Detection Of Accessory Splenic Tissue On Liver/Spleen Colloid Scan - Another Marvel Of SPECT-CT

Area of Science:

• Nuclear Medicine
• Radiology
• Gastroenterology

Background:

• Accessory splenic tissue is a common finding post-splenectomy and can also be congenital.
• Recurrence of accessory spleens is noted in conditions like idiopathic thrombocytopenic purpura (ITP) after splenectomy.
• Conventional imaging (CT, ultrasound) has limitations in definitively diagnosing splenic pathologies and accessory spleens.

Purpose of the Study:

• To highlight the utility of hybrid nuclear imaging, specifically 99mTc labelled liver/spleen colloid scans, in diagnosing accessory splenic tissue.
• To present a case where colloid scan successfully localized suspected accessory splenic tissue in a patient with a history of repeated surgeries for ITP.

Main Methods:

• Utilized 99mTc labelled liver/spleen colloid scintigraphy.
• Correlated scintigraphic findings with clinical history and previous imaging.

Main Results:

• The 99mTc colloid scan precisely localized the suspected accessory splenic tissue.
• This imaging modality provided both anatomical and functional information crucial for diagnosis.

Conclusions:

• Hybrid nuclear imaging, particularly 99mTc colloid scans, is a valuable tool for detecting accessory splenic tissue, especially when conventional methods are limited.
• This technique is effective in managing recurrent accessory spleens in patients with ITP and a history of splenectomy.