FOSSA DE BANANEIRA

De novo gliosarcoma occurring in the posterior fossa of a 11-year-old girl.

Posterior fossa teratoma.

Germ cell tumors comprise approximately 2-5% of all childhood brain tumors. They arise predominantly in the pineal and suprasellar region, but may occur throughout the brain. Teratomas are generally divided into gonadal and extragonadal types. A posterior fossa teratoma is a rare occurrence. The focus of this discussion is a 5-year-old boy with posterior fossa teratoma who recovered completely ...

Prostatic fossa calculus

A 70-year-old man presented for evaluation of recurrent urinary tract infection. He had history of hypertension and had undergone suprapubic prostatectomy 8 years ago for enlarged obstructive prostate. Digital rectal examination found a stony irregular prostate and urine culture grew Escherichia Coli that was susceptible to Cephalosporines. As part of the evaluation, a plain radiograph was perf...

Fossa navicularis magna.

A notchlike bone defect in the basiocciput due to a prominent fossa navicularis was incidentally discovered in a patient referred for radiologic evaluation of sinusitis. MR images showed that the osseous defect was filled with lymphoid tissue of the pharyngeal tonsil. The occurrence of this anatomic variant is discussed, with reference to ancient anatomic works.

Jugular Fossa Lesions

lar foramen. It lodges the jugular bulb, which continues into the jugular vein inferiorly (Fig. 1). In the neurosurgical literature, and even in extensive anatomic studies, both the jugular foramen and the jugular fossa often are referred to by the term "jugular foramen." This use of the term may be the result either of simple error or the user's wish to provide a broader anatomic description o...