Neuromodulation in the treatment of postoperative epidural fibrosis: comparison of the extent of epidural fibrosis and the effect of stimulation.

The goal was to prove that when a cohort of patients is chosen precisely, dorsal column stimulation provides significant improvement to quality of life. We studied a cohort of 50 patients with the history of failed back surgery syndrome coupled with epidural fibrosis (EF). A percutaneous implantation technique was used in each of the 50 patients.

[Atypical decubital fibroplasia (ischemic fasciitis)--a new pseudosarcomatous entity].

Two cases of atypical decubital fibroplasia (ischemic fasciitis) were presented. Both patients were immunocompromized and their lesions were located in usual decubital places (back shoulder, femorogluteal region). Histology was typical: 1.

Yolk sac carcinoma of the stomach with gastrin positivity.

A gastric antral tumor histologically classified as a yolk sac carcinoma was studied immunohistochemically. The tumor contained immunoreactive alpha-fetoprotein and gastrin. This is the first yolk sac carcinoma in which neuroendocrine differentiation was demonstrated immunohistochemically.

[Combined small cell and "adenoid cystic" carcinoma of the uterine cervix].

Cervical carcinoma in a 49-year-old woman was resected and found to spread into parametrium. It consisted of a unique combination of adenoid cystic, squamous and small cell neuroendocrine structures. Small celled part revealed positivity with chromogranin A and neuron-specific enolase, neuroendocrine granules were argyrophilic and about 130 nm in diameter.

[Basal-squamous carcinoma of the hypopharynx and larynx].

Another case of a very rare type of carcinoma is presented which was introduced recently as occurring in hypopharynx, larynx and tongue. Macroscopical description of an exophytic tumour of aryepiglottic fold and piriform recess in a 41-year old man is the second one in literature. Main histological feature of the tumour is a biphasic cellular structure with closely related basaloid and squamous components.