Rosai-Dorfman Disease Presenting as Peripheral Vascular Insufficiency.

Rosai-Dorfman (-Destombes) disease (RDDD) is a rare idiopathic disorder of histiocyte proliferation, usually involving lymph node stations. The most common clinical finding is a bilateral cervical lymphadenopathy, fever, and weight loss. Arterial or venous structures are notably not involved.

Thyroglossal duct cyst cancer most likely arises from a thyroid gland remnant.

Thyroglossal duct cancer is a rare entity, occurring in 1.5 % of all thyroglossal duct cysts (TDC). A definitive consensus about its neoplastic origin has not been established as two contrasting theories exist, one proposing an origin in extra-thyroid remnants and the other a metastatic localization of a primary thyroid cancer.

Spiral hydro-CT in the evaluation of colo-sigmoideal cancer.

Purpose: To evaluate the accuracy of spiral hydro-CT in the diagnosis and preoperative staging of colo-sigmoideal neoplasms and the impact of this technique on therapeutic decisions.

Materials And Methods: Sixty patients with colo-sigmoideal neoplasms, 16 in caecum-ascending colon, 2 in transverse colon, 14 in descending colon, and 28 in sigmoid colon, diagnosed with fiberoptic colonoscopy and histopathological specimen, under-went spiral hydro-CT with IV contrast medium administration. Local invasion (T factor) and nodal involvement (N factor) were evaluated.