Diffuse intra-abdominal splenosis presenting as carcinomatosis exhibiting positron emitted tomography hypermetabolic activity

Splenosis Mimicking Lymphoma Relapse Confirmed by 18F-FDG PET/CT and Tc-99m Nano-colloid Scintigraphy Thirty Years After Splenectomy for Trauma

Splenosis is implantation of the splenic tissue in the abdominal region or elsewhere in the body as a consequence of trauma or splenectomy, which might mimic intra-abdominal involvement of several malignancies. This case report presents a patient with abdominal implants without ¹⁸F-FDG accumulation confirmed to be splenosis by Tc-99m nano-coloid scintigraphy.

Gallbladder splenosis: a hereto unreported mimicker of a gallbladder neoplasm

Splenosis is a completely benign entity that can mimic a primary mass or metastasis. Herein we report the first known case of gallbladder splenosis in a 49-year-old woman with an extensive surgical and medical history. Cross-sectional computed tomography and MRI demonstrated a single mass arising from the gallbladder fundus. Revelation of splenectomy, confirmed to be traumatic from medical records, raised the suspicion for splenosis. The diagnosis was confirmed with a Technecium-99m-labeled heat-damaged blood cell scan, considered the gold-standard for detection of ectopic splenic tissue.