Extended Level IV Neck Dissection for Limited Prophylactic Clearance of Level V in Node-Positive Papillary Thyroid Carcinoma: a Homogenous Study Population.

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. Retrospective analysis of the departmental data set related to thyroidectomy with lateral neck dissection from 2013 to mid-2019 for papillary thyroid cancer, was carried out. Patients with recurrent papillary thyroid cancer were excluded as were patients with involvement of level V. Data related to the demography of patients, histological diagnosis, and postoperative complications were compiled and summarized. Note was made of the incidence of ipsilateral neck recurrence and the neck level involved with recurrence noted. Data was analyzed for fifty-two patients of non-recurrent papillary thyroid cancer who had undergone total thyroidectomy and lateral neck dissection involving levels II-IV, with extended dissection at level IV. It should be noted that none of the patients had clinical involvement of level V. Only two patients had lateral neck recurrence, both the recurrences were in level III, one on the ipsilateral side and the other on the contralateral side. Recurrence in the central compartment was noted in two patients, with one of these patients also having ipsilateral level III recurrence. One of the patients had distal metastasis to the lungs. Transient paresis of the unilateral vocal cords was noted in seven patients which got resolved within 2 months in all of them. Transient hypocalcemia was noted in four patients. Although our series has a small sample size with limited follow-up, it is one of the few studies in which prophylactic level V dissection has been studied in a homogenous study population of non-recurrent papillary thyroid cancer. Our study has shown that prophylactic dissection of level V may have a limited role, but further large multi-institutional studies need to be carried out to come up with a definite answer.

Perivascular Epithelioid Cell Tumor (PEComa) of Vulva: a Rare Occurrence.

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. Uterus is the most common location of PEComa reported from female genital tract. PEComa of vulva is extremely rare. A 36-year-old woman presented with vulvar mass. Her final histopathological report came as PECOMA. Ours is the third case of PEComa vulva reported in English literature. After extensive literature search, we found only two previous cases reported of PEComa of vulva. One case was of primary PEcoma of vulva reported from Japan and other from China. Distinguishing among mesenchymal neoplasms, including PEComas, endometrial stromal sarcomas, and leiomyosarcomas, can be difficult. Careful analysis of morphologic and immunohistochemical features is of the utmost importance. Ours is the third such case of PEComa of vulva reported in English literature.

Emergency Laryngectomy Feasibility and Indications Beyond Airway Obstruction in the Era of Concurrent Chemoradiotherapy.

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. METHODS: Retrospective analysis of prospectively maintained data base was carried out. Patients who had undergone emergency laryngectomy in our department, from 2014 to 2018, were analyzed, and their clinicodemographic and histopathological features were noted. The indications for surgery and postoperative complications were charted down. Survival data of patients were also noted. RESULTS: Seven patients have undergone emergency laryngectomy, 5 for acute airway obstruction and 2 for acute bleeding. Five patients were chemoradiotherapy failures, whereas 2 patients were operated upfront. Two out of 7 patients had pyriform fossa carcinoma, whereas rest of the patients had carcinoma of glottis. Reconstruction with pectoralis myocutaneous/pectoralis muscle only flap was carried out in 4 patients. Minor salivary leak was noted in 4 patients at varying time intervals from second week onward. Two patients had post radiotherapy chondroradionecrosis, without any residual/recurrent tumor. Three out of 7 patients developed recurrence which was salvageable in only 1 patient. CONCLUSION: Emergency laryngectomy can be safely carried out in emergency setting in most cancer centers, more so over it can be carried out for indications beyond acute airway obstruction and combined with complex reconstruction procedures.

Level V Clearance in Neck Dissection for Papillary Thyroid Carcinoma: A Need for Homogeneous Studies

Abstract Introduction 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. Objectives We herein have tried to analyze various papers that have documented a structured approach to neck dissection in these patients. Moreover, we have also tried to consider this issue through various aspects, like spinal accessory nerve injury and the impact of neck recurrence on survival. Data Synthesis The PubMed, Medline, Google Scholar, Surveillance, Epidemiology, and End Results (SEER), and Ovid databases were searched for studies written in English that focused on lateral neck dissection (levels II-IV or II-V) for papillary thyroid carcinoma. Case reports with 10 patients or less were excluded. Conclusions The current evidence is equivocal whether to clear level V or not, and the studies published on this issue are very heterogeneous. Level II-IV versus level II-V selective neck dissections in node-positive papillary thyroid carcinoma patients is far from categorical, with pros and cons for both approaches. Hence, we feel that there is a need for more robust homogeneous data in order to provide an answer to this question.

Level V Clearance in Neck Dissection for Papillary Thyroid Carcinoma: A Need for Homogeneous Studies.

Introduction 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. Objectives We herein have tried to analyze various papers that have documented a structured approach to neck dissection in these patients. Moreover, we have also tried to consider this issue through various aspects, like spinal accessory nerve injury and the impact of neck recurrence on survival. Data Synthesis The PubMed, Medline, Google Scholar, Surveillance, Epidemiology, and End Results (SEER), and Ovid databases were searched for studies written in English that focused on lateral neck dissection (levels II-IV or II-V) for papillary thyroid carcinoma. Case reports with 10 patients or less were excluded. Conclusions The current evidence is equivocal whether to clear level V or not, and the studies published on this issue are very heterogeneous. Level II-IV versus level II-V selective neck dissections in node-positive papillary thyroid carcinoma patients is far from categorical, with pros and cons for both approaches. Hence, we feel that there is a need for more robust homogeneous data in order to provide an answer to this question.