Epithelioid angiosarcoma of the duodenum: a case report

Epithelioid angiosarcoma of the stomach

A 86-year-old man presented with a 2-month history of epigastric pain. The patient denied nausea, vomiting, hematochezia, or hematemesis. Physical examination on admission showed tenderness beneath the xiphoid process, with a palpable hard mass. Abdominal CT revealed a huge irregular inhomogeneous low density mass between liver and stomach, with moderate enhancement.

Primary angiosarcoma of the Pancreas - A case Report and review of the literature

BACKGROUND

Angiosarcomas are malignant neoplasms that originate from endothelial cells. The symptoms exhibit a non-specific nature, and achieving a preoperative diagnosis is frequently challenging. They are seldom encountered in the abdomen, and their occurrence in the pancreas is even rarer.

METHODS

Here we document a 67-year-old man with pancreatic angiosarcoma and analyse the literature to outline the clinicopathologic characteristics of this rare phenomenon.

RESULTS

This patient with family history of pancreas cancer presented with abdominal pain, and the CT-scan revealed a 4 cm mass at the neck of the pancreas but CA19-9 was normal. Radiologic findings were unusual for ordinary pancreas cancer. Fine-needle aspiration biopsy through endoscopic ultrasound revealed "undifferentiated malignant cells for which the diagnosis of "carcinoma" was favoured. Total pancreatectomy, splenectomy and portal vein reconstruction were performed and epithelioid angiosarcoma were diagnosed. Despite an uneventful postoperative period, discharge on postoperative day 8 without any complications, as well as diligent post-discharge clinical care, the patient died 65 days postoperatively, attributed to the presence of extensive metastasis. A comprehensive literature search has identified a limited number of documented cases of primary pancreatic angiosarcoma, with only ten cases reported to date.

CONCLUSIONS

Pancreatic angiosarcomas are very rare and prone to misdiagnosis. The formation of a more demarcated but high-grade tumour with necrosis is a feature that distinguishes angiosarcomas from ordinary carcinomas of this organ. Pathologic diagnosis is also highly challenging closely resembling undifferentiated carcinomas. Angiosarcomas are highly aggressive when they occur in the pancreas. Prompt diagnosis at an early stage is crucial as surgery with curative intent serves as the primary treatment approach.

Primary small intestine angiosarcoma mimicking Crohn's disease

A man in his 40s presented to an emergency department after experiencing worsening abdominal pain for 2 days. Contrast-enhanced CT of the abdomen and pelvis revealed circumferential mural thickening and luminal narrowing of the distal ileum and upstream dilatation of the small intestine, indicating small intestine obstruction. This prompted emergency laparotomy, where two lesions in the distal ileum were identified as the source of his bowel obstruction and resected. Immunohistochemistry of the resected segment revealed a primary small intestine angiosarcoma acting positively for vascular markers ERG and CD31. A subsequent positron emission tomography (PET) scan revealed positive mediastinal metastatic lymphadenopathy without organ metastases.Following his surgery, the patient recovered well and was promptly referred to an oncology unit at a specialised health centre for further treatment. Primary small intestine angiosarcoma is a rare entity in which patients present with non-specific symptoms requiring prompt tissue diagnosis to facilitate multidisciplinary management.

Multiple epithelioid angiosarcoma of stomach and small intestine with multiple lymph node metastases: A case report

RATIONALE

Angiosarcoma is a mesenchymal soft tissue sarcoma with a tendency for vascular endothelial differentiation. It is highly malignant with a poor prognosis but has a low incidence. Epithelioid angiosarcoma of the gastrointestinal tract is rare, and simultaneous multiple lesions of the stomach and small intestine are even rarer. It is easy to be misdiagnosed clinically. We report on a case of preoperative misdiagnosis of gastric cancer and postoperative diagnosis of epithelioid angiosarcoma with multiple lymph node metastases.

PATIENT CONCERNS

A 75-year-old patient who was admitted to the hospital because of fatigue, melena and dysuria for >1 month.

DIAGNOSIS, INTERVENTIONS AND OUTCOMES

Gastroscopy revealed gastric fundus ulcer and the biopsy revealed poorly differentiated adenocarcinoma of the fundus. We performed a radical gastrectomy for gastric cancer during which multiple ulcers were found in the jejunum and resected. Postoperative pathology showed multiple epithelioid angiosarcoma in the stomach and small intestine with lymph node metastases. The patient did not receive further treatment and died 2 month after the surgery.

LESSONS

Gastrointestinal epithelioid angiosarcoma is one of the differential diagnoses of gastrointestinal adenocarcinoma and surgery is the main treatment. The lymph nodes are one of the main sites of metastasis.

Multiple epithelioid angiosarcoma of stomach and small intestine with multiple lymph node metastases: A case report.. [DOI: 10.21203/rs.3.rs-2587142/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0]

Background Angiosarcoma is a mesenchymal soft tissue sarcoma with a tendency for vascular endothelial differentiation. It is highly malignant with a poor prognosis but has a low incidence. Epithelioid angiosarcoma of the gastrointestinal tract is rare, and simultaneous multiple lesions of the stomach and small intestine are even rarer. It is easy to be misdiagnosed clinically. We report on a case of preoperative misdiagnosis of gastric cancer and postoperative diagnosis of epithelioid angiosarcoma with multiple lymph node metastases. Case presentation A 75-year-old patient who was admitted to the hospital because of fatigue, melena and dysuria for > 1 mo. Gastroscopy revealed gastric fundus ulcer and the biopsy revealed poorly differentiated adenocarcinoma of the fundus. We performed a radical gastrectomy for gastric cancer during which multiple ulcers were found in the jejunum and resected. Postoperative pathology showed multiple epithelioid angiosarcoma in the stomach and small intestine with lymph node metastases. The patient did not receive further treatment and died 2 mo after the surgery. Conclusions Gastrointestinal epithelioid angiosarcoma is one of the differential diagnoses of gastrointestinal adenocarcinoma and surgery is the main treatment. The lymph nodes are one of the main sites of metastasis.