1
|
Patton A, McKenney JK, Alruwaii FI, Angulo KA, Fuller LD, Calvaresi E, Billings SD, Goldblum JR, Fritchie KJ. Paratesticular Dedifferentiated Liposarcoma with Epithelioid Features: A Diagnostic Pitfall. Int J Surg Pathol 2022:10668969221120780. [DOI: 10.1177/10668969221120780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Well-differentiated/dedifferentiated liposarcoma (WDLPS/DDLPS) represent a significant number of sarcomas arising within the paratesticular region. DDLPS is notorious for a broad histologic spectrum, but epithelioid morphology is rare. Herein, we describe a unique case of paratesticular DDLPS with prominent epithelioid features and molecular confirmation. The patient is 71-year-old-male who presented with multiple paratesticular masses. Morphologic review of the resection specimen revealed a biphasic adipocytic neoplasm consistent with DDLPS. Additionally, epithelioid foci with acinar and nested architecture and focal keratin expression were noted. These areas raised the possibility of a secondary neoplasm including sex cord stromal tumor, germ cell tumor, and paraganglioma. However, MDM2 immunohistochemistry and FISH showed these areas to express MDM2 and exhibit MDM2 amplification, respectively, confirming that they represented a component of DDLPS. This case further highlights the morphologic diversity of DDLPS as well as the utility of MDM2 studies.
Collapse
Affiliation(s)
- Ashley Patton
- Department of Pathology & Laboratory Medicine, The Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Jesse K. McKenney
- Robert J. Tomsich Pathology and Laboratory Medicine Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Fatimah I. Alruwaii
- Robert J. Tomsich Pathology and Laboratory Medicine Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Karen Arispe Angulo
- Robert J. Tomsich Pathology and Laboratory Medicine Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Lanisha D. Fuller
- Robert J. Tomsich Pathology and Laboratory Medicine Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Emilia Calvaresi
- Robert J. Tomsich Pathology and Laboratory Medicine Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Steven D. Billings
- Robert J. Tomsich Pathology and Laboratory Medicine Institute, Cleveland Clinic, Cleveland, OH, USA
| | - John R. Goldblum
- Robert J. Tomsich Pathology and Laboratory Medicine Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Karen J. Fritchie
- Robert J. Tomsich Pathology and Laboratory Medicine Institute, Cleveland Clinic, Cleveland, OH, USA
| |
Collapse
|
2
|
Li J, Wang J, Han H, Tian L, Yin H. Case report: Two cases of primary paratesticular liposarcoma. Front Oncol 2022; 12:1040458. [PMID: 36324590 PMCID: PMC9618863 DOI: 10.3389/fonc.2022.1040458] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 09/29/2022] [Indexed: 02/05/2023] Open
Abstract
Paratesticular liposarcoma is a sporadic urological tumor. We report the clinical presentation, treatment course, and prognosis of 2 cases of primary paratesticular liposarcoma with different pathological types, with the aim of further understanding the diagnosis and treatment of this rare disease. Case 1 was a 53-years-old male patient who presented with left scrotal enlargement with swelling 3 years ago and was considered to have a testicular malignancy on preoperative CT scan and enhanced MRI. The patient underwent resection of the left scrotal mass and left orchiectomy under general anaesthesia. Histopathological study confirmed the diagnosis of dedifferentiated liposarcoma. At the 4-months follow-up, no local recurrence or distant metastasis was observed. Case 2 is a 42-years-old male patient with a left scrotal mass which was discovered six months ago. Preoperatively, he underwent CT plain and enhanced MRI examinations suggesting an intra-scrotal occupancy. The patient underwent scrotoscopic excision of the left scrotal mass under general anesthesia. Histopathological studies confirmed the diagnosis of highly differentiated liposarcoma. At the 10-months follow-up, no local recurrence or distant metastasis was observed. Preoperative differential diagnosis of paratesticular liposarcoma should be noted with testicular tumor and extra-abdominal hernia. Extensive local excision and, if necessary, concomitant radical testicular resection is the treatment of choice. If the tumor in the scrotum spreads to the inguinal region, surgical removal with the aid of a scrotoscope may be attempted. This procedure avoids the formation of a large incision in the inguinal region compared to traditional open surgery. Patients commonly experience local recurrence and less distant metastases after surgery, so long-term follow-up is recommended.
Collapse
Affiliation(s)
- Jiaxing Li
- Department of Urology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
- Institute of Urology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Jiayu Wang
- Department of Urology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
- Institute of Urology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Hu Han
- Department of Urology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
- Institute of Urology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Long Tian
- Department of Urology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
- Institute of Urology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
- *Correspondence: Hang Yin, ; Long Tian,
| | - Hang Yin
- Department of Urology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
- Institute of Urology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
- *Correspondence: Hang Yin, ; Long Tian,
| |
Collapse
|