1
|
Metry D, Copp HL, Rialon KL, Iacobas I, Baselga E, Dobyns WB, Drolet B, Frieden IJ, Garzon M, Haggstrom A, Hanson D, Hollenbach L, Keppler-Noreuil KM, Maheshwari M, Siegel DH, Waseem S, Dias M. Delphi Consensus on Diagnostic Criteria for LUMBAR Syndrome. J Pediatr 2024:114101. [PMID: 38759778 DOI: 10.1016/j.jpeds.2024.114101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2024] [Revised: 05/02/2024] [Accepted: 05/09/2024] [Indexed: 05/19/2024]
Abstract
OBJECTIVE To develop consensus on diagnostic criteria for LUMBAR syndrome, the association of segmental infantile hemangiomas that affect the Lower body with Urogenital anomalies, Ulceration, spinal cord Malformations, Bony defects, Anorectal malformations, Arterial anomalies and/or Renal anomalies. STUDY DESIGN These diagnostic criteria were developed by an expert multidisciplinary and multi-institutional team based on analysis of peer-reviewed data, followed by electronic-Delphi consensus of a panel of 61 international pediatric specialists. RESULTS After two Delphi rounds, a 92% or higher level of agreement was reached for each Delphi statement. 98% of panelists agreed with the diagnostic criteria, and 100% agreed the criteria would be useful in clinical practice. The diagnosis of LUMBAR requires the presence of a segmental, or patterned, infantile hemangioma of the lumbosacral, sacrococcygeal, or pelvic cutaneous regions plus one additional criterion of the urogenital, spinal, bony, anorectal, arterial, or renal organ systems. CONCLUSIONS These diagnostic criteria will enhance clinical care by improving screening, detection, and overall awareness of this poorly understood neurocutaneous disorder. The criteria can be utilized by a wide variety of pediatric subspecialists. In addition, formal criteria will improve phenotypic uniformity among LUMBAR syndrome cohorts and a patient registry, allowing investigators to assess clinical features, long-term outcomes, and results of genetic sequencing in a standardized manner. Finally, these criteria will serve as a starting point for prospective studies to establish formal screening and management guidelines.
Collapse
Affiliation(s)
- Denise Metry
- Dept of Dermatology, Texas Children's Hospital, Baylor College of Medicine.
| | | | - Kristy L Rialon
- Dept of Surgery, Division of Pediatric Surgery, Texas Children's Hospital, Baylor College of Medicine
| | - Ionela Iacobas
- Dept of Pediatrics, Cancer and Hematology Centers, Texas Children's Hospital, Baylor College of Medicine
| | - Eulalia Baselga
- Dept of Dermatology, Hospital San Joan de Deu, Barcelona, Spain
| | | | - Beth Drolet
- Dept of Dermatology, University of Wisconsin
| | - Ilona J Frieden
- Depts of Dermatology and Pediatrics, University of California, San Francisco
| | - Maria Garzon
- Depts of Dermatology and Pediatrics, Columbia University
| | | | - Darrell Hanson
- Dept of Orthopedics and Sports Medicine, Houston Methodist Hospital
| | | | | | | | | | - Shamaila Waseem
- Dept of Gastroenterology, Indiana University School of Medicine
| | - Mark Dias
- Dept of Neurosurgery, Pennsylvania State College of Medicine
| |
Collapse
|
2
|
Mologousis MA, Balkin DM, Smith ER, Lidov HGW, Li AM, Yang E, Liang MG. Non-vascular intracranial lesions in three children with PHACE association. Pediatr Dermatol 2024; 41:284-288. [PMID: 37723596 DOI: 10.1111/pde.15423] [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: 05/08/2023] [Accepted: 08/20/2023] [Indexed: 09/20/2023]
Abstract
PHACE (posterior fossa malformations, hemangiomas, arterial anomalies, cardiac anomalies, eye anomalies) association has many recognized clinical features. A link between PHACE and non-vascular intracranial lesions has not been well-described. We report three pediatric patients with PHACE and non-vascular intracranial lesions.
Collapse
Affiliation(s)
- Mia A Mologousis
- Tufts University School of Medicine, Boston, Massachusetts, USA
- Department of Dermatology, Boston Children's Hospital, Boston, Massachusetts, USA
| | - Daniel M Balkin
- Department of Plastic and Oral Surgery, Boston Children's Hospital, Boston, Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
| | - Edward R Smith
- Harvard Medical School, Boston, Massachusetts, USA
- Department of Neurosurgery, Boston Children's Hospital, Boston, Massachusetts, USA
| | - Hart G W Lidov
- Harvard Medical School, Boston, Massachusetts, USA
- Department of Pathology, Boston Children's Hospital, Boston, Massachusetts, USA
| | - Alice M Li
- Department of Pathology, Boston Children's Hospital, Boston, Massachusetts, USA
- Department of Pathology, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Edward Yang
- Harvard Medical School, Boston, Massachusetts, USA
- Department of Radiology, Boston Children's Hospital, Boston, Massachusetts, USA
| | - Marilyn G Liang
- Department of Dermatology, Boston Children's Hospital, Boston, Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
| |
Collapse
|
3
|
Ehara Y, Yoshida Y, Kataoka S, Yoshioka I, Yamamoto O. Rhabdomyomatous Mesenchymal Hamartoma: A New Proposed Clinical Classification of Adult Onset Acquired Type. Acta Derm Venereol 2021; 102:adv00627. [PMID: 34904686 PMCID: PMC9558339 DOI: 10.2340/actadv.v101.170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Affiliation(s)
- Yuko Ehara
- Division of Dermatology, Department of Medicine of Sensory and Motor Organs, Faculty of Medicine, Tottori University, Yonago, Japan.
| | | | | | | | | |
Collapse
|
4
|
Hardy KM, Mullens CL, Mason AC. Recurrent rhabdomyomatous mesenchymal hamartoma: An uncommon benign lesion. JOURNAL OF PEDIATRIC SURGERY CASE REPORTS 2021. [DOI: 10.1016/j.epsc.2021.101983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
|
5
|
Zargari O, Asadi M, Azimi SZ, Mesbah A. Rhabdomyomatous mesenchymal hamartoma presenting as telangiectasia in a 57-year-old man. J Cutan Pathol 2021; 48:1182-1184. [PMID: 33964023 DOI: 10.1111/cup.14044] [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: 02/04/2021] [Revised: 04/25/2021] [Accepted: 05/05/2021] [Indexed: 11/30/2022]
Abstract
Rhabdomyomatous mesenchymal hamartoma (RMH) is a rare congenital malformation of the dermis and subcutaneous tissue. Usually, RMH occurs in the midline of the face and neck region. We described a case of RMH presenting as telangiectasia in a 57-year-old man with a history of pityriasis lichenoides chronicus. Histopathological examination revealed a subepidermal haphazard proliferation of striated muscular tissue perpendicular to the epidermis. These bundles of striated muscular tissue were admixed with adnexal structures. The diagnosis was consistent with RMH. RMH is more common in the neonatal period or in young children, but we should consider it as part of a differential diagnosis in older adults as well.
Collapse
Affiliation(s)
- Omid Zargari
- Skin Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Seyyede Zeinab Azimi
- Center for Research & Training in Skin Diseases & Leprosy, Tehran University of Medical Sciences, Tehran, Iran
| | | |
Collapse
|
6
|
Berklite L, Ozolek J, Wang L, Santoro L, Donofrio V, Stracuzzi A, John I, Alaggio R. Pediatric Benign Tumors With a Skeletal Muscle Component: Myogenin Expression, Diagnostic Pitfalls, and New Molecular Insights. Pediatr Dev Pathol 2021; 24:213-226. [PMID: 33683985 DOI: 10.1177/1093526621998932] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
OBJECTIVES Benign tumors with skeletal muscle differentiation are rare and their characterization in the literature is limited. We present a series of twelve pediatric benign tumors with rhabdomyomatous differentiation including seven rhabdomyomatous mesenchymal hamartomas, four fetal rhabdomyomas, and one benign triton tumor, analyzing myogenic markers as well as clinicopathologic and molecular features. A review of the literature was also performed with an emphasis on myogenic marker expression and correlation with molecular features. METHODS AND RESULTS Cases obtained from three tertiary pediatric hospitals were retrospectively reviewed. Eleven of twelve cases expressed myogenin in rare to greater than 15% of cells. Five of nine cases had rare to 70-80% of cells positive for MyoD1. One fetal rhabdomyoma demonstrated homozygous deletions in ZEB2. The benign triton tumor harbored a CTNNB1 mutation. Review of the literature identified 160 pediatric benign tumors with skeletal muscle differentiation of which 9 reported myogenin positivity. CONCLUSIONS Myogenin and MyoD1 may be variably expressed in benign lesions with skeletal muscle differentiation. Recognition of key morphologic features remains critical to diagnose these lesions and, in rhabdomyoma, to exclude malignancy. Our series expands the knowledge of the relationship between rhabdomyoma and rhabdomyosarcoma (RMS) by identifying a shared molecular alteration in ZEB2.
Collapse
Affiliation(s)
- Lara Berklite
- Department of Pathology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
| | - John Ozolek
- Department of Pathology, Anatomy and Laboratory Medicine, West Virginia University, 64 Medical Center Drive, Morgantown, West Virginia
| | - Larry Wang
- Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, University of Southern California, Los Angeles, California
| | - Luisa Santoro
- Department of Pathology, Azienda Ospedaliera di Padova, Padova, Italy
| | - Vittoria Donofrio
- Department of Pathology, Ospedale Pediatrico Pausilipon, Napoli, Italy
| | | | - Ivy John
- Department of Pathology, University of Pittsburgh Medical Center Shadyside Hospital, Pittsburgh, Pennsylvania
| | - Rita Alaggio
- Department of Pathology, Ospedale Pediatrico Bambino Gesú, Rome, Italy
| |
Collapse
|
7
|
González IA, Dehner LP. Smooth muscle hamartoma and striated muscle hamartoma: Clinicopathologic characterization of two rare entities and literature review. J Cutan Pathol 2020; 48:237-246. [PMID: 32804407 DOI: 10.1111/cup.13850] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 08/04/2020] [Accepted: 08/12/2020] [Indexed: 12/13/2022]
Abstract
Smooth muscle hamartoma (SMH) and striated muscle hamartoma (STH) are anomalous proliferations of smooth muscle or striated muscle, respectively, in anatomic sites where these tissues are normally present. To date, only limited cases have been reported describing these lesions. In this study, we sought to characterize the clinicopathologic features of both SMH and STH. A total of 27 cases of SMH and 12 cases of STH from 1990 to 2020 were identified. SMH cases had a slight male predominance (63%) and a mean age of presentation of 20 years (range: 4 months-91 years), with a mean size of 9.3 mm (±13.3). In contrast, STH were equally distributed in gender, with a mean age of presentation of 40 years (range: 3 months-66 years) and a mean size of 5.7 mm (±3.6). SMH were more commonly located in the torso and extremities (70%) and STH in the head and neck area (92%). One case of SMH recurred after 1.1 years and in the initial diagnosis the lesion was present at the tissue edge. None of the cases of STH had a recurrence. We present the largest cohort of SMH and STH, and report the first case of a recurrent SMH, suggesting the importance of obtaining a clean margin for these lesions.
Collapse
Affiliation(s)
- Iván A González
- The Lauren V. Ackerman Laboratory of Surgical Pathology, Department of Pathology and Immunology, St. Louis Children's Hospital, Washington University School of Medicine, St. Louis, Missouri, USA.,The Lauren V. Ackerman Laboratory of Surgical Pathology, Department of Pediatrics, St. Louis Children's Hospital, Washington University School of Medicine, St. Louis, Missouri, USA.,Department of Pathology, Yale School of Medicine, New Haven, Connecticut, USA
| | - Louis P Dehner
- The Lauren V. Ackerman Laboratory of Surgical Pathology, Department of Pediatrics, St. Louis Children's Hospital, Washington University School of Medicine, St. Louis, Missouri, USA
| |
Collapse
|
8
|
Zarbo A, Luk KM, Shwayder TA, Friedman BJ. Congenital midline nodules on the chin and sternum. Pediatr Dermatol 2020; 37:1145-1146. [PMID: 33283934 DOI: 10.1111/pde.14261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Allison Zarbo
- Department of Dermatology, Henry Ford Health System, Detroit, Michigan, USA.,Division of Pediatric Dermatology, Henry Ford Health System, Detroit, Michigan, USA
| | - Kevin M Luk
- Department of Dermatology, Henry Ford Health System, Detroit, Michigan, USA
| | - Tor A Shwayder
- Department of Dermatology, Henry Ford Health System, Detroit, Michigan, USA.,Division of Pediatric Dermatology, Henry Ford Health System, Detroit, Michigan, USA
| | - Ben J Friedman
- Department of Dermatology, Henry Ford Health System, Detroit, Michigan, USA.,Pathology and Laboratory Medicine, Henry Ford Health System, Detroit, Michigan, USA
| |
Collapse
|
9
|
Marinelli LM, Wohltmann WE, Myers KD, Sasaki GT. Rhabdomyomatous mesenchymal hamartoma presenting as a chin nodule in a 15-year-old male. J Cutan Pathol 2020; 48:322-324. [PMID: 32779208 DOI: 10.1111/cup.13839] [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: 05/25/2020] [Revised: 07/30/2020] [Accepted: 08/04/2020] [Indexed: 11/27/2022]
Abstract
Rhabdomyomatous mesenchymal hamartoma (RMH), also known as congenital midline hamartoma and striated muscle hamartoma, is a rare congenital malformation presenting most commonly in midline sites of the head and neck region. Since its first description in 1986, 67 cases have been reported to date. We report a case of RMH presenting as a chin nodule in an otherwise healthy 15-year-old male. The patient presented with a dome-shaped subcutaneous lesion on his chin which had been present since birth, but had grown and was interfering with his ability to shave. He otherwise had no history of congenital anomalies or malformations. Histopathological examination of the excised lesion revealed a haphazard proliferation of striated muscle admixed with adipose tissue and adnexal structures within the dermis and subcutaneous tissue, consistent with a diagnosis of RMH. While the majority of reported cases are of newborns or children under 3 years of age, RMH may not come to clinical attention until later in life. This rare malformation should be included in the differential diagnosis of lesions containing dermal striated muscle and/or adipose tissue, to include nevus lipomatosus superficialis, fibrous hamartoma of infancy, neuromuscular choristoma, fetal rhabdomyoma, and rhabdomyosarcoma.
Collapse
Affiliation(s)
- Lisa M Marinelli
- Department of Pathology and Area Laboratory Service, San Antonio Military Medical Center, San Antonio, Texas, USA
| | - Wendi E Wohltmann
- Departments of Dermatology and Pathology, San Antonio Military Medical Center, San Antonio, Texas, USA
| | | | | |
Collapse
|
10
|
Lin CP, Nguyen JM, Aboutalebi S, Stetson CL. Incidental rhabdomyomatous mesenchymal hamartoma. Proc (Bayl Univ Med Cent) 2020; 34:161-162. [PMID: 33456186 DOI: 10.1080/08998280.2020.1801087] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Abstract
Rhabdomyomatous mesenchymal hamartoma (RMH) is a rare congenital tumor of the dermal and subcutaneous tissues, often presenting as a papule or a pedunculated or sessile mass at the midline on the head and neck. Although RMH is benign, some cases have reported associations with other congenital and syndromic anomalies. Thus, an accurate diagnosis is important, as an internal or systemic evaluation of the patient may be warranted. We report a case of a solitary RMH on the midline upper chest in a healthy 15-year-old girl.
Collapse
Affiliation(s)
- Christine P Lin
- School of Medicine, Texas Tech University Health Sciences Center, Lubbock, Texas
| | - Jeannie M Nguyen
- Department of Dermatology, Texas Tech University Health Sciences Center, Lubbock, Texas
| | - Sina Aboutalebi
- Department of Dermatology, Abilene Dermatology & Skin Surgery Center, Abilene, Texas
| | - Cloyce L Stetson
- Department of Dermatology, Texas Tech University Health Sciences Center, Lubbock, Texas
| |
Collapse
|
11
|
Stefanko NS, Davies OMT, Beato MJ, Blei F, Drolet BA, Fairley J, Frieden IJ, Galligan ER, Goddard D, Howard R, Husain S, Lauren CT, Lopez-Gutierrez JC, MacArthur C, Metry DW, Morel KD, Niedt GW, Garzon MC, Sokumbi O, Siegel DH. Hamartomas and midline anomalies in association with infantile hemangiomas, PHACE, and LUMBAR syndromes. Pediatr Dermatol 2020; 37:78-85. [PMID: 31631401 DOI: 10.1111/pde.14006] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND/OBJECTIVE The pathogenesis of infantile hemangiomas (IH), PHACE, and LUMBAR syndromes remains unknown. We aim to describe histopathologic features of midline anomalies associated with IH, including patients with PHACE and LUMBAR syndromes. METHODS A multicenter retrospective chart review was performed to identify patients with IH, PHACE, and LUMBAR syndrome with histopathologic specimens from sternal or midline anomalies. A total of 18 midline lesions from 13 patients were included. Out of 18, 14 midline lesions underwent both histopathologic and clinical review. Three hamartoma-like chin plaques and one supraumbilical raphe underwent only clinical review. RESULTS All 13 patients had midline lesions and IH. Histopathologic diagnoses were as follows: rhabdomyomatous mesenchymal hamartoma (3), folliculosebaceous cystic hamartoma (1), fibroepithelial polyp (1), verrucous epidermal hyperplasia with vascular proliferation and fibroplasia (1), congenital midline cervical cleft (1), pericardium with fibrosis (1), fibrous components with increased collagen (1), atrophic skin/membrane (3), angiolipomatous mass with neural components (1), and lipomatous mass (1). Due to the retrospective nature of this study, it was not possible to obtain pathology slides for all midline lesions that had previously been biopsied or resected. We show clinically and histopathologically a new association between PHACE syndrome and rhabdomyomatous mesenchymal hamartoma (RMH), in addition to demonstrating the association between PHACE syndrome and chin hamartomas. We also display histopathologic findings seen in midline lesions resected from LUMBAR patients. CONCLUSION Rhabdomyomatous mesenchymal hamartoma is thought to be related to aberrations of mesenchymal cells during development; therefore, this may provide clues to the pathogenesis of IH and related syndromes.
Collapse
Affiliation(s)
| | | | - Maria Jose Beato
- Vascular Anomalies Center, La Paz Children's Hospital, Madrid, Spain
| | - Francine Blei
- Lennox Hill Hospital of Northwell Health, New York, New York
| | - Beth A Drolet
- University of Wisconsin-Madison School of Medicine and Public Health, Madison, Wisconsin
| | | | | | | | | | - Renee Howard
- University of California, San Francisco, California
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
12
|
Fontecilla NM, Weitz NA, Day C, Golas AR, Grossman ME, Reiffel R. Rhabdomyomatous mesenchymal hamartoma presenting as a skin tag in a newborn. JAAD Case Rep 2016; 2:222-3. [PMID: 27299150 PMCID: PMC4890107 DOI: 10.1016/j.jdcr.2016.03.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Affiliation(s)
| | - Nicole A. Weitz
- Department of Dermatology, Columbia University Medical Center, New York, New York
- Correspondence to: Nicole A. Weitz, MD, Department of Dermatology, Herbert Irving Pavillion, 12th Floor, 161 Fort Washington Ave, New York, NY 10032.Department of DermatologyHerbert Irving Pavillion12th Floor, 161 Fort Washington AveNew YorkNY10032
| | - Christina Day
- White Plains Hospital Center, White Plains, New York
| | - Alyssa R. Golas
- Department of Plastic Surgery, New York University Langone Medical Center, New York, New York
| | - Marc E. Grossman
- Department of Dermatology, Columbia University Medical Center, New York, New York
| | | |
Collapse
|
13
|
Frouin E, Riviere B, Maillet O, Willems M, Kalfa N, Costes V, Bessis D. Coccygeal polypoid eccrine nevus associated with imperforate anus and unilateral multicystic kidney dysplasia. J Cutan Pathol 2016; 43:697-701. [PMID: 27080330 DOI: 10.1111/cup.12718] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Revised: 02/18/2016] [Accepted: 04/10/2016] [Indexed: 11/27/2022]
Abstract
Eccrine nevi are rare hamartomas characterized by an increase in the number or size of eccrine glands. A polypoid form located in the coccygeal area has been described in a few cases and termed coccygeal polypoid eccrine nevus (CPEN). No association with internal malformations was reported in any of these cases. We describe herein a case of CPEN associated with imperforate anus and unilateral multicystic kidney dysplasia. We review the clinical and pathological characteristics of CPENs and discuss the differential diagnoses.
Collapse
Affiliation(s)
- Eric Frouin
- Department of Pathology, CHU Poitiers, Poitiers, France
| | - Benjamin Riviere
- Department of Pathology, CHU and University of Montpellier, Montpellier, France
| | - Olivier Maillet
- Department of Pediatric Surgery, CHU Montpellier and University of Montpellier, Montpellier, France
| | - Marjolaine Willems
- Department of Medical Genetics, CHU Montpellier and University of Montpellier, Montpellier, France
| | - Nicolas Kalfa
- Department of Pediatric Surgery, CHU Montpellier and University of Montpellier, Montpellier, France
| | - Valerie Costes
- Department of Pathology, CHU and University of Montpellier, Montpellier, France
| | - Didier Bessis
- Department of Dermatology, CHU de Montpellier and University of Montpellier, Montpellier, France
| |
Collapse
|
14
|
Quijano Moreno SL, Lozano Salazar AD, Del Mar Berenguel Ibáñez M, Reina Duarte Á, Gonzales Campora R. "Sclerosing" Pelvic Floor Rhabdomyoma. Int J Surg Pathol 2015; 24:159-62. [PMID: 26519526 DOI: 10.1177/1066896915614895] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
PURPOSE This article reports on a sclerosing perineal-perianal rhabdomyoma in an adult woman. A review of the literature disclosed no reference to this histological form of rhabdomyoma in women. METHODS AND RESULTS We describe the case of a 48-year-old woman. At physical examination, a firm nodular lesion was identified in the left lateral perianal-perineal region. Histologically, it comprised rounded and elongated muscle fibers displaying no evident atypia, within a stroma exhibiting marked sclerosis and mild lymphoid infiltrate. At immunohistochemical examination, tumor cells stained for desmin, muscle-specific actin, and myogenin. CONCLUSIONS Skeletal muscle rhabdomyomas are rare benign tumors, generally divided into 3 major categories depending on their clinical and morphological characteristics: fetal, adult, and genital. An unusual histological variant of the genital form has recently been reported in men, characterized by the presence of predominantly mature muscle fibers and marked sclerosis. We document such a lesion in a female patient for the first time.
Collapse
|