Benign multinodular goitre presenting as acute decompensated type two respiratory failure.

Acute airway obstruction is a life-threatening complication of benign goitre mostly occurring in cases of known progressing goitres. The index presentation of goitre with decompensated type two respiratory failure is an exceedingly rare and a diagnostically challenging presentation. We discuss the case of a woman in her 50 s, who had been diagnosed with asthma by her general practitioner, but during admission was found to have a large goitre with retrosternal extension causing critical tracheal compression. She presented with acute decompensated type two respiratory failure. We explore the diagnostic confounding posed by the patient's background of asthma and describe the initial management of the patient with non-invasive ventilation by the emergency department. The diagnosis of upper airway obstruction was not apparent which is an interesting anomaly in this case. She underwent an emergency hemithyroidectomy and recovered with a resolution of her respiratory symptoms. Histology confirmed benign multinodular hyperplasia.

Frequency and Risk Factors of Tracheomalacia in Patients Undergoing Thyroidectomy.

It was a descriptive cross-sectional study to determine the frequency and risk factors of tracheomalacia in patients undergoing thyroidectomy. One hundred and forty-nine patients underwent thyroidectomy at MTI-Khyber Teaching Hospital Peshawar between 1st January 2021 and 1st March 2022. The frequency of post-thyroidectomy tracheomalacia and possible associated factors were determined. The inclusion criteria were patients of either gender, between 18 to 70 years fulfilling criteria of clinically diagnosed cases of thyroid disorders who underwent subtotal, hemi, near or total thyroidectomy for their respective thyroid diseases. Post-thyroidectomy tracheomalacia was recorded in 18 patients (12.1%): Seventeen patients were aged less than 30 (p-value 0.038) and 14 (77.8%) patients had a duration of surgery > three hours (p-value <0.001). Young female patients with multinodular goitre who had a longer duration of surgery developed post-thyroidectomy tracheomalacia more frequently. Hence, the incidence of post-thyroidectomy tracheomalacia can be markedly reduced with proper preoperative assessment and postoperative measures. Key Words: Thyroid gland, Thyroid disorders, Tracheomalacia, Thyroidectomy.

Uncommon diagnosis of multinodular goiter - isolated extrapulmonary manifestation of sarcoidosis in thyroid gland (scientific case reports).

AIM: By means of the scientific description of two uncommon cases who underwent. surgical resection of multinodous goiter and following histopathological investigation revealing isolated extrapulmonary manifestation of sarcoidosis, this uncommon diagnosis including symptomatology, clinical findings, diagnostic and therapeutic management is to be illustrated. CASE DESCRIPTIONS: Diagnostics: Scintigraphy of the thyroid gland with a left-thyroid cold node; ultrasound-guided puncture (cytological investigation, non-suspicious). THERAPY: Elective thyroidectomy with no macroscopic anomalies und no abnormal aspects with regard to surgical tactic and technique. Histopathological investigation: Complete resection specimen of the thyroid gland with granulomatous inflammation consistent with sarcoidosis. CLINICAL COURSE: Uneventful with no further manifestations of sarcoidosis in the following diagnostics. DIAGNOSTICS: Ultrasound, inhomogeneous node (37×30×35 mm) of the right thyroideal gland with echo-poor parts and peripheral vascularization; scintigraphy showing marginally compensated unifocal autonomy of the thyroid gland (laboratory parameters, increased serum level of thyroglobulin [632 ng/mL]). THERAPY: Planned right hemithyroidectomy with confirmed nodous structure of thyroid parenchyma, without suspicious lymph nodes. Histopathological investigation: 33-mm follicular, nodular, encapsulated structure of thyroid parenchyma (diagnosed as follicular adenoma); 2nd opinion: low-grade differentiated carcinoma of thyroid gland with angioinfiltrating growth and granulomatous inflammation of sarcoidosis type. Procedural intent: After tumor-board consultation, completing thyroidectomy was performed within a 5-weeks interval (pT2 pN0[0/1] V1 L0 G3 R0) with subsequent ablating radio'active iodine therapy; 18 F-FDG-PET-CT (several atypical infiltrates within the right upper lobe of the lung) and bronchoscopy with no detection of further manifestation of sarcoidosis. CONCLUSION: Sarcoidosis is considered a rare granulomatous multi-locular, systemic disease of not completely known etiopathogenesis with substantial heterogeneity. In most cases, it is associated with the lung, but which can become manifest in various organs. Frequently, extrapulmonary manifestations are usually detected as histological findings by coincidence, which require further investigation to find out additional manifestations as well as to exclude florid infection or other granulomatous processes (clarifying competently differential diagnosis). Therapy is only indicated in symptomatic organ manifestations, taking into account the high rate of spontaneous healing and possible side effects.

Extended cervical approach for retrosternal multinodular goiter.

Objective: Partial or total sternotomy is required for 10% of retrosternal goiter. This study reviewed our experience with an extended cervicotomic approach as an alternative surgical solution for retrosternal goiter. Methods: A retrospective study was performed on patients who underwent partial or total thyroidectomy for retrosternal goiter between 2014 and 2019 at a tertiary medical centre. Data on clinical, radiologic, and pathologic factors were analysed. Peri- and postoperative outcomes were compared between extended and standard cervical approaches to predict the need for an extended cervical approach. Results: The cohort included 265 patients, of whom 245 (92.4%) were treated by standard thyroidectomy. In 17 (6.4%), the standard approach proved insufficient, and the horizontal incision was extended to a T-shape to improve access. The remaining 3 patients required a sternotomy. Use of the extended cervical approach was significantly associated with clinical features such as male gender, diabetes, high body mass index and postoperative hypocalcaemia. Conclusions: The extended cervicotomic approach is an alternative surgical solution for retrosternal goiter, with no increased risk of significant post-operative complications.

Myasthenia Gravis with Toxic Goiter: Challenges with Management in a Low-Resource Setting in Africa; Review of Literature and Case Report.

ABSTRACT: Myasthenia gravis (MG) is an antibody-mediated autoimmune disease with the cardinal feature being exertional voluntary skeletal muscle weakness and fatigability. It can be an isolated finding or in association with other autoimmune conditions such as Hashimoto's thyroiditis, Graves' disease, systemic lupus erythematosus (SLE), or rheumatoid arthritis. Thymectomy is recommended for most patients with MG whose symptoms begin before the age of 60 years. Patients with thymoma or thymic hyperplasia do respond to thymectomy compared to those without thymoma or enlarged thymus. Those with enlarged goiter would benefit from thyroidectomy. The management of these patients requires a multidisciplinary approach as performed in a low-resource setting. We are reporting the case of a 24-year-old who presented with MG with toxic goiter and had good control on medication. A computed tomography scan of the chest showed a superior mediastinal mass and a soft tissue scan of the neck was done which showed a diffusely enlarged thyroid gland. She subsequently had thymectomy and subtotal thyroidectomy with a satisfactory outcome. We highlight this case to show that MG with thymoma and goiter could coexist. Reports of such findings are infrequently reported in our environment.

Drainless thyroid surgeries including goiter or central neck dissection: a case-control study.

BACKGROUND: Despite ample of evidence regarding feasibility of simple drainless thyroid surgeries, the evidence of feasibility of such procedures in goiters and central neck dissections remains limited. METHODS: Patients undergoing total thyroidectomy (TT) between January 2017 and July 2022 were included. The study included two study groups: drainless TT with central neck dissection (CND) and drainless TT due to goiter, which were compared to two controls: non-goiter drainless TT and drained TT for goiter or with CND. Main outcome was post-operative seroma rate. RESULTS: 156 patients met the inclusion criteria for each of the group. No significant differences between groups were found for permanent hypocalcemia, and other complications. Post-operative seroma was found in nine patients (5.8%), all from study groups. No significant differences between groups were found for local infections, aspirations, post-discharge drain insertion. CONCLUSIONS: Complex drainless thyroid surgeries, including goiter and CND, are feasible and do not seem to significantly increase rate of post-operative seromas or infections.

A case report of tracheal tenting to the skin: An option to tracheostomy for post-thyroidectomy tracheomalacia.

Operating on a huge and long-standing goiter is challenging to the surgeon and anesthetist because of the possibility of tracheomalacia and collapse of the tracheal rings after extubation. We report our innovation of tenting the trachea to the skin using sutures (passed through the strap and sternocleidomastoid muscles) to prevent post-thyroidectomy tracheomalacia.

Utility of Novel Clavicle-lifting Technique in Mediastinal Thyroid Surgery: A Case Series Study.

BACKGROUND/AIM: Symptomatic mediastinal goitre requires surgery and is usually resectable using the cervical approach alone; however, sternotomy is occasionally required. Sternotomy is a highly invasive procedure, and its complications, including mediastinitis and osteomyelitis, can be critical. To date, there have been no reports of non-invasive techniques to avoid sternotomy for mediastinal thyroid tumours. We investigated the safety and efficacy of thyroidectomy using the clavicle lifting technique with a paediatric Kent hook. PATIENTS AND METHODS: This was a retrospective study of 8 patients who underwent thyroidectomy with a clavicle lifting technique between November 2014 and July 2021 at the Department of Surgery, International University of Health and Welfare Hospital. The primary endpoint was sternotomy avoidance rate and R0 resection rate. An extension retractor used in paediatric surgery was used for the clavicle lifting technique. RESULTS: Sternotomy avoidance rate and R0 resection rate were 100%. The mean operative time was 161±53.5 min, and the mean blood loss was 125.6±125.8 ml. There were no intraoperative or postoperative complications related to the clavicle lifting technique. CONCLUSION: Thyroidectomy with a clavicle lifting technique for mediastinal goitre and thyroid cancer is safe and useful because it avoids sternotomy without causing massive intraoperative bleeding or damage to other organs.

Effect of Thyroidectomy on Tracheal Remodeling and Airway Physiology in Apparently Asymptomatic Patients with Goiter: A Prospective Study.

BACKGROUND: Tracheal airflow limitation is frequently reported in patients with goiter but is severely underestimated, and studies on how goiter and its treatment affect trachea are scarce. Moreover, the choice of the optimal treatment for individual patient with asymptomatic goiter is not straightforward. Therefore, in this study we aim to investigate the effect of goiter and subsequent thyroidectomy on tracheal anatomy and change in airflow in asymptomatic patient with goiter. METHODS: Seventy patients undergoing total/hemithyroidectomy (TT/HT) from Feb 2020 to Feb 2021 satisfying inclusion criteria were enrolled in the study. Neck radiograph (NR) and forced spirometry (FS) were performed preoperatively and on postoperative day 10 and 6 weeks and 3 months. RESULTS: Out of 70 patients, 84.3% patients were female, and mean duration and weight of goiter were 54.7 months and 72.21 gm, respectively. Of 70 patients, 57 were of benign pathology. Significant improvement in tracheal compression with moderate improvement in deviation was observed after surgery. Preoperative spirometry showed significant reduction in almost all parameters. After surgery, a weak improvement was observed at postoperative day 10 and 6 weeks; however, significant improvement in FEV1, PEFR, FEV1/FEV0.5, and FEF50%/FIF50% was observed at postoperative 3 months. Patient with right sided and those with ≥ 8 mm deviation were associated with poorer pulmonary function. Weak correlation was observed between neck NR and spirometry parameters. Weight of the thyroid gland significantly correlated with ratio of MVV/FEV1. CONCLUSION: Patients with asymptomatic goiter can have significant abnormal changes in airflow as evidenced by FS and NR. Thyroidectomy is followed by gradual restoration of tracheal deviation and compression with significant improvement in pulmonary airflow.

[Basicervical ectopic goiter associated with a eutopic thyroid gland: a case report]. / Une association d'un goitre ectopique basi-cervical et d'une glande thyroïde eutopique: à propos d'un cas.

Thyroid gland is an endocrine gland playing a major role in energy and phosphocalcic metabolism, among others. It commonly occurs in the anterior cervical and pretracheal region. Ectopic thyroid is quite rare. It is dominated by ectopic basilingual thyroid. We here report the case of a patient with goiter in normal cervical position (eutopic) and ectopic thyroid tissue in basicervical position. Cervicotomy revealed the ectopic nodule and the diagnosis was confirmed by histology. This clinical case illustrates a differential diagnosis of cervical masses.

Case Report - Multinodular goiter in a patient with Congenital Hypothyroidism and Bannayan-Riley-Ruvalcaba syndrome: the possible synergic role of TPO and PTEN mutation.

We report the case of a paediatric female patient affected by Bannayan-Riley-Ruvalcaba syndrome (BRRS) and congenital hypothyroidism (CH) with homozygous mutation of the TPO gene. She underwent total thyroidectomy at the age of seven years because of the development of a multinodular goiter. BRRS patients present an increased risk of benign and malignant thyroid disease since childhood because of inactivating mutation of PTEN, an onco-suppressor gene. Instead, homozygous mutations in the TPO gene can be associated with severe forms of hypothyroidism with goiter; previous studies have described cases of follicular and papillary thyroid cancer in CH patients with TPO mutation despite a perfectly controlled thyroid function with Levothyroxine therapy. To our knowledge, this is the first case that describes the possible synergic role of coexisting mutation of both TPO and PTEN in the development of multinodular goiter underlining the importance of a tailored surveillance program in these patients, especially during childhood.

Large goiters and postoperative complications: does it really matter?

INTRODUCTION: Thyroidectomy is one of the most commonly performed surgical procedures worldwide. Although the mortality rate is currently approaching 0%, the incidence of complications in such a frequent surgery is not insignificant. The most frequent are postoperative hypoparathyroidism, recurrent injury, and asphyxial hematoma. The size of the thyroid gland has traditionally been considered one of the most important risk factors, but there is currently no study that analyzes it independently. The objective of this study is to analyze whether the size of the thyroid gland is an isolated risk factor for the development of postoperative complications. PATIENTS AND METHOD: A prospective review of all patients who underwent total thyroidectomy at a third-level hospital between January 2019 and December 2021 was conducted. The thyroid volume was calculated preoperatively using ultrasound and, together with the weight of the definitive piece, was correlated with the development of postoperative complications. RESULTS: One hundred twenty-one patients were included. When analyzing the incidence of complications based on the quartiles of weight and glandular volume, there were no significant differences in the incidence of transient or permanent hypoparathyroidism in any of the groups. No differences were found in terms of recurrent paralysis. No fewer parathyroid glands were visualized intraoperatively in patients with larger thyroid glands, nor did the number of them accidentally removed during surgery increase. In fact, a certain protective trend was observed with regard to the number of glands visualized and glandular size or in the relationship between thyroid volume and accidental gland removal, with no significant differences. CONCLUSION: The size of the thyroid gland has not been shown to be a risk factor for the development of postoperative complications, contrary to what has traditionally been considered.

Incidental papillary thyroid microcarcinoma in consecutive patients undergoing thyroid surgery for benign disease. A single center experience.

BACKGROUND: There has recently been an increase in the incidental histological diagnosis of papillary thyroid microcarcinoma (I-PTMC), that varies from 3.5% in autopsies studies, to 5.2% in thyroid specimens from thyroid surgery, up to 9.4% in patients from areas of endemic goiter. AIM: To evaluate the incidence and the histological characteristics of I-PTMC in patients undergoing thyroidectomy for benign thyroid diseases, and to evaluate sex, age, toxic and non-toxic goiter, Hashimoto's thyroiditis as potential risk factors. MATERIALS AND METHODS: Prospective observational study on 124 patients, median age 56.3±13.25sd range 24-80 years, 93(75%)F, 31(25%)M, with surgical indications for toxic and non-toxic uni/multinodular goiters, in pharmacological euthyroidism. An accurate histological examination (HE) of entirely embedding thyroid samples was performed to identify microscopic foci of I-PTCM. Logistic regression analysis of the abovementioned parameters was performed to identify the risk factors. RESULTS: Total incidence of I-PTMC was 15.3%(19/124), with F/M ratio 2:1. All I-PTMCs were intraparenchymal with an intact thyroid capsule; 68.5% were bilateral-multifocal, 21% unilateral-unifocal, 10.5% unilateral-multifocal; maximum diameter was <5mm in 57.9% and ≥5mm in 42.1%; 63.1% were follicular variant, 36.9% classical variant; intra-thyroid lymphatic invasion and lymph node infiltration of the central compartment and para-tracheal was found in the only patient with "tall-cell" classical variant. No risk factors was found. CONCLUSIONS: The incidence higher than that reported in the literature, is probably due to the accurate HE of entirely embedding thyroid samples, which is the most important tool to identify microscopic foci of I-PTCM. The highest reported rate of bilateral multifocality of the neoplasm recommend the total thyroidectomy as surgical treatment of choice, also in patients undergoing thyroid surgery for "presumptive" benign diseases. KEY WORDS: Benign Thyroid Disease, Incidental Papillary Thyroid Microcarcinoma, I-PTCM, Thyroid Surgery.

Large (>4 cm) Intrathyroidal Encapsulated Well-Differentiated Follicular Cell-Derived Carcinoma Without Vascular Invasion May Have Negligible Risk of Recurrence Even When Treated with Lobectomy Alone.

Background: Thyroid carcinoma >4 cm in size is staged as T3a. The current American Thyroid Association guidelines recommend subtotal/total thyroidectomy and consideration for postoperative radioactive iodine (RAI) treatment for these tumors. In this retrospective cohort study, we aimed to explore the clinical course of large encapsulated thyroid carcinoma without other risk factors. Methods: Eighty-eight patients with large (>4 cm) encapsulated well-differentiated thyroid carcinoma resected between 1995 and 2021 were included in this retrospective cohort study. Exclusion criteria were tall cell variant, any extent of vascular invasion, extrathyroidal extension (microscopic or gross), high-grade histology, noninvasive follicular thyroid neoplasm with papillary-like nuclear features (NIFTP), infiltrative tumors, positive resection margin, and cases with follow-up <1 year. The primary outcomes are risk of nodal metastasis at the initial resection, disease-free survival (DFS), and disease-specific survival (DSS). Results: The tumor histotype was follicular carcinoma (n = 18, 21%), oncocytic (Hurthle cell) carcinoma (n = 8, 9%), and papillary thyroid carcinoma (PTC; n = 62, 70%). Among PTC, 38 were encapsulated follicular variant, 20 classic type, and 4 solid variant. Four cases had extensive capsular invasion (CI), 61 (69%) had focal CI, whereas 23 did not have CI. Thirty-two cases (36%) were treated with lobectomy/hemithyroidectomy alone, and 55 patients (62%) did not receive RAI. Five patients had nodal metastasis at the time of primary resection, all of whom had classic-type PTC. The median follow-up period was 4.8 years (interquartile range: 3.2-9.7 years). No recurrence, being local, regional, or distant, was observed in the entire cohort, including those patients treated with lobectomy alone without RAI. The 10-year DFS and DSS were 100%, respectively. Conclusion: Large intrathyroidal encapsulated well-differentiated thyroid carcinoma without vascular invasion follow an extremely indolent clinical course with negligible risk of recurrence. Lobectomy alone without RAI may be the appropriate treatment strategy for this selected group of patients.

Anaesthetic challenges in a patient with acromegaly and multinodular goitre undergoing endoscopic pituitary surgery.

Acromegaly is a progressive systemic disorder which is common among middle-aged women. A functioning growth hormone-secreting pituitary adenoma is the most common cause. Anaesthesia for pituitary surgery in patients with acromegaly is challenging. Rarely, these patients may develop thyroid lesions that may compromise the airway. We present the case of a young man with newly diagnosed acromegaly caused by a pituitary macroadenoma complicated by a large multinodular goitre. The aim of this report is to discuss the perianaesthetic approach in patients with acromegaly with a high risk of airway compromise undergoing pituitary surgery.

Combination of treatments with transoral endoscopic thyroidectomy vestibular approach (TOETVA) for Graves' disease.

Although the success rates of non-surgical treatments for Graves' disease such as antithyroid medication and radioiodine ablation were good, there were still failure of treatments or intolerance for some patients. Traditional thyroid surgery could treat these patients but result in unaesthetic neck scars. Herein, we report the preliminary results of our combination of treatments with the transoral endoscopic thyroidectomy vestibular approach for Graves' disease. A retrospective review of patients who underwent the transoral endoscopic thyroidectomy vestibular approach for the treatment of different sizes of goiters between January 2019 and December 2020 was performed. The demographic and clinical data of patients were collected. All patients were followed up for > 12 months. Each patient's goiter size was determined using four grades-from 0 to 3. In total, 14 female patients receiving the combination treatment with > 1 year of follow-up and a median (range) age of 35 (20-48) years at surgery were included. There were two, three, four, and five patients with grade 0, 1, 2, and 3 goiters, respectively. The median (range) intraoperative blood loss was higher in grade 3 patients (100 [20-850] mL) than in grade 2 patients (20 [10-200] mL) and grade 1 and 0 patients (both < 10 mL) (p = 0.033). All patients had normal-looking necks with a euthyroid or hypothyroid status within 1 year. There were no complications, including re-operation for bleeding, hypoparathyroidism, vocal cord palsy, or infections. The designed combination treatment with the transoral endoscopic thyroidectomy vestibular approach for Graves' disease provides optimal cosmetic results with a high success rate.

Posterior Mediastinal Goiter Removal Through Cervical Incision.

Intrathoracic goiter when encountered can be treated by thyroidectomy using cervical incision, only occasionally requiring extra cervical approach. We are reporting one such case in a patient with pituitary macroadenoma with extension of the adenomatous goiter into the posterior mediastinum. It was removed through the cervical collar incision using a vessel sealing device. There were no intraoperative and postoperative complications during the procedure. The need for extra cervical incision should be decided on a case-to-case basis to avoid the increased morbidity associated with sternotomy and lateral thoracotomy incision.

Management of compression symptoms of thyroid goiters: Hemithyroidectomy is equally as successful as total thyroidectomy.

PURPOSE: Patients with thyroid goiters and compressive symptoms are treated with surgery. The adequate extent of this surgery for these cases remains unclear. In the current study, we analyze the effect of surgery, total thyroidectomy versus hemithyroidectomy, on the resolution of various compressive symptoms. MATERIALS AND METHODS: This retrospective analysis utilized the TriNetX Research Network to recognize adults with thyroid goiters treated surgically. International Classification of Diseases 10 (ICD10) was used to identify patients. Two groups were created based on surgical treatment, for either a hemithyroidectomy or total thyroidectomy. The primary outcomes were compression symptoms, including dysphagia, choking/globus sensation, dyspnea, cough, and hoarseness/dysphonia. RESULTS: This retrospective review included 45,539 subjects. Of these, 9293 had a partial thyroidectomy, and 36,246 had a total thyroidectomy. After propensity score matching was done for compression symptoms before surgery, there were 8280 patients in each group. There were no differences in symptoms between the matched groups, except for increased hoarseness and dysphonia after total thyroidectomy (RR, 95 % CI) (0.781, 0.67-0.91). Compression symptoms significantly decreased after surgical treatment in both the hemithyroidectomy and total thyroidectomy groups. CONCLUSIONS: Hemithyroidectomy is associated with efficacy similar to total thyroidectomy in reducing compression symptoms postoperatively. Hemithyroidectomy may be able to alleviate compressive symptoms with less surgical risk.

Ultrasound-guided microwave ablation combined with ethanol injection for the treatment of solitary nodular retrosternal goiter: a prospective study of 72 patients.

OBJECTIVES: We prospectively evaluated the efficacy and safety of microwave ablation (MWA) combined with ethanol injection (EI) in solitary nodular retrosternal goiters (RSGs). METHODS: From November 2018 to November 2020, 72 patients diagnosed with solitary nodular RSG were treated by ultrasound-guided MWA with EI. Patients were followed up at 1, 3, 6, and 12 months and every 6-12 months thereafter by ultrasound and contrast-enhanced ultrasound (CEUS). The nodule volume, volume reduction ratio (VRR), neck circumference, symptom score, and cosmetic grading score were recorded to evaluate the treatment efficacy. RESULTS: All patients successfully underwent treatment. The mean initial nodule volume was 71.25 mL ± 61.61 mL, which decreased significantly to 7.47 mL ± 9.19 mL at a mean follow-up time of 23.89 months ± 7.66 months (range 15-39 months) with a mean VRR of 90.99% ± 7.52%. The neck circumference, symptom score, and cosmetic grading score significantly decreased from 36.94 cm ± 3.04 cm to 35.06 cm ± 2.84 cm, from 3.78 ± 1.19 to 0.36 ± 0.63, and from 3.42 ± 0.76 to 1.13 ± 0.37, at the 12 months after treatment, respectively (all 7 p < 0.001). Of all the nodules, eight (11.1%) received a second ablation. No major complications occurred. CONCLUSION: Ultrasound-guided MWA combined with EI is an effective and safe treatment for solitary nodular RSG and may be a potential alternative to surgery in selected patients, especially for those who are ineligible or unwilling to receive surgical treatment. KEY POINTS: • MWA combined with EI is an effective and safe approach for the treatment of solitary nodular RSG. • This treatment should be conducted by experienced physicians. • It provides a potential alternative to surgery for solitary nodular RSG in patients who are ineligible or unwilling to receive surgical treatment.