Rare Diseases Symptoms Automatic Extraction

Lipomatous tumors of the anterior mediastinum with muscle differentiation: a clinicopathological and immunohistochemical study of three cases.

[well-differentiated liposarcoma]

Three cases of primary lipomatous tumors of the anterior mediastinum with prominent muscle differentiation are presented. The patients were two women and one man between the age of 52 and 68 years. All patients presented with progressive shortness of breath. Radiographically, all patients demonstrated anterior mediastinal tumors which were surgically resected. In two cases, the gross findings were those of circumscribed tumors, while one lesion was described as an ill-defined and unencapsulated neoplasm. Histologically, two cases corresponded to a well-differentiated liposarcoma, while the third was a thymolipoma. Extensive areas of smooth muscle were identified in one of the liposarcomas, while the other contained areas of mature skeletal muscle. The thymolipoma displayed a prominent myoid component. Immunohistochemical studies for muscle markers including smooth muscle actin, desmin, and myoglobin showed positive staining in the corresponding components. Follow-up information showed that one patient with liposarcoma died 60 months after initial diagnosis, while the other two patients remain alive and well 16 and 36 months after diagnosis, respectively. The current cases highlight the spectrum of muscle differentiation that can be seen in adipose tumors of the anterior mediastinum and also emphasize the difficulty that such a diagnosis can pose when confronted with limited mediastinoscopic biopsies.

Diseases presenting "neoplasm" symptom

  • adrenal incidentaloma
  • alexander disease
  • aromatase deficiency
  • carcinoma of the gallbladder
  • cholangiocarcinoma
  • cowden syndrome
  • cushing syndrome
  • cutaneous mastocytosis
  • dedifferentiated liposarcoma
  • dentin dysplasia
  • erdheim-chester disease
  • esophageal adenocarcinoma
  • esophageal carcinoma
  • familial hypocalciuric hypercalcemia
  • focal myositis
  • hodgkin lymphoma, classical
  • hydrocephalus with stenosis of the aqueduct of sylvius
  • junctional epidermolysis bullosa
  • kabuki syndrome
  • liposarcoma
  • lymphangioleiomyomatosis
  • pleomorphic liposarcoma
  • primary effusion lymphoma
  • proteus syndrome
  • pyomyositis
  • von hippel-lindau disease
  • waldenström macroglobulinemia
  • well-differentiated liposarcoma
  • werner syndrome
  • wolf-hirschhorn syndrome

This symptom has already been validated