Thoracoabdominal teratoma: Rare location

Abstract

The patient presented with thoracoabdominal teratoma. Although without malignant transformation, the teratoma required splenectomy, supraadrenalectomy and nefrectomy due to its position and size.

Retroperitoneal teratoma misdiagnosed as a gastric stromal tumor: A case report

“…Teratomas may be classified into three main types, namely immature, mature and monoembryonic. Mature retroperitoneal teratomas are mostly benign and malignant, accounting for 26% (8,9). The early symptoms of retroperitoneal teratoma may not be readily evident and are non-specific; thus, they are not easily identifiable and the tumor is often misdiagnosed (10,11).…”

Morphology and immunohistochemical studies of ovarian strumal carcinoid

“…O primarnom karcinoidu jajnika po prvi put je pisao 1939. godine Stewart sa saradnicima i do danas je ostao zabeležen u udžbenicima kao izuzetno retka neoplazma [7]. U tankom crevu i apendiksu javlja se 90% karcinoida, dok je preosatalih 10% rezervisano za jajnik, testise, sakrokokcigealnu regiju, medijastinum, retroperitoneum, pod usne duplje [1,2,4,5,11,12]. Karcinoid jajnika je podeljan na četiri tipa: insularni, trabekularni, mucinozni i strumalni tip.…”

Squamous cell carcinoma in mature cystic teratoma of the ovary

“…These tumors are composed of well-differentiated mature tissues, derived from at least one or usually all three embryonic layers -the ectoderm, mesoderm and endoderm, with ectodermal derivatives as the most common ones [1]. Mature teratomas are usually cystic, and rarely solid tumors [2,3]. Mature teratomas are usually cystic, and rarely solid tumors [2,3].…”

“…Malignant transformation of a benign cystic teratoma is rare, occurring only in approximately 1.5% of cases [1,4]. The incidence of secondary malignances in mature cystic teratomas increases with patient's age [2,6]. The incidence of secondary malignances in mature cystic teratomas increases with patient's age [2,6].…”