Polymethylmethacrylate (PMMA) is a synthetic polymer with multiple uses in industry and medicine. In dermatology, it is primarily used as an injectable implant for the correction of rhytides. We report the first case of an adverse event caused by the recreational use of PMMA in the form of an invisible tattoo granuloma.
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Accuracy evaluation of preoperative indocyanine green tattooing and intraoperative colonoscopy in determining surgical resection margins for left-sided colorectal cancer: a retrospective study in Korea.
J Minim Invasive Surg
March 2025
Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Korea.
Purpose: We aimed to evaluate the precision of preoperative colonoscopic tattooing and intraoperative colonoscopic tumor localization in determining distal surgical margins for left-sided colorectal cancer surgery.
Methods: This retrospective study included 30 patients who underwent laparoscopic colorectal surgery, preoperative colonoscopic tattooing, and intraoperative colonoscopic localization for colorectal cancer at our center between July 2020 and March 2024. Clinical data were collected, and the precision of these methods was assessed by measuring the differences between the target resection margin and the actual pathological resection margin.
An Invisible Dermal Nanotattoo-Based Smart Wearable Sensor for eDiagnostics of Jaundice.
ACS Nano
October 2024
Nanosensor Bioplatforms Laboratory, Chemistry and Chemical Engineering Research Center of Iran, Tehran 14335-186, Iran.
Despite substantial progress in the diagnosis of jaundice/hyperbilirubinemia as the most common disease and cause of hospitalization of newborns, on the eve of Industry/Healthcare 5.0, the development of accurate and reliable wearable diagnostic sensors for noninvasive smart monitoring of bilirubin (BIL) is still in high demand. Aiming to fabricate a smart wearable sensor for early diagnosis of neonatal jaundice and its therapeutic monitoring, we here report a fluorescent dermal nanotattoo that further coupled with an IoT-integrated wearable optoelectronic reader for minimally invasive, continuous, and real-time monitoring of BIL in interstitial fluid.
View Article and Find Full Text PDFPreoperative localization of potentially invisible colonic lesions on the laparoscopic operation field: using autologous blood tattooing.
Ann Coloproctol
June 2024
Department of Surgery, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Suwon, Korea.
Article Synopsis
- Purpose
- : The study investigates the use of autologous blood tattooing as a method for preoperative colonoscopic (POC) localization in patients undergoing elective laparoscopic colectomy for early colon cancer, addressing the drawbacks of traditional dye methods.
- Methods
- : Researchers conducted POC autologous blood tattooing on patients with early colon cancer or other non-resectable colonic neoplasms, using saline injections and hemoclips for localization.
- Results
- : In a study of 45 patients, the autologous blood tattooing method proved to be safe, with all localization sites visible during surgery and no significant complications observed, indicating the potential for this method to replace traditional dyes in clinical practice.
Prospective evaluation of patient-reported outcomes of invisible ink tattoos for the delivery of external beam radiation therapy: the PREFER trial.
Front Oncol
March 2024
Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY, United States.
Introduction: Invisible ink tattoos (IITs) avoid cosmetic permanence of visible ink tattoos (VITs) while serving as more reliable landmarks for radiation setup than tattooless setups. This trial evaluated patient-reported preference and feasibility of IIT implementation.
Methods And Materials: In an IRB-approved, single institution, prospective trial, patients receiving proton therapy underwent IIT-based treatment setup.
Surgical Tattoos in Infrared: A Dataset for Quantifying Tissue Tracking and Mapping.
IEEE Trans Med Imaging
July 2024
Quantifying performance of methods for tracking and mapping tissue in endoscopic environments is essential for enabling image guidance and automation of medical interventions and surgery. Datasets developed so far either use rigid environments, visible markers, or require annotators to label salient points in videos after collection. These are respectively: not general, visible to algorithms, or costly and error-prone.
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