National Library of Medicine - Medical Subject Headings
2008 MeSH
MeSH Descriptor Data
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MeSH Heading Pheochromocytoma
Tree Number C04.557.465.625.650.700.725
Tree Number C04.557.580.625.650.700.725
Annotation benign or malignant; coord IM with usually ADRENAL GLAND NEOPLASMS (IM)
Scope Note A usually benign, well-encapsulated, lobular, vascular tumor of chromaffin tissue of the ADRENAL MEDULLA or sympathetic paraganglia. The cardinal symptom, reflecting the increased secretion of EPINEPHRINE and NOREPINEPHRINE, is HYPERTENSION, which may be persistent or intermittent. During severe attacks, there may be HEADACHE; SWEATING, palpitation, apprehension, TREMOR; PALLOR or FLUSHING of the face, NAUSEA and VOMITING, pain in the CHEST and ABDOMEN, and paresthesias of the extremities. The incidence of malignancy is as low as 5% but the pathologic distinction between benign and malignant pheochromocytomas is not clear. (Dorland, 27th ed; DeVita Jr et al., Cancer: Principles & Practice of Oncology, 3d ed, p1298)
Entry Term Pheochromocytoma, Extra-Adrenal
See Also Multiple Endocrine Neoplasia Type 2a
See Also Multiple Endocrine Neoplasia Type 2b
Allowable Qualifiers BL BS CF CH CI CL CN CO DH DI DT EC EH EM EN EP ET GE HI IM ME MI MO NU PA PC PP PS PX RA RH RI RT SC SE SU TH UL UR US VE VI
Date of Entry 19990101
Unique ID D010673
MeSH Tree Structures
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