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"Singh, Meeta"
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An uncommon site for papillary thyroid carcinoma metastasis: a case of breast involvement
2025
Background
Papillary thyroid carcinoma (PTC) is a slow-growing neoplasm with an overall favorable prognosis, frequently disseminated via lymphatic channels in the cervical region. The occurrence of thyroid carcinoma metastasizing to the breast is infrequent, with the mechanism of dissemination remaining unclear.
Case summary
A 63-year-old female presented with a painful, progressive mass on the right breast upper outer quadrant for 3 months with bloody discharge from the nipple and cervical lymphadenopathy level 2–5 by axillary lymphadenopathy and shortness of breath. On examination, 8 cm ×6 cm, a well-defined lump was palpable on the right breast, with soft to firm consistency. The swelling was fixed to the underlying tissues. The patient had undergone a total thyroidectomy for papillary carcinoma 10 years back and another surgery for pre-sternal thyroid swelling 3 years back which was also papillary carcinoma. Fine needle aspiration cytology (FNAC) was inconclusive and a core cut biopsy from the breast was taken which was suggestive of papillary thyroid carcinoma. Henceforth a Positron emission tomography (PET) scan was done that showed increased fluorodeoxyglucose (FDG) uptake by the lesion, cervical and axillary lymph nodes. The patient was advised for radioactive iodine ablation and palliation.
Discussion
Papillary thyroid cancer (PTC) is the most common thyroid malignancy, often spreading via lymphatics. Regional metastasis to the neck is frequent, though metastasis outside the deep cervical chain is rare. Distant metastases occur in 1% of PTC patients mainly in the lungs and bones. The precise mechanisms enabling the spread of thyroid carcinoma to the breast remain insufficiently understood. A small subset of medullary thyroid carcinomas has been observed to display metastasis to the breast, which majorly disseminates by hematogenous route. Ours is a rare case of PTC showcasing metastasis to the breast. Proposed mechanisms encompass dissemination via intraoperative seeding and lymphatic routes.
Conclusion
Metastasis of papillary thyroid carcinoma to the breast is very rare in the current body of literature; however, a small number of cases of medullary thyroid carcinomas in the breast have been identified, predominantly disseminated via the hematogenous route. Therefore, the identification of a mass in the breast may warrant consideration as a metastatic lesion in the setting of pre-existing thyroid carcinoma. Radioactive iodine ablation (RAI) and radiotherapy might be recommended for palliation.
Journal Article
Giant villous adenoma of rectum- what is the malignant potential and what is the optimal treatment? A case and review of literature
by
Vindal, Anubhav
,
Lal, Pawanindra
,
Singh, Meeta
in
Adenoma
,
Adenoma, Villous - epidemiology
,
Adenoma, Villous - pathology
2019
Introduction
Villous adenomas are dubiously benign lesions, which are difficult to interpret because of their malignant potential. Distal villous adenomas present with bleeding or mucus discharge. Giant adenomas are not amenable for endoscopic or transanal resection. Only few isolated cases have been reported by laparoscopic resection. We present our case of a circumferential giant villous adenoma of the rectum managed successfully by laparoscopic ultra-low anterior resection with colo-anal anastomosis with a review of literature in regard to their malignant potential.
Case report
A 62-year-old lady presented with complaints of painless bleeding per rectum and a fleshy mass protruding from the anal canal which on digital rectal examination appeared a large soft velvety flat mass with mucus discharge. Colonoscopy showed circumferential irregular, friable, edematous mucosa in rectum extending for 15 cm. Computed tomography showed a large heterogeneously enhancing polypoid mass lesion in the rectal wall involving the entire rectum. The patient underwent laparoscopic low anterior resection with colo-anal anastomosis and protecting loop ileostomy. Histopathological examination of the resected specimen revealed villous adenoma of the rectum with moderate to severe dysplasia.
Discussion
Villous adenomas are sessile growths lined by dysplastic glandular epithelium, whose risk of malignancy is especially high up to 50% when greater than 2 cm in size. Large size, villous content, and distal location are all associated with severe dysplasia in colorectal adenomas. Large villous rectal tumors, particularly of circumferential type pose a great challenge for endoscopic or transanal removal. Henceforth, open or laparoscopic surgery is required for these cases.
Conclusion
Giant rectal villous polyps are usually unresectable by endoscopic methods or transanal endoscopic microsurgery and are associated with a high rate of unsuspected cancer which requires a formal radical oncologic resection. As per current data, the combined risk of dysplasia/malignancy is about 83% with 50% risk of dysplasia and frank malignancy in 33% of cases of giant rectal villous adenomas of more than 8 cm in size. Laparoscopic colorectal resection is safe and effective.
Journal Article
Evaluation of immunocytochemistry on destained giemsa stained smears as an alternative to conventional technique
2022
Introduction: Protocol for immunocytochemical (ICC) staining in May-Grünwald Giemsa (MGG)-stained smears has been difficult to establish. It is the need of the hour to be able to use prestained slides for ICC in specific cases to deliver timely diagnoses and reduce inconvenience to patients. Aims and Objectives: To evaluate and compare the use of MGG-stained smears for the purpose of ICC, after de-staining and saline rehydration to that of routine standard ICC. Materials and Methods: A prospective study was conducted on 40 FNAC samples: 25 cases of breast disease and 15 cases of reactive lymphoid hyperplasia known to express pancytokeratin and leukocyte common antigen (LCA)/CD45, respectively. Air-dried smears of each case were stained by standard MGG stain and after the report was dispatched, one smear was selected and sent for ICC. The smears were analyzed to determine the overall result and grade each smear semi-quantitatively with respect to staining-intensity, stain-localization, staining-uniformity, counter-staining, and background-staining. Observations and Results: The proposed protocol was inferior to conventional ICC in all the parameters, more pronounced in pancytokeratin than LCA/CD45. Only 8% of air-dried smears stained for pancytokeratin showed optimal stain intensity (as opposed to 44% of wet-fixed smears), whereas only 14.3% of air-dried smears were optimally stained for LCA (as opposed to 85.7% of wet-fixed smears). Conclusion: The proposed protocol of de-stained Giemsa smears as an alternative to conventional technique for ICC was unsuccessful in giving satisfactory results.
Journal Article
An inguinal enigma: Myxoid liposarcoma in a female
2023
Myxoid liposarcoma of the inguinal region is rare, can mimics an inguinal hernia. Any swelling in the inguinal region, that is partially reducible, fluctuant, soft, and without any signs of bowel obstruction should be evaluated further. Inguinal swellings in women are uncommon in comparison to men. These masses can arise from various locations in the inguinal region. Here, we present a rare case of myxoid liposarcoma of the inguinal region in a female presenting as a fluctuant, partially reducible swelling mimicking inguinal hernia.
Journal Article
Cytological diagnosis of malignant mesothelioma: A case series
2022
Background: Mesotheliomas are neoplasms of the serosal lining of the body cavities. Diagnosis requires a multimodal approach of clinical findings, cytology, and histopathology with immunohistochemistry (IHC). The published sensitivity of cytology for diagnosing mesothelioma ranges from 30% to 75%. Aim and Objectives: This study aimed to calculate the incidence of malignant mesothelioma (MM) at our institute and to study the cytological features of MM. Materials and Methods: A retrospective study of pleural, peritoneal, and pericardial fluids submitted at our institute was done. The duration of the study was 8 years (2011-2019). Apart from examining Giemsa smears, a panel of immunocytochemical (ICC) and cell block immunohistochemical (IHC) markers was applied to achieve the diagnosis. These included calretinin, mesothelin, CK5/6, Hector Battifora mesothelial cell antibody (HBME), WT1, MOC31, CK7 and CK20. Histopathological correlation was done wherever possible. Result: In the present study, we compiled four cases of MM over 8 years diagnosed on serous effusion cytology and confirmed by immunocytochemistry (ICC)/cell block immunohistochemistry (IHC)/biopsy. This indicates a rare incidence of MM. The Cytological features of MM were studied. Conclusion: The diagnosis of MM is difficult, especially cytologically. It was found to be a rare entity in the malignant cases diagnosed on effusion cytology.
Journal Article
How Sleep Affects Recovery and Performance in Basketball: A Systematic Review
by
Bird, Stephen P.
,
Huyghe, Thomas
,
Calleja-González, Julio
in
Basketball
,
Circadian rhythms
,
Medical Subject Headings-MeSH
2022
Background: Sleep is considered an essential component related to physiological and psychological recovery in athletes and particularly in basketball, given the impact of condensed travel and game schedules on player health and performance. Objective: The aim of this systematic review is to examine studies published to date on sleep and basketball performance. Methodology: All scientific articles that reported a relationship between sleep and its possible impact on performance in basketball are included. The research processes followed the PRISMA criteria, and the relevant articles were extracted (PubMed, WOS, Scopus) as of December 31, 2021. Results: Twenty-eight articles were selected for inclusion and data extraction, with 27 demonstrating that sleep is a vital component in the recovery of basketball players and their corresponding on-court performance. Three central themes that we identified: (1) the quality and extension of sleep (the better quality and more extension of sleep, better performance and lower probability of injury); (2) influence of the players circadian rhythm (travel and game scheduling do not currently facilitate or take this into account); and (3) higher training loads and/or increased stress may jeopardize a subsequent good night’s sleep, which should be taken into account when scheduling practices and workouts. Conclusion: The current systematic review regarding sleep and basketball performance and highlights that there is a strong relationship between both variables. Collectively, the evidence supports the critical influence of sleep on player recovery and basketball performance and risk for injury.
Journal Article
Arousability and Fall Risk During Forced Awakenings From Nocturnal Sleep Among Healthy Males Following Administration of Zolpidem 10 mg and Doxepin 6 mg: A Randomized, Placebo-Controlled, Four-Way Crossover Trial
by
Durrence, Heith
,
Tran, Kieulinh Michelle
,
Drake, Christopher L.
in
Accidental Falls
,
Adult
,
Antidepressants
2017
Abstract
Study Objectives:
To examine and compare the arousability threshold and fall risk upon awakening of doxepin (6 mg) versus zolpidem (10 mg).
Methods:
A total of 52 healthy adult males were included in a double-blind, placebo-controlled, four-way crossover study. The experimental procedure included four nights with polysomnography in the lab (zolpidem, doxepin, and their respective placebo conditions). Arousability was measured using an auditory awakening threshold delivered at the peak-plasma concentration for the active hypnotics and at matched times for the respective placebo conditions. Fall risk during the night was measured following awakening using the Berg Balance Scale and the Tandem Walk Task.
Results:
Both arousability and fall risk were lower in the doxepin condition compared to the zolpidem condition. Furthermore, arousability and fall risk for doxepin did not differ significantly from the placebo conditions. A significantly greater proportion of participants in the zolpidem condition (63.5%) did not wake until receiving the loudest tone (110 dB) as compared to the doxepin (17.6%) and placebo conditions (17.3%, 5.8%).
Conclusions:
Results suggest that zolpidem has greater risks for balance and awakening threshold compared with low-dose doxepin. Future prospective studies should extend results to clinical samples with population-level risk of injury and arousability.
Journal Article