A taxonomic revision of the Bothynus villiersi Endrdi, 1968 species group (Coleoptera: Scarabaeidae: Dynastinae).

The Bothynus villiersi species group (Coleoptera: Scarabaeidae: Dynastinae: Pentodontini) is revised and is composed of five South American species: Bothynus villiersi Endrdi, 1968; Bothynus horridus Endrdi, 1968; Bothynus alvarengai Martnez, 1983; Bothynus spinophallicus (Ratcliffe Cave, 2021) new combination; and Bothynus belemensis new species. Redescriptions, illustrations, new diagnostic characters, identification key, and a first known geographical distribution map for the group are presented.

Melanotic Neuroectodermal Tumor of Infancy Presenting With Fast-Growing Scrotal Swelling: A Case Report and Literature Review.

Testicular melanotic neuroectodermal tumor of infancy (MNTI) is extremely rare, with 2 cases reported in the literature. Its rarity and rapid and infiltrative growth pattern pose a diagnostic challenge. A previously healthy 3-month-old male, presented with a history of worsening left hemiscrotal swelling for 1 week.

Mullerian-Type Ciliated Cyst of the Thigh with PAX-8 and WT1 Positivity: A Case Report and Review of the Literature.

Mullerian-type ciliated cysts are uncommon lesions usually found in the lower extremities and perineal region of young females. They have however been reported in males and in other anatomic sites. The cyst lining is typically positive for estrogen receptor (ER), progesterone receptor (PR), PAX-8, and WT1 immunohistochemical stains.