Related Experiment Video
Updated: Jun 28, 2026

Robot-assisted Partial Splenectomy
Published on: January 2, 2026
[Sclerosing angiomatoid nodular transformation of the spleen]
Olfa Chouchane Mlik1, Ségolène Lardenois, Rémy Salmon
1Département de pathologie, institut Curie, 26 rue d'Ulm, Paris cedex 05, France.
Abstract:
Sclerosing angiomatoid nodular transformation (SANT) of the spleen is a complex vascular lesion recently described. We present a case of SANT occurring in a 49-year-old woman who was treated for choroid melanoma. The computed tomography abdominal scan revealed an asymptomatic mass in the spleen. Splenectomy was performed due to the risk of metastasis from the melanoma. The histopathologic examination revealed an angiomatoid lesion composed of three types of vessels recapitulating the normal composition of the red pulp of the spleen. In this report, we discuss the pathology of this lesion and the differential diagnosis of SANT with other lesions such as hemangiomas, hamartomas and inflammatory pseudotumors.
Related Concept Videos
Secondary Lymphoid Organs
The spleen is a vital organ in the lymphatic system, nestled in the upper left side of the abdomen. It is composed of two primary regions: the red pulp and the white pulp, each having distinct functions. The red pulp performs a significant role in blood filtration. It efficiently purges the blood of old or damaged red blood cells and...
Cirrhosis I: Introduction
Development of the Lymphatic System
The first lymph sacs to form are the paired jugular lymph sacs located at the junction of the internal jugular and subclavian veins. From these sacs, lymphatic capillary plexuses extend to the thorax, upper limbs, neck, and head, eventually forming lymphatic vessels. Each jugular lymph sac maintains a...
Atherosclerosis I: Introduction
