Other germ cell tumors: Endodermal sinus tumor (rare subtypes are hepatoid and intestinal).

Sclerosing rhabdomyosarcoma is a rare subtype of rhabdomyosarcoma that was characterized by Folpe et al. in 2002.

De Garengeot's hernia is a rare subtype of an incarcerated femoral hernia.

However, if a rare subtype of autism were reliably identified by clinical or pathological characteristics, epidemiological research could address the question whether MMR causes that autism subtype.

"All had different sub-types of known C.J.D." One, who was 24, had a very rare subtype known to affect younger people.

He said that of 39 cases he had seen of patients who had had the rare subtype, all were smokers.

The pancreatic form of acinic cell carcinoma is a rare subtype of exocrine pancreatic cancer.

Acute eosinophilic leukemia (AEL) is a rare subtype of acute myeloid leukemia with 50 to 80 percent of eosinophilic cells in the blood and marrow.

There are a large number of rare subtypes of anaplastic, undifferentiated carcinoma.

Other extremely rare subtypes of AML include acute eosinophilic leukemia and acute basophilic leukemia.