1
|
Edo H, Yagi F, Mizuno M, Okada M, Hyoe E, Ozaki I, Akita H, Jinzaki M, Shinmoto H. Extratesticular masses focusing on MRI findings. Jpn J Radiol 2024:10.1007/s11604-024-01605-4. [PMID: 38836965 DOI: 10.1007/s11604-024-01605-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Accepted: 05/27/2024] [Indexed: 06/06/2024]
Abstract
Scrotal masses, whether cystic or solid lesions, are routinely evaluated using ultrasonography. Magnetic resonance imaging (MRI) may be used for further investigation in cases with atypical findings, difficult diagnoses, large masses, and/or unclear relationships with the surrounding tissues. Scrotal solid masses are divided into intra- and extra-testicular masses. A staggering 90% of the intratesticular masses are malignant, whereas 75% of extratesticular masses are benign. Extratesticular masses are less common than intratesticular masses; however, some extratesticular masses present characteristic MRI findings. Familiarity with these specific MRI features of extratesticular masses is beneficial to radiologists, as appropriate diagnoses can help avoid unnecessary invasive treatments such as orchiectomy. In this review, we describe fibrous pseudotumors, polyorchidism, adenomatoid tumors, and scrotal leiomyoma as benign paratesticular masses, focusing on their characteristic imaging features on MRI. Although these tumors are extremely rare, their MRI findings are distinctive, and accurate diagnoses can prevent unnecessary orchiectomy. In addition, to demonstrate the pitfalls of diagnosing extratesticular masses, we present a case of seminoma misidentified as extratesticular masses due to large extensions outside the testis. Spermatic cord sarcoma, including rhabdomyosarcoma, leiomyosarcoma, and liposarcoma, and metastasis to the spermatic cord are described as malignant extratesticular masses. This review focused on extratesticular masses and elaborates the imaging findings that can aid in the accurate diagnosis using MRI.
Collapse
Affiliation(s)
- Hiromi Edo
- Department of Radiology, National Defense Medical College, 3-2 Namiki, Tokorozawa-shi, Saitama, 359-8513, Japan.
| | - Fumiko Yagi
- Department of Diagnostic Radiology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Mariko Mizuno
- Department of Radiology, Nihon University School of Medicine, 30-1 Oyaguchikami-Machi, Itabashi-ku, Tokyo, 173-8610, Japan
| | - Masahiro Okada
- Department of Radiology, Nihon University School of Medicine, 30-1 Oyaguchikami-Machi, Itabashi-ku, Tokyo, 173-8610, Japan
| | - Eiko Hyoe
- Department of Radiology, National Defense Medical College, 3-2 Namiki, Tokorozawa-shi, Saitama, 359-8513, Japan
| | - Ippei Ozaki
- Department of Radiology, National Defense Medical College, 3-2 Namiki, Tokorozawa-shi, Saitama, 359-8513, Japan
| | - Hirotaka Akita
- Department of Diagnostic Radiology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Masahiro Jinzaki
- Department of Diagnostic Radiology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Hiroshi Shinmoto
- Department of Radiology, National Defense Medical College, 3-2 Namiki, Tokorozawa-shi, Saitama, 359-8513, Japan
| |
Collapse
|
2
|
Pagliuca F, Lucà S, De Sio M, Arcaniolo D, Facchini G, De Martino M, Esposito F, DE Vita F, Chieffi P, Franco R. Testicular/paratesticular mesothelial tumours: Uncommon histopathologic entities in a very complex anatomical site. Pathol Res Pract 2024; 253:155069. [PMID: 38181581 DOI: 10.1016/j.prp.2023.155069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 12/28/2023] [Indexed: 01/07/2024]
Abstract
Mesothelial tumours of the testicular/paratesticular region are uncommon, poorly characterised and difficult-to-diagnose lesions. They encompass entirely benign proliferations (adenomatoid tumour) and malignant, very aggressive tumours (mesothelioma) whose morphological features can be overlapping, highly variable and confounding. Moreover, testicular/paratesticular mesothelial tumours comprise relatively new entities with indolent behaviour (well-differentiated papillary mesothelial tumour) as well as tumours which cannot be correctly included in any of the aforementioned categories and whose classification is still controversial. The molecular profile of such tumours represents an open issue. In fact, despite the recent discoveries about the genomic landscape of mesothelial proliferations at other sites (pleura, peritoneum), testicular/paratesticular mesothelial tumours, and namely mesotheliomas, are too rare to be extensively studied on large case series and they could arguably hide relevant differences in their molecular background when compared to the more common pleural/peritoneal counterparts.The aim of this review is to provide a guide for the pathological assessment of testicular/paratesticular mesothelial tumours. Herein, we describe the most recent updates on this topic according to the latest (year 2022) World Health Organisation Classification of Urinary and Male Genital Tumours (5th edition) and current literature. The diagnostic criteria, the main differentials and the role of ancillary techniques in the diagnosis of mesothelial testicular/paratesticular tumours are discussed.
Collapse
Affiliation(s)
| | - Stefano Lucà
- Department of Mental and Physical Health and Preventive Medicine, University of Campania "L. Vanvitelli", 80138 Naples, Italy
| | - Marco De Sio
- Department of Woman, Child and General and Specialized Surgery, University of Campania "Luigi Vanvitelli", 80131 Naples, Italy; Urology Unit, Azienda Policlinico Unversità 'L. Vanvitelli', 80131 Naples, Italy
| | - Davide Arcaniolo
- Department of Woman, Child and General and Specialized Surgery, University of Campania "Luigi Vanvitelli", 80131 Naples, Italy; Urology Unit, Azienda Policlinico Unversità 'L. Vanvitelli', 80131 Naples, Italy
| | - Gaetano Facchini
- Oncology Unit, "S. Maria delle Grazie" Hospital, ASL NA2 NORD, 80078 Pozzuoli, Naples, Italy
| | - Marco De Martino
- Department of Precision Medicine, University of Campania "L. Vanvitelli", 80138 Naples, Italy; Institute of Endocrinology and Experimental Oncology of the CNR, 80131 Naples, Italy
| | - Francesco Esposito
- Institute of Endocrinology and Experimental Oncology of the CNR, 80131 Naples, Italy
| | - Ferdinando DE Vita
- Department of Precision Medicine, University of Campania "L. Vanvitelli", 80138 Naples, Italy
| | - Paolo Chieffi
- Department of Precision Medicine, University of Campania "L. Vanvitelli", 80138 Naples, Italy.
| | - Renato Franco
- Pathology Unit, Azienda Policlinico Unversità 'L. Vanvitelli, Italy; Department of Mental and Physical Health and Preventive Medicine, University of Campania "L. Vanvitelli", 80138 Naples, Italy
| |
Collapse
|
3
|
Efared B, Boubacar I, Soumana D, Bako ABA, Coulibaly IS, Koura HH, Boureima HS, Nouhou H. Epididymal adenomatoid tumor: a case report and literature review. AFRICAN JOURNAL OF UROLOGY 2022. [DOI: 10.1186/s12301-022-00329-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Abstract
Background
Adenomatoid tumor is a very rare benign neoplasm of mesothelial origin affecting mainly female and male genital tracts. The diagnosis is challenging as this tumor mimics many differential diagnoses. The current literature offers only some case reports and short series of adenomatoid tumors.
Case presentation
A 47-year-old patient with unremarkable medical history presented for chronic mild pain of the right testis evolving for months. The physical examination shows a palpable right intrascrotal nodule of 10 mm in greatest diameter. The nodule was painful, mobile with firm consistency. The laboratory investigations were within normal limits, the scrotal ultrasonography showed a well-circumscribed predominantly hyperechoic intrascrotal nodule in the right epididymal head with heterogeneous echostructure. Excisional biopsy of the lesion was performed and the histopathological analysis showed a well-circumscribed tumor with microcystic and trabecular architecture made of small interconnected tubules and cysts lined by flattened cells with prominent vacuolization and thread-like bridging strands, consistent with an epididymal adenomatoid tumor. The postoperative course was uneventful and the patient was discharged. Four months after surgical treatment, the patient has no sign of the disease.
Conclusion
Testicular adenomatoid tumors are uncommon benign neoplasms with diagnostic challenge. Adenomatoid tumors arising in epididymis are managed by excisional biopsy with testis-sparing surgery avoiding unnecessary orchidectomy.
Collapse
|
4
|
Cheng CQ, Sun J, Yin JY, Wang TT, He XM. Ultrasonography of a giant adenomatoid tumor of the tunica vaginalis: A case report and review of the literature. Radiol Case Rep 2022; 17:4302-4307. [PMID: 36132067 PMCID: PMC9483582 DOI: 10.1016/j.radcr.2022.08.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 08/07/2022] [Accepted: 08/10/2022] [Indexed: 10/31/2022] Open
Abstract
Adenomatoid tumor is a kind of benign tumor, accounts for a low percentage of scrotal tumors. It usually locates in epididymis, less commonly, arises from the tunica albuginea, spermatic cord or tunica vaginalis of male's urogenital tract system. Here, we report a case of a 32-year-old male, which presented as a 6-month history of left scrotal swelling pain with a scrotal mass, and it had progressively enlarged over the last 1 month. The ultrasonography (US) described a giant well-defined hypoechoic mass in the left scrotum, a thick pedicle connected the mass and the left scrotal wall, and the pedicle had large blood vessels in it. Enhanced CT showed an irregular solid mass in the left scrotum, the left testicular artery was thickened to supply blood for the mass, and the radiologist mentioned it could not be excluded as a malignant lesion. The patient underwent left radical orchiectomy, the mass was diagnosed as an adenomatoid tumor of the tunica vaginalis by pathology. We review literature regarding adenomatoid tumors originating in the tunica vaginalis, summarize the ultrasonographic presentations, provide the idea of diagnosis and differential diagnosis to improve diagnostic accuracy and avoid unnecessary orchiectomy.
Collapse
|
5
|
Rachapudi S, Srinivasan A, Gorman B, Wilhelm AB, Eyzaguirre E, Orihuela E. Ewing's sarcoma of the male external genitalia: a case report and review of the literature. BMC Urol 2022; 22:121. [PMID: 35941637 PMCID: PMC9358798 DOI: 10.1186/s12894-022-01072-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Accepted: 07/24/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Ewing's sarcoma (ES) within the genitourinary tract are relatively unheard of and those within the external male genitalia are even rarer. To our knowledge, this is the first known case of primary ES within the paratesticular region in an adult. CASE PRESENTATION We present a case of a 24-year-old man with a right sided testicular mass on examination that was initially characterized as an adenomatoid tumor on ultrasound. After the patient was lost to follow up over the course of 9 months, the testicular mass grew significantly and was excised with pathology revealing primary paratesticular Ewing's sarcoma. This rare case emphasizes the importance of elucidating between the broad differentials of paratesticular masses, including the rare presentation of primary ES and adds a review of the literature of ES in the external male genitalia. CONCLUSIONS Rare differentials such as this case should be considered in patients with paratesticular masses. Further diagnostic and management algorithms for extraosseous Ewing Sarcoma, particularly in the adult population, are warranted.
Collapse
Affiliation(s)
- Sruti Rachapudi
- School of Medicine, University of Texas Medical Branch, Galveston, TX, USA
| | - Aditya Srinivasan
- Division of Urology, Department of Surgery, University of Texas Medical Branch, 301 University Blvd, Galveston, TX, 77555, USA.
| | - Brendan Gorman
- Division of Urology, Department of Surgery, University of Texas Medical Branch, 301 University Blvd, Galveston, TX, 77555, USA
| | - Alyeesha B Wilhelm
- Department of Pathology, University of Texas Medical Branch, Galveston, TX, USA
| | - Eduardo Eyzaguirre
- Department of Pathology, University of Texas Medical Branch, Galveston, TX, USA
| | - Eduardo Orihuela
- Division of Urology, Department of Surgery, University of Texas Medical Branch, 301 University Blvd, Galveston, TX, 77555, USA
| |
Collapse
|
6
|
Seok D, Nagarkatti S, Cousineau C, Patil S, Jacobs M. OUP accepted manuscript. J Surg Case Rep 2022; 2022:rjac143. [PMID: 35382140 PMCID: PMC8975543 DOI: 10.1093/jscr/rjac143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 03/19/2022] [Indexed: 11/13/2022] Open
Affiliation(s)
- David Seok
- Corresponding address. Department of Surgery, Ascension Providence Hospitals, Southfield Campus, 16001 W Nine Mile Rd. Southfield, MI 48075, USA. Tel: 248-849-3000; E-mail:
| | - Sushruta Nagarkatti
- Department of Surgery, Ascension Providence Hospitals, Southfield Campus, 16001 W Nine Mile Rd. Southfield, MI 48075, USA
| | - Craig Cousineau
- Department of Pathology, Ascension Providence Hospitals, Southfield Campus, 16001 W Nine Mile Rd. Southfield, MI 48075, USA
| | - Sachin Patil
- Department of Surgery, Ascension Providence Hospitals, Southfield Campus, 16001 W Nine Mile Rd. Southfield, MI 48075, USA
| | - Michael Jacobs
- Department of Surgery, Ascension Providence Hospitals, Southfield Campus, 16001 W Nine Mile Rd. Southfield, MI 48075, USA
| |
Collapse
|
7
|
Testicular Tumors: A 15-Year Archive Review and Histopathological Evaluation. JOURNAL OF CONTEMPORARY MEDICINE 2021. [DOI: 10.16899/jcm.929096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
|
8
|
Rafailidis V, Huang DY, Sidhu PS. Paratesticular lesions: Aetiology and appearances on ultrasound. Andrology 2021; 9:1383-1394. [PMID: 33864338 DOI: 10.1111/andr.13021] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Accepted: 04/12/2021] [Indexed: 12/20/2022]
Abstract
BACKGROUND Ultrasound (US) is the primary modality for the investigation of scrotal pathology, including both intra- and paratesticular abnormalities. OBJECTIVE To describe the abnormalities of the paratesticular space. MATERIALS/METHODS The paratesticular space contains the epididymis, spermatic cord and the tunica vaginalis cavity and is affected by a variety of inflammatory or tumoral entities. Differential diagnosis based on US criteria is frequently problematic, as the findings are non-specific. RESULTS Some general rules apply: (i) unlike testicular lesions, extra-testicular entities are usually benign in the adult, (ii) the first steps to accurate diagnosis include careful localization of the lesion and assessment of its consistency (solid or cystic) and (iii) magnetic resonance imaging can be useful for further tissue characterization of lesions suspected to contain fat, but surgical biopsy will often provide the definite diagnosis. Contrast-enhanced ultrasound (CEUS) has been applied with limited experience indicating a narrow role, primarily for the differential diagnosis of echogenic cystic entities and the delineation of a necrotic abscess from a solid neoplasm. DISCUSSION The various abnormalities are discussed and illustrated. CONCLUSION This manuscript summarizes the literature on paratesticular lesions and the value of US in diagnosis.
Collapse
Affiliation(s)
- Vasileios Rafailidis
- Department of Radiology, King's College London, King's College Hospital, London, UK
| | - Dean Y Huang
- Department of Radiology, King's College London, King's College Hospital, London, UK
| | - Paul S Sidhu
- Department of Radiology, King's College London, King's College Hospital, London, UK
| |
Collapse
|
9
|
Abstract
PURPOSE OF REVIEW The presence of vascular solid tumors within the testicle is considered to be malignant until proven otherwise. However, it is prudent for clinicians to be aware of rare benign and malignant intratesticular lesions as management can differ from the established treatment algorithms for germ-cell tumors. RECENT FINDINGS Utilizing certain histopathologic findings can assist with the diagnosis of rare testis tumors. Often times the tumor subtypes are an important consideration in the grading and classification of the disease, which drives management. The multidisciplinary management of rare malignant testis tumors at an experienced center seems to provide optimal patient outcomes. Regardless of the primary treatment, prolonged follow-up for sex cord stromal tumors and other rare testis malignancies is advocated due to the delayed metastatic potential. SUMMARY The clinical presentation of rare benign and malignant testis tumors is often similar to that of germ-cell tumors. Likewise, imaging characteristics are also often indistinguishable. However, the management of these rare tumors is often different from the well established treatment algorithms of germ-cell tumors. To that end, it is important for the practicing urologist to be familiar with the current principles of these tumor characteristics and the management.
Collapse
|
10
|
Abstract
Testicular cancer is responsible for approximately 0.1% of all cancer deaths in the USA, and seminoma is the most common type of testicular tumor. Ultrasonography is the primary imaging modality for accessing testicular and extratesticular lesions, while magnetic resonance imaging can be used for problem solving in lesion characterization in certain cases. CT imaging is usually performed for retroperitoneal staging of testicular cancer metastasis and follow-up after treatment. Extratesticular masses are common, yet rarely malignant. Imaging plays an important role in primary diagnosis of testicular cancer and differentiating it from common non-neoplastic findings. The purpose of this article is to review various imaging findings in testicular and extratesticular masses.
Collapse
|
11
|
BAP1 Loss is a Useful Adjunct to Distinguish Malignant Mesothelioma Including the Adenomatoid-like Variant From Benign Adenomatoid Tumors. Appl Immunohistochem Mol Morphol 2020; 28:67-73. [DOI: 10.1097/pai.0000000000000700] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
12
|
叶 剑, 王 冰, 马 潞, 赵 磊, 王 国, 洪 锴. [Organ-sparing partial orchietectomy for testicular adenomatoid tumor]. BEIJING DA XUE XUE BAO. YI XUE BAN = JOURNAL OF PEKING UNIVERSITY. HEALTH SCIENCES 2019; 51:365-368. [PMID: 30996385 PMCID: PMC7441214 DOI: 10.19723/j.issn.1671-167x.2019.02.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Indexed: 06/09/2023]
Abstract
OBJECTIVE The incidence of testicular tumors is relatively low which are mainly malignant, so the main way to treat testicular tumors is radical testicular resection. Testicular adenomatoid tumor is a rare testicular benign tumor, but is easily misdiagnosed as malignant tumors with removal of organs. This article aims to explore the clinical features of testicular adenomatoid tumor and its treatment. METHODS There were 133 cases of testicular tumor in the Peking University Third Hospital from May 1994 to November 2016. We conducted a retrospective analysis of three patients who underwent the treatment of partial orchiectomy with preservation of the organ and were pathologically diagnosed with testicular adenomatoid tumor after surgery. The follow-up was done by outpatient clinics and telephone inquiry after surgery. The related literature was also reviewed for further discussion. RESULTS Of all the 133 patients, 116 had radical resection of the testis and 17 had partial testicular resection due to specific reasons (5 cases of epidermoid cyst, 4 cases of teratoma, 3 cases of seminoma, 3 cases of adenomatoid tumor, and 2 cases of Sertoli cell tumor). The mean age of the 3 patients was (42.67±10.97) years (30-49 years), the mean hospital stay was (9.00±5.20) d (6-15 d), the mean body mass index was (26.20±1.42) kg/m2 (25.00-27.76 kg/m2), the mean serum human choionic gonadotophin (HCG) was (1.15±0.11) IU/L (1.07-1.23 IU/L) (all normal) and the mean serum alpha-fetoprotein (AFP) was (2.12±0.66) μg/L (1.65-2.58 μg/L) (both were normal). Ultrasound features revealed a clear or unclear border, solid, moderate echo nodule tumor in the testis. The mean maximal diameter of the tumor was (1.00±0.44) cm (0.50-1.30 cm), and the mean duration of intraoperative warm ischemia time was (19.67±17.10) min (0-31 min) (only the last two cases). No recurrence or malignant transformation was observed during the follow-up. CONCLUSION Testicular adenomatoid tumor is mainly based on the characteristics of ultrasound to determine preoperatively, but easy to be misdiagnosed with testicular radical resection. The recommended surgery for adenomatoid tumor is partial resection of the testis via the inguinal approach according to the frozen section pathology to determine whether to retain the organ.
Collapse
Affiliation(s)
- 剑飞 叶
- />北京大学第三医院泌尿外科,北京 100191Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - 冰 王
- />北京大学第三医院泌尿外科,北京 100191Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - 潞林 马
- />北京大学第三医院泌尿外科,北京 100191Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - 磊 赵
- />北京大学第三医院泌尿外科,北京 100191Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - 国良 王
- />北京大学第三医院泌尿外科,北京 100191Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - 锴 洪
- />北京大学第三医院泌尿外科,北京 100191Department of Urology, Peking University Third Hospital, Beijing 100191, China
| |
Collapse
|
13
|
Abstract
Ultrasound is the imaging modality of choice to evaluate the scrotum because of its high resolution, Doppler capabilities, availability, and lack of ionizing radiation. Acute urologic emergencies diagnosed with ultrasound include testicular torsion, testicular rupture, and Fournier gangrene. The radiologist's knowledge of sonographic features of vascular, infectious, traumatic, and benign and malignant processes that occur in the scrotum coupled with the patient's presenting symptoms, age, and physical examination allows for the correct diagnosis of a wide spectrum of scrotal pathology.
Collapse
Affiliation(s)
- Kristin Rebik
- Department of Radiological Sciences, University of Oklahoma Health Sciences Center, Garrison Tower, Suite 4G4250, Oklahoma City, OK 73104, USA.
| | - Jason M Wagner
- Department of Radiological Sciences, University of Oklahoma Health Sciences Center, Garrison Tower, Suite 4G4250, Oklahoma City, OK 73104, USA
| | - William Middleton
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, 510 South Kingshighway Boulevard, St Louis, MO 63110, USA
| |
Collapse
|
14
|
Mooney KL, Kao CS. A Contemporary Review of Common Adult Non-germ Cell Tumors of the Testis and Paratestis. Surg Pathol Clin 2018; 11:739-758. [PMID: 30447839 DOI: 10.1016/j.path.2018.07.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
This article provides a comprehensive review of non-germ cell tumors of the testis and paratestis in adults, incorporating the latest 2016 World Health Organization updates. Clinical features, gross pathologic findings, key morphologic details, immunohistochemical profiles, and differential diagnoses are covered, with an emphasis on how to resolve commonly encountered, and sometimes difficult, differential diagnoses.
Collapse
Affiliation(s)
- Kelly L Mooney
- Department of Pathology, Stanford University School of Medicine, 300 Pasteur Drive, L235, Stanford, CA 94305, USA
| | - Chia-Sui Kao
- Department of Pathology, Stanford University School of Medicine, 300 Pasteur Drive, L235, Stanford, CA 94305, USA.
| |
Collapse
|
15
|
Musani V, Ozretić P, Trnski D, Sabol M, Poduje S, Tošić M, Šitum M, Levanat S. Potential hot spot for de novo mutations in PTCH1 gene in Gorlin syndrome patients: a case report of twins from Croatia. Croat Med J 2018; 59:20-24. [PMID: 29498494 PMCID: PMC5833102 DOI: 10.3325/cmj.2018.59.20] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
We describe a case of twins with sporadic Gorlin syndrome. Both twins had common Gorlin syndrome features including calcification of the falx cerebri, multiple jaw keratocysts, and multiple basal cell carcinomas, but with different expressivity. One brother also had benign testicular mesothelioma. We propose this tumor type as a possible new feature of Gorlin syndrome. Gorlin syndrome is a rare autosomal dominant disorder characterized by both developmental abnormalities and cancer predisposition, with variable expression of various developmental abnormalities and different types of tumors. The syndrome is primarily caused by mutations in the Patched 1 (PTCH1) gene, although rare mutations of Patched 2 (PTCH2) or Suppressor of Fused (SUFU) genes have also been found. Neither founder mutations nor hot spot locations have been described for PTCH1 in Gorlin syndrome patients. Although de novo mutations of the PTCH1 gene occur in almost 50% of Gorlin syndrome cases, there are a few recurrent mutations. Our twin patients were carriers of a de novo mutation in the PTCH1 gene, c.3364_3365delAT (p.Met1122ValfsX22). This is, to our knowledge, the first Gorlin syndrome-causing mutation that has been reported four independent times in distant geographical locations. Therefore, we propose the location of the described mutation as a potential hot spot for mutations in PTCH1.
Collapse
Affiliation(s)
- Vesna Musani
- Vesna Musani, Division of Molecular Medicine, Ruđer Bošković Institute, Bijenička 54, 10000 Zagreb, Croatia,
| | | | | | | | | | | | | | | |
Collapse
|
16
|
A Case Report of an Adenomatoid Tumor of the Uterus Mimicking an Endometrioid Adenocarcinoma on Endometrial Curetting: a Diagnostic Pitfall. Appl Immunohistochem Mol Morphol 2018; 28:e49-e52. [PMID: 29406333 DOI: 10.1097/pai.0000000000000614] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Adenomatoid tumors (AT) arising in the female genital tract are usually incidental findings occurring most often in the fallopian tube and uterine serosa and rarely in the myometrium. In the myometrium, they appear grossly as deep seated, small, firm, ill circumscribed nodules mimicking leiomyoma. Histologically they show a glandular and invasive pattern making well-differentiated/low-grade endometrioid adenocarcinoma a major differential diagnosis. However, this differential is rarely encountered in practice because myometrial AT is usually seen on the hysterectomy specimen, because of their anatomic position in the deep myometrium, and only rarely in endometrial curettings. Our case is the first to report an AT, which presented as a polyp with associated fibroid on hysterescopic examination. Microscopically, the endometrial curetting and myomectomy showed irregular glands and cystic structures with occasional cytokeratin positive single signet-ring like cells invading into the myometrium, features consistent with low-grade endometrioid adenocarcinoma. On hysterectomy specimen, there was an ill-defined 5 cm mass in the myometrium with protrusion into the endometrium. The morphology was similar to that seen in the endometrial curetting. A larger panel of immunostains was done and the neoplastic cells were positive for AE1/3, CK7, CAM5.2, calretinin, and D2-40 and negative for CD34. A diagnosis of AT was rendered and no further treatment was required. Although AT is rarely seen in endometrial curetting, they should be in the differential diagnosis of glandular lesions to avoid pitfalls and unnecessary management especially in young patients desiring fertility.
Collapse
|
17
|
Pichler R, Tulchiner G, Steinkohl F, Soleiman A, Horninger W, Heidegger IM, Aigner F. Adenomatoid tumor of the testis mimicking malignant testicular cancer on multiparametric ultrasound. Eur J Med Res 2018; 23:3. [PMID: 29325584 PMCID: PMC5765709 DOI: 10.1186/s40001-018-0301-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Accepted: 01/02/2018] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Adenomatoid tumor is one of the most common histological subtypes of paratesticular cancer arising from the epididymis. In very rare cases, these tumors appear as intratesticular lesions originating in the tunica albuginea, representing a diagnostic challenge. CASE PRESENTATION We present a case of a 51-year-old man with a small (0.9 cm) hyperechoic lesion of the left testicle mimicking testicular cancer on multiparametric ultrasound. The lesion was localized in the peripheral zone, confirming vascularization and increased stiffness on contrast-enhanced ultrasound and real-time elastography. Preoperative tumor markers and hormone levels were within normal ranges. Staging computed tomography was negative. Organ-sparing surgery with tumor enucleation and frozen section analysis was performed, confirming testicular adenomatoid tumor. CONCLUSION Currently, no typical ultrasound features can definitively distinguish intratesticular adenomatoid tumors from malignant testicular masses. Thus, a surgical approach is almost always considered in such a case for both diagnostic and therapeutic purposes.
Collapse
Affiliation(s)
- Renate Pichler
- Department of Urology, Medical University of Innsbruck, Anichstreet 35, 6020, Innsbruck, Austria.
| | - Gennadi Tulchiner
- Department of Urology, Medical University of Innsbruck, Anichstreet 35, 6020, Innsbruck, Austria
| | - Fabian Steinkohl
- Department of Radiology, Medical University of Innsbruck, Innsbruck, Austria
| | - Afschin Soleiman
- Clinical Pathology and Cytodiagnostics, Tyrolean State Hospitals Ltd., Innsbruck, Austria
| | - Wolfgang Horninger
- Department of Urology, Medical University of Innsbruck, Anichstreet 35, 6020, Innsbruck, Austria
| | - Isabel Maria Heidegger
- Department of Urology, Medical University of Innsbruck, Anichstreet 35, 6020, Innsbruck, Austria.
| | - Friedrich Aigner
- Department of Radiology, Medical University of Innsbruck, Innsbruck, Austria
| |
Collapse
|
18
|
Ovarian Adenomatoid Tumor Coexisting with Mature Cystic Teratoma: A Rare Case Report. Case Rep Obstet Gynecol 2017; 2017:3702682. [PMID: 29085685 PMCID: PMC5611868 DOI: 10.1155/2017/3702682] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Revised: 07/28/2017] [Accepted: 08/07/2017] [Indexed: 01/01/2023] Open
Abstract
Adenomatoid tumor of the ovary is rare, and so are collision tumors in this location. The most common histological combination of ovarian collision tumors is the coexistence of mature cystic teratoma with ovarian cystadenoma or cystadenocarcinoma. Presented herein is a rare case of ovarian adenomatoid tumor found incidentally and coexisting with mature cystic teratoma. A 44-year-old woman presented with a one-year history of intermittent right-sided pelvic pain. Ultrasound evaluation revealed a heterogeneous cystic mass in the right ovary, and a clinical diagnosis of teratoma was made. The patient subsequently underwent a right salpingo-oophorectomy. Pathological examination revealed a mature cystic teratoma and coexistent adenomatoid tumor. The two tumors were separate and no transitional features were recognized histologically. To our knowledge, no previous report of coexistence of these two tumors has been reported. Both tumors are benign and completely excised; therefore no adverse consequences are expected.
Collapse
|
19
|
Epididymal Adenomatoid Tumor: A Very Rare Paratesticular Tumor of Childhood. Case Rep Med 2016; 2016:9539378. [PMID: 28003830 PMCID: PMC5149645 DOI: 10.1155/2016/9539378] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Accepted: 11/14/2016] [Indexed: 11/17/2022] Open
Abstract
Adenomatoid tumor is an uncommon benign mesothelial neoplasm, usually localized in the epididymis. It is the most common paratesticular tumor of middle-aged patients (average age of clinical presentation: 36 years). However, these tumors in pediatric and pubertal patients are extremely rare. Due to their rarity, we present a case of adenomatoid tumor of the tail of the epididymis in a 16-year-old patient. After systematic research of the current literature, we did not find another case report of epididymal adenomatoid tumor in a male patient aged 16 years old or less. This notice and our concern, as well, about the patient's surveillance protocol during the postoperative period were the motive for this case study.
Collapse
|
20
|
Muturi A, Kotecha V, Ojee C, Mang'oka D, Muthuri J. A caecal pseoudotumour with an incidental adenomatoid testicular tumour in a man with right undescended testis: a case report. World J Surg Oncol 2016; 14:236. [PMID: 27585539 PMCID: PMC5009702 DOI: 10.1186/s12957-016-0995-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2015] [Accepted: 08/23/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Inflammatory pseudotumour refers to a non-malignant tumour-like mass resulting from an inflammatory reaction that is composed of granulation tissue with leukocyte infiltration that commonly occurs in the paediatric or young adult population. These tumours occur more commonly in the lungs and the orbit but rarely does it affect the gastrointestinal tract. It poses a clinical diagnostic challenge since it is a benign condition than can mimic the malignant counterpart. Our case is a rare presentation of the caecal pseudotumour in the presence of a right undescended abdominal testis evaluated as a caecal tumour with a differential diagnosis of a testicular malignancy. CASE PRESENTATION We report a 53-year-old male who presented with clinical signs suggestive of right colon tumour and undescended right testis. Intra-operatively, a caecal mass was found with no clearly discernable appendix and extensive adhesion of the right colon to the retroperitoneum, to the liver and gall bladder. A testis was found adherent to the posterior aspect of the caecum and terminal ileum. A right hemicolectomy was performed. Histopathology findings revealed an inflammatory mass with abundant fibroblast proliferation and chronic inflammatory cells infiltrate, involving bowel wall and periceacal adipose tissue; no malignant cells were identified. The testis had within it an adenomatoid tumour nodule. He had uneventful recovery and was discharged home 7 days post-operatively. At the moment, he is symptoms free. CONCLUSIONS The occurrence of right colonic inflammatory pseudotumour and co-existent adenomatoid testicular tumour arising from a cryptorchid testis is very unusual. This would make one incline towards a malignant testicular lesion in the presence of cryptorchidism. Testicular adenomatoid tumour is a rare benign neoplasm, mostly affecting fully descended testis and usually does not warrant orchidectomy for purposes of preserving testicular function. On the other hand, surgical resection remains the only safe and curative treatment option available for inflammatory pseudotumours.
Collapse
|
21
|
Al Diffalha S, Pambuccian SE, Farooq AV, Barkan GA. Intratesticular adenomatoid tumor: A case report and review of the literature. HUMAN PATHOLOGY: CASE REPORTS 2016. [DOI: 10.1016/j.ehpc.2015.05.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
|
22
|
Annam A, Munden MM, Mehollin-Ray AR, Schady D, Browne LP. Extratesticular masses in children: taking ultrasound beyond paratesticular rhabdomyosarcoma. Pediatr Radiol 2015; 45:1382-91. [PMID: 25786605 DOI: 10.1007/s00247-015-3316-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2014] [Revised: 01/12/2015] [Accepted: 02/10/2015] [Indexed: 10/23/2022]
Abstract
Extratesticular cystic and solid scrotal masses are commonly encountered in pediatrics. The most common extratesticular malignancy is paratesticular rhabdomyosarcoma. The remainder of the common pathologies encountered -- appendage torsion, epididymitis and varicoceles -- are mostly benign. These frequently encountered benign lesions are confidently differentiated from paratesticular rhadbomyosarcoma using high-frequency scrotal sonography in combination with clinical features. Less commonly encountered extratesticular masses may not be as easily classified; however, these also have distinguishing features that can enable differentiation from malignancy. This review discusses the sonographic findings, and relevant clinical and pathological manifestations of the more unusual extratesticular masses encountered in two tertiary pediatric institutions during a 10-year period. While these extratesticular pathologies are encountered relatively infrequently, recognition of their manifestations enables appropriate management.
Collapse
Affiliation(s)
- Aparna Annam
- Department of Pediatric Radiology, Children's Hospital Colorado, 13123 East 16th Ave., Box 125, Aurora, CO, 80045, USA
| | | | | | | | | |
Collapse
|
23
|
|
24
|
Alexiev BA, Xu LF, Heath JE, Twaddell WS, Phelan MW. Adenomatoid Tumor of the Testis With Intratesticular Growth. Int J Surg Pathol 2011; 19:838-42. [DOI: 10.1177/1066896911398656] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Adenomatoid tumor of the male genitourinary tract is a rare benign neoplasm thought to be of mesothelial origin. In exceptional cases, these lesions may involve the testicular parenchyma, of which there are only 9 published cases in the literature. The authors describe a rare case of a testicular tumor in a 41-year-old male with normal tumor markers. Histopathology and immunohistochemical studies revealed an adenomatoid tumor with intratesticular growth. No involvement of the epididymis or testicular membranes was identified. The morphological clues leading to the correct diagnosis of adenomatoid tumor and the possible histogenesis and differential diagnosis are discussed.
Collapse
|