Related Experiment Video
Updated: Jan 23, 2026

A Novel Human Epithelial Enteroid Model of Necrotizing Enterocolitis
Published on: April 10, 2019
Sterile necrotizing and non-necrotizing granulomas in a heart transplant patient with history of PTLD: A unique
Nicholas Piening1, Saxena Saurabh2, Armando Salim Munoz Abraham2
1Saint Louis University School of Medicine, United States.
Introduction:
Posttransplant lymphoproliferative disease (PTLD) is a known complication in patients with solid organ transplant. It can present as localized or disseminated tumor. The cornerstone of management consists of reduced immunosuppression (RI). In select cases, localized disease can potentially be curative with surgical excision.
Presentation Of Case:
Here we present a case of a 19-year-old female with orthotopic heart transplant with two episodes of recurrent PTLD. After the second episode she was found to have asymptomatic splenic lesions which were refractory to RI and chemotherapy. She subsequently underwent splenectomy that showed sterile necrotizing and non-necrotizing granulomas with no evidence of PTLD.
Discussion:
Based on our literature search this is the first ever reported case of sterile granulomas in a patient with recurrent PTLD which could potentially be diagnosed with minimally invasive biopsy rather than diagnostic splenectomy.
Conclusion:
This report is an attempt to create awareness regarding potential for presence of sterile granulomas in patients with recurrent PTLD and discuss the use of percutaneous biopsy before splenectomy.
Related Concept Videos
What is Evolutionary History?
Other Unique Bacteria
Second Uniqueness Theorem
In contrast, consider that the electric field is non-unique and apply Gauss's law in divergence form in the region between the conductors and the integral form to the surface...
History of Microbiology
Life Histories
Cleaning, Sterilization, and Disinfection
Cleaning
The cleaning process usually involves using water with detergents or enzymatic cleaner and removing foreign material from objects and surfaces, including organic material such as body fluids or inorganic material like soil. Cleaning is performed before high-level disinfection and sterilization because foreign materials on the cover of the devices interfere with process...

