Thyroidectomy for benign and malignant diseases has progressed dramatically over the last two decades. Moving from large collar incision to no scar is a very good news to the patient with neck swellings. The morbidity of the surgery remains low regardless of the technique and approaches used but scarless surgery is still limited to benign diseases and small cancers. Further study and future refinement of the technique might make these techniques also applicable to large tumours.
Appendicitis within an Amyand's hernia is rare; when it occurs it is often misdiagnosed as a strangulated inguinal hernia. Management of these cases needs to be individualized according to the presentation. In uncomplicated cases, we recommend concurrent appendectomy and darning repair of the hernia. We present such a case and review the related literature.
Antibiotic prophylaxis for inguinal hernioplasty is still practiced in many hospitals to prevent consequences of infected mesh, mesh removal and hernia recurrence. The common route of administration is intravenous. However this method can be associated with systemic side effects. Alternatively, locally applied antibiotics have been used and proven to significantly reduce the infection rate after inguinal hernioplasty.
The decision for median sternotomy for retrosternal goiter is complex and proper consensus are lacking. Generally, it is based on clinical, radiological and intraoperative assessment. Among the few known features include primary mediastinal goiter, posterior mediastinal goiter and recurrent retrosternal goiter. We present a patient with posterior mediastinal, secondary goiter that extended until the tracheal bifurcation. The goiter was removed successfully via a low cervical incision and this was achieved by dissecting along the anatomical plane close to the thyroid capsule using blunt dissection with fingers. It is possible for these kinds of high risk retrosternal goitres to be safely removed without the need for thoracotomy when the surgery was performed along the proper plane.
Primary thyroid lymphoma is a rare tumour of the thyroid gland, accounting for 1-2 % of all thyroid malignancies. Diagnosis by fine needle aspiration cytology occasionally inconclusive, needing bigger biopsy or even thyroidectomy. This study reviews our experience with primary thyroid lymphoma.
The tumour suppressor gene p53 and the proto-oncogene Bcl-2 encode respectively, for a nuclear phosphoprotein and for a mitochondrial membrane protein involved in multiple cellular functions. Both proteins are linked to programmed cell death pathways and provide prognostic information on breast carcinoma. Our aim is to study the expression of p53 and Bcl-2 oncoproteins in breast carcinoma and correlate with patients’ age, tumour size, disease stage and histological grade. Fifty nine cases of breast carcinomas from Universiti Kebangsaan Malaysia Medical Centre (UKMMC) were studied with the immunohistochemical method. Our results showed 45.8% (27 of 59) and 40.7% (24 of 59) of the breast carcinomas were immunopositive for p53 and Bcl-2 respectively. There was significant correlation between Bcl-2 expression with early tumour stage (p=0.01). No significant relationship was seen with other variables. Results also showed an inverse relationship between p53 and Bcl-2 expression (p=0.001). These findings indicate a down regulation of Bcl-2 by p53 in breast carcinogenesis.
Type 1 Neurofibromatosis (von Reckinghausen’s disease) has been associated with several gastrointestinal tumor complications, either benign or malignant. We report a case of a middle age man who had Type 1 Neurofibromatosis and presented with acute intestinal obstruction. Laparotomy revealed multiple nodular lesions along the small intestine with two larger nodules which were resected. Histopathological examination of the nodules confirmed it as gastrointestinal stromal tumors (GIST) with malignant potential. The association between neurofibromatosis and GIST is discussed.
Schwannomas are rare tumours arising from peripheral nerve linings. A case of a schwannoma arising from cervical sympathetic chain is presented. The clinical presentation was that of a right solitary thyroid nodule. Intra-operatively, a 3 x 3 cm encapsulated lesion was seen arising posterior to the vagas nerve and attached to the cervical sympathetic trunk. The lesion was excised together with part of the nerve. Post-operatively, the patient developed Horner's syndrome that persisted. Unitil 2000, less that 50 cased of cervical sympathetic schwannoma have been described in the Englidh literature. A brief description of the pathology, presentation, diagnosis and treatment of this condition is presented.
Presence of a hypofunctioning pigmented adenoma are commonly asymptomatic and is usually only found during an autopsy. In contrast, hyperfunctioning pigmented adenoma is a rare clinical entity and in the majority of cases results in Cushing's syndrome. In this case study, we report a 66-year-old male who presented instead with the clinical and biochemical features of Conn's syndrome. On laparoscopic adrenalectomy, it was found that the tumour had a functioning black adenoma which does not usually present with Conn's syndrome but rather to that of a Cushing's. The intraoperative changes and histopathological findings are discussed.
Radiotherapy has been widely use as an adjuvant therapy in the breast cancer management. The usage has increased the incidence of radiation induce sarcoma. We here present a case of radiation induce sarcoma of the axilla following mastectomy and axillary lymph node dissection for infiltrating ductal carcinoma.
Metaplastic breast cancer is a rare form of primary breast cancer. It contains a mixture of adenocarcinoma with metaplastic elements. It is important to differentiate with primary sarcoma of the breast which carries different treatment strategies and prognosis. A 55-year-old lady previously diagnosed to have a left breast cancer in the year 2000 and carcinoma of the endometrium in 2009, presented with a right breast lump. A trucut biopsy reported as an infiltrating ductal carcinoma with background of chondromyxoid and cartilagenous matrix,
most probably metaplastic carcinoma. A wide local excision with sentinel lymph node biopsy was performed, and the final histology was consistent with metaplastic chondroid carcinoma of the breast with no evidence of metastsis. The surgery was followed by adjuvant radiotherapy and currently free from any recurrence. The diagnostic dilemma on this very rare condition is reviewed.
Primary thyroid lymphoma is a rare disorder accounting for about 2% of all malignant lymphomas and less than 5% of thyroid malignancies. It is an aggressive disease with poor outcome. The majority of thyroid lymphomas are non-Hodgkin lymphomas of Bcell origin. Majority of cases occur in women in the sixth decade. We report two cases of primary thyroid lymphoma and highlight the clinical issues and challenges posed by this rare disease. Both cases presented with respiratory obstructive symptoms that required surgical intervention. The optimal management for a primary thyroid lymphoma be it chemotherapy, radiotherapy, surgery or monoclonal antibodies is still debatable. The role for surgery has evolved through the years but its importance in emergency situations should not be overlooked. Both our patients had to undergo surgery but only one patient received additional chemotherapy and radiotherapy. These two case reports illustrated the difficulties in managing this rare disorder.
Aneusomy is an early genetic event and a characteristic feature of many solid tumors. It is often associated with poor prognosis in cancer patients. The involvement of PAX8-PPARγ rearrangement in tumorigenesis of follicular thyroid lesions has been widely assessed. However, there were few reports on aneusomy of the PPARγ gene at the 3p25 locus in follicular thyroid lesions. It remains undetermined whether these abnormalities can be translated into improved diagnosis, classification, or outcome prediction. Herein, we report three cases of follicular thyroid neoplasms [two follicular thyroid carcinomas (FTCs) and one Hurthle cell adenoma (HCA)] with 3p25 aneusomy detected by fluorescence in situ hybridization (FISH). 3p25 trisomy was observed in one FTC and one HCA while 3p25 tetrasomy was observed in one FTC. Furthermore, all three lesions did not show overexpression of PPARγ protein. Hurthle cell neoplasms (HCN) are distinct clinically and histologically from other follicular thyroid neoplasms (FTN). However, the presence of the aneusomy in HCA and FTC indicates that there could be a biological continuum between the two and chromosomal gains might play an important role in the pathogenesis of these two types of neoplasms. Despite their differences, HCN and FTN may share the same early genetic event in tumour development.
A surgeon’s experience plays an important role in breast conserving surgery (BCS). The common conception is that, the more junior is the operating surgeon, the surgical margin will be wider or closer to the tumour edge. Thus the aim of this study is to look into the adequacy of surgical margin performed by different level of surgeons’ experience in patients whom underwent wide local excision (WLE) and hook-wire localization (HWL) in our surgical unit. The surgical experience of the operating surgeon and their surgical margins will be analyzed. This is a retrospective study from January 2000 to December 2012. Eighty-eight patients with early breast cancer underwent WLE and HWL by 3 different groups of surgeons (breast surgeons, junior surgeons and surgical registrars) were included. The surgical margins were analyzed for involved-margin, closed-margin or excessed-margin.The incidence of involved-margin, closed-margin and excessed-margin is the lowest among breast surgeons compared to other groups. However, the results were not statistically significant. The incidence of involved surgical margin is significantly higher within junior surgeons for HWL compared to the breast surgeons. The incidence of involved, closed or excessed surgical margin were lowest when performed by breast surgeon but not significantly different between the three groups. However, for HWL the breast surgeons significantly better compared to the other groups.
Thyroid nodules are common but thyroid malignancies are not. Fine needle aspiration (FNA) cytology is a diagnostic tool used to screen patients with thyroid nodules who require surgery. We study the diagnostic accuracy of FNA as the initial diagnostic modality in the clinical assessment of thyroid nodules. Between January 1995 until December 2000, 2131 FNA of thyroid nodules were performed. Four hundred and forty-one (20.7%) of these were unsatisfactory and 1690 (79.3%) cases were satisfactory for cytological evaluation. Histopathological diagnosis were available for 361 cases. Cyto-histopathological correlation was carried out for these cases. Our results showed a diagnostic accuracy of 96.2% with sensitivity and specificity rates of 87.7% and 98.4% res- pectively. Our positive predictive value is 93.4% and our negative predictive value is 96.8%. From this study, we conclude that fine needle aspiration is an important initial screening diagnostic tool for the investigation of thyroid nodules.
Background: Thyroid swelling or goitre is a common condition, either asymptomatic or symptomatic. The
diagnosis is usually established by ultrasound or fine needle aspiration cytology (FNAC) as a gold standard.
The sensitivity of the test is inversely related to increasing size of the nodule. The objective of this study is
to evaluate the accuracy of FNAC especially in cases of large goitre.
Material and methods: This is a
retrospective study on patients who underwent thyroidectomy between January 2000 to December 2007 for
solitary or dominant nodular goitre. The analysis was made only on those patients with complete data on
FNAC and histology.
Result: There were 235 patients, but only 161 patients were analysed after excluding
the suspicious and inadequate sample. The patients’ mean age was 42.1 year old (21 to 60). The size of the
thyroid nodule ranged from 2.1 to 5.0 cm (mean = 3.9 cm). The overall sensitivity was 67.4% and the overall
accuracy was 86.3%. The accuracy of FNAC according to the sizes above and below the value were as
follows; 2 cm (72.2% vs. 88.1%); 3 cm (88.0% vs. 87.4%) ; 4 cm (86.6% vs. 84.4%) ; 5 cm (87.3% vs. 78.8%).
This was most obvious in the sensitivity of the FNA which also showed reducing trend as the nodules
increased in size.
Conclusion: FNAC is an essential diagnostic tool in the management of nodular goitre.
Our study showed that the accuracy of FNAC decreased as the size of the nodule getting bigger. Cautious
approach should be taken in the management of large goitre and decision should not be based only on the
result of FNAC.
The tetraspanin gene, CD151 is involved in various tumour cell progression and metastasis. Its expression is increased in high grade, estrogen receptor negative and c-erbB-2 positive breast cancer. However, the biological function and expression phenotype among different tumour status, estrogen receptor (ER) status, progesterone receptor (PR) status and c-erbB-2 expression in multi-ethnic Malaysian breast cancer patients has not been well investigated. We used quantitative real-time reverse transcriptase polymerase chain reaction (qRT-PCR) to measure the CD151 gene expression in 45 breast cancers. Our preliminary results revealed that CD151 expression is significantly higher in ER positive and PR positive breast cancers at 95% and 99% confidence intervals, respectively. In contrast, there is no significant correlation between CD151 expression and tumour grades or c-erbB-2 status at 95% confidence interval level. Our preliminary findings suggested that CD151 may be involved in the estrogen responsive pathways. CD151 could be a potential prognostic marker and therapeutic target in the treatment of estrogen dependent breast cancer patients.
OBJECTIVE: The aim of this study was to investigate if preemptive local infiltration (PLA) with ropivacaine could improve postoperative pain and determine its effect on drain output postmastectomy with axillary dissection.
METHODS: This was a prospective, randomized trial comprising 30 women allocated to two groups: one to receive postoperative wound infiltration (POW) of 20 mL of 0.2% (40 mg) ropivacaine (Naropin) versus PLA with 20 mL of 0.2% ropivacaine (Naropin) diluted with 80 mL of 0.9% saline, total volume 100 mL. A visual analogue scale (0-100 mm) and angle of shoulder abduction were used for evaluation of pain. Postoperatively, all patients received oral ibuprofen 400 mg tds.
RESULTS: There was no significant difference in postoperative pain for the first 3 days between the two groups. There were wider shoulder abduction angles in the 1st and 3rd postoperative days in the PLA group, but this was not significant. Operative time was significantly shorter in the PLA group than in the POW group (69.34+/-59.37 minutes vs. 109.67+/-26.96 minutes; p=0.02). The axillary drain was removed earlier in the preemptive group, 5.4+/-1.55 days versus 6.8+/-2.04 days in the postoperative group (p=0.04).
CONCLUSION: We found no difference in postoperative pain between preemptive tumescent ropivacaine infiltration and postoperative ropivacaine wound infiltration.
Ductal carcinoma in situ (DCIS) in females is a recognized premalignant disease. However, its occurrence in males is rare. Articles describing this disease are scarce with documented occurrence is less than 7% worldwide. We report a case of 52 year-old gentleman presented with 6 months history of left breast lump. It was painless with no nipple discharge. Despite an inconclusive biopsy, lumpectomy was performed in view of the suspicion of malignant disease. Histopathology confirms DCIS. He underwent mastectomy and sentinel lymph nodes. Most treatment strategies are based on evidence on female breast malignancy and modifications are needed due to the different pathological pathway in male.
A 40-year-old woman, a grand multipara with uncertain gestation, presented with severe, prolonged diarrhoea. She was previously diagnosed to have melanoma. Examination revealed gross ascites with hepatosplenomegaly and uterus corresponding to 29 weeks gestation. An emergency caesarean section confirmed widespread metastases to the ovaries, mesentery and placenta. A viable male foetus was delivered with features of intrauterine growth restriction. The baby survived, but the mother died a week later. This case highlights the importance of thoroughly assessing placentas and babies of patients with melanoma for metastases.