Morphological and molecular characteristics of Panax sp. (Araliaceae) from Phu Xai lai leng mountain, Nghe An province, Vietnam

Seven sterile and young specimens of Panax sp. were collected in Phu Xai Lai Leng silicat mountain, the highest mountain  peak in central Vietnam. Morphologically, they resemble P. stipuleanatus and P. bipinnatifidus. However, they have stipules and leaflets that are not bipinnatifid. The ITS-DNA sequences of Panax sp. from Phu Xai Lai Leng are identical and exhibit a close relationship with P. stipuleanatus from Tam Duong district, Lai Chau province with strong bootstrap support (98%). Noticeably, these two taxa  are different by 2 nucleotides. A collection of standard specimens including inflorescence, infructescence, flowers and ripe fruits of Panax from Phu Xai Lai Leng is needed to determine its taxonomic status.

Primary hepatic neuroendocrine tumor

Primary hepatic neuroendocrine tumor (PHNET) is a rare type of neuroendocrine tumor (NET) that is also a primary hepatic tumor. Patients are present with almost no specific clinical symptoms and typically present with negative test results and atypical imaging characteristics; therefore, the differentiation of PHNET from other types of primary hepatic masses can be very difficult. In this article, we describe a case of PHNET that mimicked a liver helminth infection in a 57-year-old man. The diagnosis of PHNET in this patient was challenging, and the final diagnosis was based on imaging, histopathology features, and long-term follow-up