapeutic strategy, which comprises early treatment with antibiotics combined with restricted surgical intervention, fewer patients with ANP undergo surgery and interventions are ideally performed later in the course of the disease, when necrosis has become well demarcated.
PMCID: PMC2852817  PMID: 20380001
Walled-off pancreatic necrosis; Infected pseudocyst; Severe pancreatitis; Acute necrotizing pancreatitis; Pancreas; Inflammation; Alcoholism
8.  Breast cancer incidence in Greek women in relation to ABO blood groups and Rh factor 
To investigate the correlation between breast cancer in Greek women and ABO blood groups.
In 166 female patients with breast cancer factors such as blood group, histological type, family history, presence or absence of nodal and/or distant metastases were examined. These patients had similar demographic, clinical, surgical, immunohistochemical, laboratory, and follow-up data and this group is representative of general population of women in Greece.
The ductal type of breast cancer was differentially distributed in blood groups Rh (+) (P ≤ 0.001). In patients with A (+) blood group the ductal type of breast cancer was present in 49.6% of cases, in relation to the other blood groups and in AB blood group the same type occurred rarely (3.6%). Rh (+) women with positive family history were more often found in A blood group. The relative risk of metastasis in Rh (-) patients was 4.2 times higher than that in Rh (+) patients. Among Rh (+) patients, the relative risk of metastasis was 1.29 times higher in A blood group than in other blood groups.
Blood group A is often associated with ductal breast cancer (49.6%), in contrast to the other blood groups and particularly to blood group AB (3.6%). Blood group A and, particularly, A (-) has the worst prognosis of all.
PMCID: PMC2741482  PMID: 19689811
9.  Gastrointestinal stromal tumor 
GISTs are a subset of mesenchymal tumors and represent the most common mesenchymal neoplasms of GI tract. However, GIST is a recently recognized tumor entity and the literature on these stromal tumors has rapidly expanded.
An extensive review of the literature was carried out in both online medical journals and through Athens University Medical library. An extensive literature search for papers published up to 2009 was performed, using as key words, GIST, Cajal's cells, treatment, Imatinib, KIT, review of each study were conducted, and data were abstracted.
GIST has recently been suggested that is originated from the multipotential mesenchymal stem cells. It is estimated that the incidence of GIST is approximately 10-20 per million people, per year.
The clinical presentation of GIST is variable but the most usual symptoms include the presence of a mass or bleeding. Surgical resection of the local disease is the mainstay therapy. However, therapeutic agents, such as Imatinib have now been approved for the treatment of advanced GISTs and others, such as everolimus, rapamycin, heat shock protein 90 and IGF are in trial stage demonstrate promising results for the management of GISTs.
PMCID: PMC2749031  PMID: 19646278
10.  Successful pregnancy after breast cancer therapy: dream or reality? 
Nowadays, more breast cancer patients want to have children after the diagnosis of cancer. The purpose of this study is to review the possibility and risks of giving birth among women with breast cancer previously treated by chemotherapy.
Case presentation
Two young women aged 28 and 34 respectively, were treated in our clinic for breast cancer, the first (negative hormonal receptors) by surgery, chemotherapy and radiotherapy and the second (positive hormonal receptors) by surgery, radiotherapy and tamoxifen. They both became pregnant, 1 and 8 years after completion of the therapy respectively.
Laboratory testing during pregnancy was negative in both cases and after an uneventful course each woman gave birth to a perfectly healthy child. The first patient breastfed her baby for three months, while the second one did not breastfeed her baby at all.
Women undergoing chemotherapy for breast cancer can maintain their fertility and get pregnant. Previous chemotherapy for breast cancer does not present any supplementary risks for the child's mental or physical health.
PMCID: PMC2651905  PMID: 19254357
11.  Phylloides tumor of the breast: a rare neoplasm, though not that innocent 
Cystosarcoma phylloides (CP) is an extremely rare form of breast cancer with an unpredictable clinical course. The histological characteristics of this neoplasm have not proved to offer much in the estimation of prognosis of these patients.
Patients and methods
In our clinics, in a time period of 38 years, 22 patients with cystosarcoma phylloides were treated. There were 5 cases of malignancy, 15 cases with benign tumors, and two cases histologically characterized as borderline neoplasia. Metastases were manifested in one patient. All patients were on a 5-year follow-up, except in five cases, one operated three years ago and four operated within the last two years.
16 of 22 patients did not present any signs of local recurrence or metastases. There were three patients that manifested local recurrence and underwent supplementary ongectomy or mastectomy and are free of recurrence ever since. One patient with metastatic CP died.
Independently of its histopathological behavior, CP is a tumor difficult to be treated. Meticulous follow-up is mandatory in order to manage possible recurrence of the neoplasm.
PMCID: PMC2649148  PMID: 19232098
12.  Mirizzi Syndrome: an unexpected problem of cholelithiasis. Our experience with 27 cases 
Mirizzi syndrome is a rare complication of long standing cholelithiasis. The purpose of this study is to retrospectively estimate the diagnostic and treatment methods applied in patients with Mirizzi syndrome.
Materials and methods
Our experience with 27 cases with Mirizzi syndrome is presented. They were diagnosed either by imaging techniques, or during surgical operation. All of the patients were managed surgically.
8 patients were diagnosed preoperatively and the rest intraoperatively. Morbidity rate after surgery was 18,5%, and mortality rate was zero. The patients presented free of symptoms three months after surgery during the follow-up.
Mirizzi syndrome is rarely diagnosed preoperatively and US proved inadequate for this purpose. Surgery is the only therapy and usually provides additionally definitive diagnosis.
PMCID: PMC2413250  PMID: 18495037
13.  Acute abdomen due to primary omentitis: a case report 
Idiopathic segmental infarction of the greater omentum (ISIGO) is an uncommon cause of acute abdomen in children and adults and its etiology is rather vague and speculative. The clinical presentation is usually with atypical acute or subacute abdominal pain. In a number of cases radiologic imaging allows proper preoperative diagnosis and treatment.
Case presentation
We report a case of ISIGO in a 31 year old patient, who presented with acute abdominal pain, nausea, vomiting and leukocytosis. Radiologic investigation was non-specific. The patient underwent surgical resection of the infracted omentum with compete recovery.
ISIGO should be considered in the differential of acute abdomen especially when presentation is atypical and all other causes have been excluded. In cases with non-specific radiologic findings, laparotomy is necessary for proper diagnosis and treatment. Surgical resection of the infracted omentum results in uneventful recovery in the majority of cases.
PMCID: PMC1948008  PMID: 17655767
14.  Clinical considerations and therapeutic strategy for sigmoid volvulus in the elderly: A study of 33 cases 
AIM: To evaluate different types of treatment for sigmoid volvulus and clarify the role of endoscopic intervention versus surgery.
METHODS: A retrospective review of the clinical presentation and imaging characteristics of 33 sigmoid volvulus patients was presented, as well as their diagnosis and treatment, in combination with a literature review.
RESULTS: In 26 patients endoscopic detorsion was achieved after the first attempt and one patient died because of uncontrollable sepsis despite prompt operative treatment. Seven patients had unsuccessful endoscopic derotation and were operated on. On two patients with gangrenous sigmoid, Hartmann’s procedure was performed. In five patients with viable colon, a sigmoid resection and primary anastomosis was carried out. Three patients had a lavage “on table” prior to anastomosis, while in the remaining 2 patients a diverting stoma was performed according to the procedure of the first author. Ten patients were operated on during their first hospital stay (3 to 8 d after the deflation). All patients had viable colon; 7 patients had a sigmoid resection and primary anastomosis, 2 patients had sigmoidopexy and one patient underwent a near-total colectomy. Two patients (sigmoidectomy-sigmoidopexy) had recurrences of volvulus 43 and 28 mo after the initial surgery. Among 15 patients who were discharged from the hospital after non-operative deflation, 3 patients were lost to follow-up. Of the remaining 12 patients, 5 had a recurrence of volvulus at a time in between 23 d and 14 mo. All the five patients had been operated on and in four a gangrenous sigmoid was found. Three patients died during the 30 d postoperative course. The remaining seven patients were admitted to our department for elective surgery. In these patients, 2 subtotal colectomies, 3 sigmoid resections and 2 sigmoidopexies were carried out. One patient with subtotal colectomy died. Taken together of the results, it is evident that after 17 elective operations we had only one death (5.9%), whereas after 15 emergency operations 6 patients died, which means a mortality rate of 40%.
CONCLUSION: Although sigmoid volvulus causing intestinal obstruction is frequently successfully encountered by endoscopic decompression, however, the principal therapy of this condition is surgery. Only occasionally in patients with advanced age, lack of bowel symptoms and multiple co-morbidities might surgical repair not be considered.
PMCID: PMC4065930  PMID: 17352024
Volvulus; Celiotomy; Large bowel obstruction; Decompression; Sigmoidectomy
15.  An alternative surgical approach to a difficult case of Mirizzi syndrome: A case report and review of the literature 
Mirizzi syndrome (MS) is an uncommon complication of gallstone disease and occurs in approximately 1% of all patients suffering from cholelithiasis. The syndrome is characterized by extrinsic compression of the common hepatic duct frequently resulting in clinical presentation of intermittent or constant jaundice. Most cases are not identified preoperatively. Surgery is the indicated treatment for patients with MS. We report here a 71-year-old male patient referred to the surgical outpatient department for diffuse upper abdominal pain and mild jaundice (bilirubin rate: 4.2 mg/dL). Ultrasound examination revealed a stone in the cystic duct compressing the common hepatic duct. The patient had a history of gastrectomy for gastric ulcer 30 years ago. MRCP revealed a stone impacted in the cystic duct causing obstruction of the common hepatic duct by extrinsic compression. With these findings the preoperative diagnosis was indicative of MS. At laparotomy a moderately shrunken gallbladder was found embedded in adhesions containing a large stone which was palpable in the common bile duct. The anterior wall of the body of the gallbladder was opened by an incision which extended longitudinally along the gallbladder towards the common bile duct. The stone measuring 3.0 cm in diameter, was then removed setting astride a large communication with the common bile duct. A Roux-en-Y cholecysto-choledocho-jejunostomy was performed. The subhepatic region was drained. The patient had an uneventful recovery. He was discharged eleven days after operation and remained well after a 30-mo follow-up.
PMCID: PMC4088251  PMID: 17007006
Benign jaundice; Hepatic duct obstruction; Impacted gallstone; Cholecystobiliary fistula

Results 1-15 (15)