A spontaneous hematoma arising within an intrapancreatic accessory spleen

Rational: Hematoma arising within an intrapancreatic accessory spleen (IPAS) is an extremely rare pathological entity. Patient concern: We present the case of a 39-year-old man with acute abdominal pain. Diagnoses: The patient was initially diagnosed as pancreatic cystic neoplasm according to CT and MRI imaging. Interventions: Distal pancreatectomy was conducted because of the possibility of malignancy. Outcomes: Surgical resection showed that the lesion was a hematoma in an IPAS. Lessons: Our case indicated that the differential diagnosis of hematoma in IPAS should be born in mind for cases with cystic neoplasm in tail of pancreas and an epidermoid cyst arising within an intrapancreatic accessory spleen (ECIAS).

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