Publications by authors named "Zahoor Sheikh"

There is near consensus that prophylactic lateral neck dissection has no role in the management of differentiated thyroid cancer, but the extent of lateral neck dissection in differentiated thyroid cancer remains controversial, especially whether level V should be addressed or not. There is lot of heterogeneity in reporting of the management of level V in papillary thyroid cancer. We at our Institute address the lateral neck positive papillary thyroid cancer with selective neck dissection involving levels II-IV, performing extended level IV dissection with inclusion of the triangular area delineated by the sternocleidomastoid muscle, the clavicle, and the perpendicular line drawn to the clavicle from the point where the horizontal line at the level of cricoid cuts the posterior border of sternocleidomastoid muscle.

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Background: It is still unknown what is the appropriate time between neoadjuvant chemotherapy (NACT) and gastrectomy in cases of gastric cancer. To comprehend the relationship more clearly between waiting time after NACT before having a gastrectomy and survival results, a meta-analysis was done.

Methods: Retrospective and prospective research from the PubMed, Embase, and Cochrane Library databases were thoroughly reviewed.

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Purpose: Ovarian cancer (OC) is ranked as the third most common gynecologic cancer in various Indian cancer registries. In India, OC is seen in the younger age group, with a median age < 55 years being reported by most of the studies. The majority of patients are diagnosed in advanced stage (70%-80%), where the long-term (10-year) survival rate is poor, estimated at 15%-30%.

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Genetic instabilities exacerbated by the dysfunction of telomeres can lead to the development of cancer. Nearly 90% of all human malignancies are linked with telomere dysregulation and overexpression of telomerase, an enzyme that catalyzes the synthesis of telomeric DNA repeats at the ends of chromosomes. The burden of gastric cancer continues to inflict a deterring impact on the global health scenario, accounting for over one million new cases in 2020.

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Perivascular epithelioid cell tumor (PEComa) is a tumor of mesenchymal origin, with features of perivascular epithelioid cells. The primary sites of PEComa reported are the uterus, vulva, rectum, heart, breast, urinary bladder, abdominal wall, pancreas, retroperitoneum, liver, and uterus. But what is unique is that PEComa of the gynecological tract is very rare.

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Protein ubiquitination is one of the most crucial posttranslational modifications responsible for regulating the stability and activity of proteins involved in homeostatic cellular function. Inconsistencies in the ubiquitination process may lead to tumorigenesis. Ubiquitin-specific peptidases are attractive therapeutic targets in different cancers and are being evaluated for clinical development.

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Background: It is believed that carrying out laryngectomy in tracheotomized patients leads to higher postoperative complications and stomal recurrence compared to carrying out the procedure upfront without prior tracheotomy. We believe that emergency laryngectomy is a feasible procedure in most cancer centers and can be carried out for indications beyond acute airway obstruction as well and complex reconstruction procedures can be also carried out simultaneously. We hereby describe our experience with emergency laryngectomy with or without pharyngectomy.

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 Papillary thyroid carcinoma has a very high rate of lateral neck node metastases, and there is almost unanimity concerning the fact that some sort of formal neck dissection must be performed to address the clinical neck disease in these cases. Although there is an agreement that levels II to IV need to be cleared in these patients, the clearance of level V is debatable.  We herein have tried to analyze various papers that have documented a structured approach to neck dissection in these patients.

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 There is difference of opinion about the placement of the drain in thyroid surgeries, and, to the best of our knowledge, the efficacy of drainless total thyroidectomy regarding various parameters of thyroid lesions has not been well-established.  To report our experience with drainless total thyroidectomy, and to define an appropriate patient population for its performance.  This is a retrospective case analysis of the patients who underwent total thyroidectomy for intrathyroidal lesions with or without central neck dissection in a tertiary referral hospital (number = 74).

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Sentinel lymph node biopsy has become a standard staging tool in the surgical management of breast cancer. The positive impact of sentinel lymph node biopsy on postoperative negative outcomes in breast cancer patients, without compromising the oncological outcomes, is its major advantage. It has evolved over the last few decades and has proven its utility beyond early breast cancer.

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Background: Distant metastasis from differentiated thyroid carcinoma at presentation is rare and isolated liver metastasis on presentation is almost unknown. We report a case of primary follicular carcinoma of the thyroid with isolated liver metastasis at presentation.

Case Presentation: A 65-year-old man of Kashmiri origin presented to our tertiary referral center with obstructive jaundice; he was evaluated with magnetic resonance cholangiopancreatography and positron emission tomography-computed tomography.

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Background: We endeavored to analyze patients of subacute and chronic subdural hematomas studied in a 4-year period at the Sher-i-Kashmir Institute of Medical Sciences, Kashmir, India.

Methods: The study was a retrospective analysis of 1181 patients of subdural hematomas. Demographic characteristics, clinico-radiologic features, operative modalities, and outcome were studied.

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Object: The aim of this study was to analyze the correlation of hypodensity in extradural hematomas on CT with the clinical profile in pediatric patients. This is the only study available in this age group.

Methods: This was a prospective study conducted over a period of 3 years in which all children 18 years old or younger with a diagnosis of cranial extradural hematoma were included.

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Brain tumors in children represent the second most frequent tumors in this age group after hematologic malignancies. We highlight the demographic pattern after retrospective analysis of brain tumors in children from geographically and ethnically distinct Kashmir Valley managed in our center between 2000 and 2009. We had a total of 248 pediatric patients with brain tumors.

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Background: Esophageal carcinoma is the fifth leading gastrointestinal malignancy and is one of the leading causes of cancer related death. Despite improvements in surgical technique over the last few decades, the outcome has been dismal, with overall 5 year survival not exceeding 15%-25%.

Aims And Objectives: To evaluate the effect of preoperative chemotherapy on resectability, complication rate and overall survival in patients with squamous cell carcinoma esophagus.

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Neuroendocrine tumor (Merkel cell carcinoma-MCC) of the vulva is a very rare entity with less than 15 cases reported in the English literature. It is known for its aggressive behaviour and propensity for early dissemination. The actual cell of origin and etiology of this disease is controversial.

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Buschke Lowenstein tumour or giant condyloma acuminata is a rare entity with only less then 50 cases reported in English literature so far. No such case has been reported from the Kashmir valley. They are considered as intermediate lesions between simple condyloma acuminata and invasive squamous cell carcinoma.

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