Background: The purpose of this study was to develop and evaluate radiotracer-guided localization of small or ill-defined pulmonary nodules for thoracoscopic excisional biopsy.
Methods: This study consisted of two parts: a laboratory study in rats to determine the most suitable radiotracer, and a pilot study in humans to determine the feasibility of radiotracer lung nodule localization. The right lung of 12 rats was injected with a technetium 99m (Tc 99m) based radiotracer solution: 4 each with macroaggregated albumin (MAA), unfiltered sulfur colloid (SC), and pertechnetate (TcO(4)). Serial imaging was performed using a small animal gamma camera for 4 hours following injection. In 13 patients, computed tomographic (CT) guided injection of Tc 99m MAA solution was made into or adjacent to a pulmonary nodule suspicious for primary lung cancer. Gamma probe localization of the nodule was performed during subsequent thoracoscopic surgery.
Results: In the animal model, MAA provided more precise localization than SC or TcO(4) and was selected for the human study. In the human series, all 13 patients had successful gamma probe localization of their lesion. There were no radiologic or surgical complications. Seven of 13 nodules were malignant, and five of these nodules were stage IA primary lung carcinomas.
Conclusions: Computed tomographic-guided radiotracer localization of small or ill-defined pulmonary nodules using Tc 99 m MAA before thoracoscopic excisional biopsy is feasible and may make excisional biopsy the preferred management strategy for the management of small pulmonary nodules in patients at high risk for malignancy.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.athoracsur.2003.10.099 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Suspect dyskeratotic neoformations in a 7-year-old child with keratitis-ichthyosis-deafness syndrome: diagnostic, surgical and wound care management.
Dermatol Reports
November 2024
Plastic Surgery Unit, Department of Neuroscience, University of Padua.
Keratitis-ichthyosis-deafness syndrome (KID) is a rare genetic disorder characterized by the triad of hyperkeratosis, ichthyosis, and congenital prelingual sensorineural deafness, with less than 100 cases described in the literature. In addition to many other extra-cutaneous manifestations, these patients are burdened by two principal increased risk factors involving the skin: the risk of developing infections and the risk of developing malignant skin tumors, especially Squamous Cell Carcinoma and Trichilemmal tumors. We present the case of a 7-year-old girl with a unique genetic variant described to date, who developed 4 dyskeratotic neoformation.
View Article and Find Full Text PDFNon-Hodgkin Lymphoma of the External Auditory Canal: A Rare Primary Involvement.
Cureus
December 2024
Internal Medicine Department, Unidade Local de Saúde do Nordeste, Bragança, PRT.
The authors describe a rare case of non-Hodgkin lymphoma (NHL) with primary involvement of the external auditory canal (EAC) and subsequent dissemination to the central nervous system, initially manifesting as a benign ear infection. This case highlights the importance of considering differential diagnoses in patients with persistent or worsening symptoms unresponsive to empirical treatment. A 53-year-old man presented with a one-week history of aural fullness, otalgia, and otorrhea in the left ear.
View Article and Find Full Text PDFDigital Papillary Adenocarcinoma at the Site of 5 Years of Recurrent Paronychia: Case Report and Literature Review.
Case Rep Oncol Med
December 2024
Hand and Upper Extremity Surgery, Barrington Orthopedic Specialists, Schaumburg, Illinois, USA.
Article Synopsis
- Digital papillary adenocarcinoma (DPA) is a rare and often misdiagnosed malignant tumor, commonly mistaken for benign conditions, leading to delayed diagnosis and treatment.
- A 57-year-old man with recurrent finger infections was ultimately diagnosed with DPA after a surgical evaluation and biopsy revealed both infection and the tumor, necessitating surgical removal.
- Accurate diagnosis is vital due to the tumor's tendency for recurrence and metastasis, particularly to the lungs and lymph nodes, and current treatment primarily involves surgical excision with focus on achieving negative margins.
Management of mucogingival defect following excision of multiple gingival squamous cell papillomas using VISTA - A case report with 24 months follow-up.
J Indian Soc Periodontol
December 2024
VISTA Institute for Therapeutic Innovations, California, USA.
Oral squamous cell papilloma is a benign proliferation of the stratified squamous epithelium, associated with the human papillomavirus (HPV). The clinical manifestation includes papillary or verrucous exophytic mass. Complete excision of the lesion, including normal margins, followed by histopathological examination is the treatment of choice.
View Article and Find Full Text PDFBeneficial Effects of Tilapia Fish Skin on Excisional Skin Wound Healing in a Type I Diabetic Rat Model.
J Biomed Mater Res B Appl Biomater
January 2025
Department of Surgery, Anesthesiology and Radiology, Faculty of Veterinary Medicine, Assiut University, Assiut, Egypt.
IntroductionProlonged hyperglycemia in diabetic patients often impairs wound healing, leading to chronic infections and complications. This study aimed to evaluate the potential of fresh Tilapia fish skin as a treatment to enhance wound healing in diabetic rats. MethodsThirty-nine healthy adult albino rats, weighing between 150 and 200 g, were divided into three groups: non-diabetic rats with untreated wounds [C-], diabetic rats with untreated wounds [C+], and diabetic rats treated with fresh Tilapia skin [TT].
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!