Open Access 01-10-2017 | Brief Report
Composite tumor with pheochromocytoma and immature neuroblastoma: report of two cases with cytogenetic analysis and discussion of current terminology
Published in: Virchows Archiv | Issue 4/2017
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Pheochromocytoma, paraganglioma, and neuroblastoma are all derived from sympathetic nervous tissues and can exhibit a spectrum of morphology. The literature includes reports of tumors with morphologic features of both pheochromocytoma and neuroblastoma within the same tumor. The term “composite pheochromocytoma” has been used to describe these tumors as well as pheochromocytomas with other neural crest derivatives, such as malignant peripheral nerve sheath tumor and neuroendocrine carcinoma. “Composite pheochromocytoma” is rare, and there is a paucity of information in the literature regarding its biological behavior, clinical outcome, and molecular profile. The most commonly reported cases include components of pheochromocytoma and ganglioneuroma [1]. However, there are only few reports of tumors with components of pheochromocytoma and stroma-poor neuroblastoma (Table 1) [2‐7]. We report two distinct cases of composite tumors of the adrenal gland consisting of pheochromocytoma and neuroblastoma.
Table 1
Summary of previously reported cases of composite pheochromocytoma with immature neuroblastoma component including the two cases reported in this study
Case number
|
Reference
|
Age (years)/sex
|
Associated syndromes
|
Location
|
Metastasis
|
Treatment
|
N-MYC amplification
|
Follow-up
|
---|---|---|---|---|---|---|---|---|
1
|
Wahl 1943 [2]
|
4/M
|
None
|
Mediastinum
|
Yes
|
Radiation
|
N/A
|
Died (8-month follow-up)
|
2
|
Franquemont 1994 [3]
|
49/M
|
None
|
Adrenal-left
|
No
|
Surgery
|
N/A
|
No evidence of disease after 1 year
|
3
|
Franquemont 1994 [3]
|
38/M
|
None
|
Adrenal-right
|
Yes
|
Surgery and chemoradiation
|
N/A
|
Died 3 months after diagnosis
|
4
|
Candanedo-Gonzalez 2001 [4]
|
56/F
|
None
|
Adrenal-right
|
No
|
Surgery
|
N/A
|
Asymptomatic at 24 months post-op
|
5
|
Tatekawa 2006 [5]
|
5/M
|
None
|
Adrenal-left
|
No
|
Surgery
|
N/A
|
Unknown
|
6
|
Comstock 2009 [6]
|
17/M
|
NF1
|
Adrenal-laterality unspecified
|
No
|
Unknown
|
Non-amplified
|
Alive (follow-up date unknown)
|
7
|
Steen 2014 [7]
|
46/M
|
None
|
Adrenal-left
|
No
|
Surgery
|
N/A
|
Asymptomatic and normotensive at 6 months post-op
|
8
|
Current study
|
57/M
|
NF1
|
Adrenal-left
|
No
|
Surgery
|
Non-amplified
|
Asymptomatic and normotensive (6 months post-op)
|
9
|
Current study
|
5/M
|
None
|
Adrenal-left
|
Yes
|
Surgery, chemoradiation, SCT
|
Amplified
|
Died 2 years after diagnosis
|