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Two cases of perivascular epithelioid cell tumor of the uterus: clinical, radiological and pathological diagnostic challenge.

Abstract Perivascular epithelioid cell tumor (PEComa) is a rare subtype of mesenchymal origin tumor composed of epithelioid cells which exhibits immunohistochemical co-expressions of melanocytic markers and smooth muscle markers.
PMID
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Authors

Mayor MeshTerms
Keywords

Immunohistochemistry

Morphology

Perivascular epithelioid cell tumor (PEComa)

Journal Title european journal of medical research
Publication Year Start




PMID- 28270196
OWN - NLM
STAT- MEDLINE
DA  - 20170308
DCOM- 20170314
LR  - 20170314
IS  - 2047-783X (Electronic)
IS  - 0949-2321 (Linking)
VI  - 22
IP  - 1
DP  - 2017 Mar 07
TI  - Two cases of perivascular epithelioid cell tumor of the uterus: clinical,
      radiological and pathological diagnostic challenge.
PG  - 7
LID - 10.1186/s40001-017-0248-y [doi]
AB  - BACKGROUND: Perivascular epithelioid cell tumor (PEComa) is a rare subtype of
      mesenchymal origin tumor composed of epithelioid cells which exhibits
      immunohistochemical co-expressions of melanocytic markers and smooth muscle
      markers. CASE PRESENTATION: In the first case, malignant uterine PEComa with
      vaginal and multiple lung metastasis was misdiagnosed preoperatively as uterine
      leiomyosarcoma despite a preoperative punch biopsy and immunohistochemical
      analysis of the metastatic vaginal mass. In the second case, synchronous uterine 
      PEComa showing benign histology with lymph node involvement was incidentally
      detected after a staging operation for ovarian cancer. Definitive diagnosis of
      uterine PEComa was achieved only after hysterectomy despite preoperative
      assessment with pelvic magnetic resonance imaging and punch biopsy of metastatic 
      lesion. CONCLUSION: The authors report two rare cases of uterine PEComa diagnosed
      postoperatively based on the morphologic and immunohistochemical features.
FAU - Kwon, Byung Su
AU  - Kwon BS
AD  - Department of Obstetrics and Gynecology, Pusan National University School of
      Medicine, 179, Gudeok-Ro, Seo-Gu, Busan, 49241, South Korea.
AD  - Biomedical Research Institute and Pusan Cancer Center, Pusan National University 
      Hospital, 179, Gudeok-Ro, Seo-Gu, Busan, 49241, South Korea.
FAU - Suh, Dong Soo
AU  - Suh DS
AD  - Department of Obstetrics and Gynecology, Pusan National University School of
      Medicine, 179, Gudeok-Ro, Seo-Gu, Busan, 49241, South Korea.
AD  - Biomedical Research Institute and Pusan Cancer Center, Pusan National University 
      Hospital, 179, Gudeok-Ro, Seo-Gu, Busan, 49241, South Korea.
FAU - Lee, Nam Kyung
AU  - Lee NK
AD  - Department of Radiology, Pusan National University School of Medicine, Busan,
      49241, South Korea.
FAU - Song, Yong Jung
AU  - Song YJ
AD  - Department of Obstetrics and Gynecology, Pusan National University School of
      Medicine, 179, Gudeok-Ro, Seo-Gu, Busan, 49241, South Korea.
FAU - Choi, Kyung Un
AU  - Choi KU
AD  - Department of Pathology, Pusan National University School of Medicine, Busan,
      49241, South Korea.
FAU - Kim, Ki Hyung
AU  - Kim KH
AD  - Department of Obstetrics and Gynecology, Pusan National University School of
      Medicine, 179, Gudeok-Ro, Seo-Gu, Busan, 49241, South Korea. [email protected]
AD  - Biomedical Research Institute and Pusan Cancer Center, Pusan National University 
      Hospital, 179, Gudeok-Ro, Seo-Gu, Busan, 49241, South Korea. [email protected]
LA  - eng
PT  - Case Reports
PT  - Journal Article
DEP - 20170307
PL  - England
TA  - Eur J Med Res
JT  - European journal of medical research
JID - 9517857
SB  - IM
MH  - Adult
MH  - Diagnosis, Differential
MH  - Female
MH  - Humans
MH  - Middle Aged
MH  - Perivascular Epithelioid Cell Neoplasms/*diagnostic imaging/pathology
MH  - Uterine Neoplasms/*diagnostic imaging/pathology
PMC - PMC5341375
OTO - NOTNLM
OT  - *Immunohistochemistry
OT  - *Morphology
OT  - *Perivascular epithelioid cell tumor (PEComa)
EDAT- 2017/03/09 06:00
MHDA- 2017/03/16 06:00
CRDT- 2017/03/09 06:00
PHST- 2016/11/14 [received]
PHST- 2017/03/02 [accepted]
AID - 10.1186/s40001-017-0248-y [doi]
AID - 10.1186/s40001-017-0248-y [pii]
PST - epublish
SO  - Eur J Med Res. 2017 Mar 7;22(1):7. doi: 10.1186/s40001-017-0248-y.

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