Hemolymphangioma is a malformation of both the lymphatic and vascular systems.
Histopathological examination (Figure 2) revealed abnormal lymphatic and blood vessels with polycystic spaces, thin wall, and dyed red lymph and blood cells within the lumen, which confirmed a diagnosis of hemolymphangioma. The postoperative course of the patient was uneventful, and the patient was discharged 2 weeks following the surgery.
In preparation of this case report, a review of the existing medical literature was performed with the PubMed database, using the following keyword: "Hemolymphangioma" to identify all possible studies published up to September 2017.
Hemolymphangioma is thought to originate from the mesenchymal tissue  and typically found by palpation or with symptomatic compression of nearby anatomic structures .
Most researchers believe that hemolymphangioma is commonly a benign disease and has no invasive ability [1,2, 5-11, 13-23].
Surgical resection appears to be the most effective treatment for hemolymphangioma, especially when the tumor increases in size and creates pressure on the surrounding tissues.
Hemolymphangioma of the occipitocervical region is an uncommon presentation of a rare lesion.
Filiopoulos, "Hemolymphangioma of the lower extremities in children: two case reports," Journal of Orthopaedic Surgery and Research, vol.
Narumi et al., "A case of invasive hemolymphangioma of the pancreas," World Journal of Gastroenterology, vol.
Zhou et al., "A giant hemolymphangioma of the pancreas in a 20-year-old girl: a report of one case and review of the literature," World Journal of Surgical Oncology, vol.
Chao, "Hemolymphangioma: a rare differential diagnosis of cysticsolid or cystic tumors of the pancreas," World Journal of Gastroenterology, vol.