Intrapancreatic accessory spleen

Intra pancreatic accessory spleen mimicking pancreatic insulinoma: a case report

Accessory spleens are a congenital anomaly caused by abnormal fusion during embryonic development, leading to the presence of splenic tissue in unusual locations, such as the tail of the pancreas. Their pronounced arterial enhancement can cause them to be mistaken for a neuroendocrine tumor, particularly an insulinoma. We report the case of a 61-year-old patient with recurrent hypoglycemia who was referred for suspected neuroendocrine tumor.

Accessory sple­en in a dog: Macroscopic and microscopic findings

Accessory spleens are one or more areas of normal ectopic splenic tissue of variable size supplied by the branches of the splenic artery. A 7 year-old mixed breed male dog was fixed for use as a model in anatomy hall. During the abdominal dissection, the gross examination showed a 6.3×3.1×1 cm mass that was situated on the caudodorsal border of the spleen. Its appearance and firm consistency were similar to those of spleen. There was no connection between the spleen and this mass. It was supplied by accessory splenic artery. Microscopic examination of the mass revealed some structures similar to spleen.

68Ga-Prostate-Specific Membrane Antigen Uptake in a Pancreatic Neuroendocrine Tumor

We present a 60-year-old man with known prostate cancer treated with robot-assisted radical prostatectomy. Prostate-specific antigen levels did not decline accordingly, and a second Ga-PSMA PET/CT demonstrated a new focus with high Ga-PSMA uptake in the pancreatic tail. A subsequent CT scan did not display the lesion as a typical pancreatic tumor, and a spleen scintigraphy was also negative excluding an ectopic intrapancreatic accessory spleen. Ga-DOTATOC PET/CT showed uptake in the same area of the pancreatic tail consistent with a neuroendocrine tumor. This case illustrates that neuroendocrine tumors can be important pitfalls in Ga-PSMA PET/CT performed in prostate cancer patients.

Laparoscopic spleen-preserving pancreatic resection for intrapancreatic accessory spleen: Case report

INTRODUCTION

Intrapancreatic accessory spleen (IPAS) has been rarely noted radiologically because the spatial resolution of conventional images was low. The infrequent presence of the accessory spleen in the pancreatic tissue could lead to inappropriate diagnosis, thereby necessitating a therapeutic approach. The present study reported such cases and summarized the available imaging findings to reduce unnecessary invasive surgeries.

PATIENT CONCERNS

The patient's complaint was "a pancreatic mass was found for half a month."

DIAGNOSIS

IPAS was eventually diagnosed by pathology.

INTERVENTIONS

Laparoscopic spleen-preserving pancreatic resection.

OUTCOMES

Postoperative course was uneventful and the patient was discharged from our hospital after 10 days.

CONCLUSIONS

When an asymptomatic pancreatic mass is detected, the diagnosis of IPAS should not be excluded, especially if the lesion has the same imaging features as the spleen. As a definite diagnosis of IPAS is difficult by a single examination, multiple techniques might be essential.