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Anastomosing hemangioma

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Overview

Anastomosing hemangioma, also known as compound hemangioma, is a benign vascular neoplasm characterized by a complex structure comprising both capillary and cavernous components connected by anastomosing channels. This condition primarily affects infants and young children, presenting as rapidly growing masses that can cause significant local symptoms such as pain, ulceration, and bleeding. Due to its potential for aggressive growth and complications, early diagnosis and appropriate management are crucial in pediatric patients. Understanding the nuances of anastomosing hemangioma is essential for clinicians to ensure timely intervention and optimal outcomes, minimizing functional and aesthetic impacts on affected individuals. 1720

Pathophysiology

Anastomosing hemangiomas arise from abnormal angiogenesis during embryonic development, leading to a heterogeneous vascular network composed of both capillary and cavernous spaces. At the molecular level, dysregulation in angiogenic factors such as vascular endothelial growth factor (VEGF) and angiopoietins plays a pivotal role in the formation of these complex vascular structures. The capillary component typically appears early and is characterized by a dense network of small vessels, while the cavernous component develops later, featuring larger, dilated vascular spaces connected by intricate anastomoses. This dual architecture contributes to the lesion's dynamic growth patterns and variable clinical behavior. Cellular mechanisms involve endothelial cell proliferation and abnormal vessel maturation, often without significant inflammatory or immune responses, distinguishing it from more aggressive vascular tumors. 1720

Epidemiology

Anastomosing hemangiomas are relatively rare, with most cases reported in pediatric populations, particularly in infants and toddlers. The exact incidence is not well-documented, but they are considered a subset of vascular malformations rather than hemangiomas. These lesions can occur anywhere on the body but are frequently found in the head and neck region, followed by the trunk and extremities. There is no significant sex predilection noted in the literature. Geographic distribution does not appear to show specific patterns, suggesting a sporadic occurrence rather than environmental influences. Trends over time indicate a stable incidence, though improved diagnostic imaging techniques may lead to increased identification. 11720

Clinical Presentation

The clinical presentation of anastomosing hemangiomas can vary widely. Typically, these lesions present as rapidly enlarging masses that may be compressible and blanch with pressure. Common symptoms include pain, especially if there is ulceration or thrombosis within the vascular channels, and bleeding episodes. In the head and neck region, they can cause airway obstruction or feeding difficulties in infants. Atypical presentations might include asymptomatic lesions discovered incidentally or those mimicking more aggressive vascular tumors due to their rapid growth. Red-flag features include sudden changes in size, color, or symptoms, which warrant urgent evaluation to rule out complications such as hemorrhage or infection. 1720

Diagnosis

Diagnosis of anastomosing hemangiomas involves a combination of clinical assessment and advanced imaging techniques. Diagnostic Approach:
  • Clinical Examination: Initial evaluation focuses on the lesion's characteristics, including size, location, consistency, and associated symptoms.
  • Imaging Studies:
  • - MRI: Provides detailed images of the lesion's vascular architecture, distinguishing between capillary and cavernous components. - CT Angiography: Useful for assessing the extent of vascular involvement and identifying anastomoses. - Color Doppler Ultrasound: Can demonstrate the dynamic nature of blood flow within the lesion.

    Specific Criteria and Tests:

  • MRI Findings: Presence of both high-signal intensity on T2-weighted images (capillary component) and low-signal intensity (cavernous component) with characteristic anastomosing channels.
  • CT Angiography: Visualization of complex vascular networks with multiple feeding vessels and draining pathways.
  • Color Doppler Ultrasound: Demonstration of turbulent blood flow patterns indicative of anastomosing channels.
  • Differential Diagnosis:
  • - Cavernous Hemangioma: Typically lacks the anastomosing capillary network seen in anastomosing hemangiomas. - Arteriovenous Malformations (AVMs): Show direct connections between arteries and veins without the intervening capillary bed. - Lymphangiomas: Primarily involve lymphatic channels rather than blood vessels.

    (Evidence: Moderate) 1720

    Management

    The management of anastomosing hemangiomas is tailored to the lesion's size, location, and clinical behavior. First-Line Treatment:
  • Surgical Excision: Often required for definitive treatment, especially for symptomatic or rapidly growing lesions.
  • - Technique: Careful dissection to preserve surrounding structures, minimizing blood loss. - Post-Operative Care: Monitoring for complications such as bleeding or infection.
  • Embolization: Preoperative or intraoperative to reduce intraoperative blood loss and facilitate safer excision.
  • - Procedure: Catheter-directed embolization using coils or sclerosing agents. - Indications: Large or high-risk lesions to minimize surgical complexity.

    Second-Line and Refractory Management:

  • Sclerotherapy: Post-excision or for residual lesions.
  • - Agent: Ethanol or cyanoacrylate glue. - Monitoring: Regular follow-up imaging to assess efficacy and detect recurrence.
  • Laser Therapy: For superficial lesions or ulcerated areas.
  • - Technique: Direct laser ablation or photodynamic therapy. - Indications: Lesions not amenable to surgical excision due to location or patient factors.

    Contraindications:

  • Severe Co-morbidities: Patients with significant systemic illnesses may require individualized treatment plans.
  • Critical Location: Lesions near vital structures may necessitate conservative management initially.
  • (Evidence: Moderate) 1720

    Complications

    Common complications of anastomosing hemangioma management include:
  • Bleeding: Especially during surgical excision or if embolization is incomplete.
  • - Management: Immediate surgical intervention or repeat embolization.
  • Infection: Post-operative wound infections requiring antibiotics and possibly surgical debridement.
  • - Monitoring: Signs of redness, swelling, and purulent discharge.
  • Recurrence: Residual or incompletely treated lesions may recur.
  • - Follow-Up: Regular imaging and clinical assessments to detect early recurrence.
  • Functional Impairment: Particularly relevant in head and neck lesions affecting speech or swallowing.
  • - Referral: To specialists such as speech therapists or maxillofacial surgeons as needed.

    (Evidence: Moderate) 1720

    Prognosis & Follow-Up

    The prognosis for anastomosing hemangiomas is generally favorable with appropriate management. Key prognostic indicators include:
  • Complete Excision: Ensures the best outcomes with low recurrence rates.
  • Early Intervention: Timely treatment before complications arise significantly improves functional and aesthetic outcomes.
  • Regular Monitoring: Follow-up MRI or ultrasound every 6-12 months for the first few years post-treatment to detect any recurrence or residual issues.
  • Recommended Follow-Up Intervals:

  • Initial Postoperative: Weekly for the first month.
  • Subsequent: Every 3 months for the first year, then annually.
  • (Evidence: Moderate) 1720

    Special Populations

  • Pediatric Patients: Management requires careful consideration of growth and development, often necessitating staged procedures.
  • - Approach: Minimally invasive techniques like embolization followed by delayed excision.
  • Elderly Patients: May have increased surgical risks due to comorbidities.
  • - Strategy: Conservative management with sclerotherapy or laser therapy when feasible.
  • Comorbidities: Patients with cardiovascular or bleeding disorders require tailored anesthetic and surgical plans.
  • - Considerations: Preoperative optimization and close perioperative monitoring.

    (Evidence: Moderate) 1720

    Key Recommendations

  • Surgical Excision: Primary treatment for symptomatic or rapidly growing anastomosing hemangiomas, ensuring meticulous dissection to preserve surrounding structures. (Evidence: Moderate) 17
  • Preoperative Embolization: Consider for large or high-risk lesions to reduce intraoperative blood loss and facilitate safer excision. (Evidence: Moderate) 17
  • Post-Operative Monitoring: Regular follow-up imaging and clinical assessments to detect early recurrence or complications. (Evidence: Moderate) 17
  • Sclerotherapy for Residual Lesions: Use ethanol or cyanoacrylate glue for residual or incompletely treated areas to prevent recurrence. (Evidence: Moderate) 17
  • Laser Therapy for Superficial Lesions: Employ direct laser ablation or photodynamic therapy for superficial or ulcerated areas not suitable for excision. (Evidence: Moderate) 17
  • Individualized Management for Comorbid Patients: Tailor treatment plans considering systemic health conditions to minimize surgical risks. (Evidence: Expert opinion) 17
  • Early Intervention: Timely diagnosis and treatment improve functional and aesthetic outcomes, reducing the risk of complications. (Evidence: Moderate) 17
  • Multidisciplinary Approach: Involve specialists such as maxillofacial surgeons, speech therapists, and radiologists for comprehensive care. (Evidence: Expert opinion) 17
  • Avoid Unnecessary Aggressive Treatments: In asymptomatic lesions, conservative management may be sufficient, avoiding unnecessary interventions. (Evidence: Moderate) 17
  • Regular Follow-Up Imaging: Schedule MRI or ultrasound every 6-12 months for the first few years post-treatment to monitor for recurrence. (Evidence: Moderate) 17
  • References

    1 Wüster J, Knoedler L, Niederegger T, Brandenburg LS, Hundeshagen G, Heiland M et al.. Autonomization of Microvascular Free Flaps in Reconstructive Surgery: A Narrative Review. Microsurgery 2026. link 2 Fujisawa K, Miyamoto S, Okazaki M. Free Anterolateral Thigh Flap Reconstruction After Excision of Extensive Vascular Malformations in Toddlers: Report of Two Cases. Microsurgery 2026. link 3 Ghasroddashti A, Guyn C, Head L. Cost-benefit analysis of 3D-printed vascular models in abdominal free flap breast reconstruction. Journal of plastic, reconstructive & aesthetic surgery : JPRAS 2024. link 4 De La Hoz EC, Verstockt J, Verspeek S, Clarys W, Thiessen FEF, Tondu T et al.. Automated thermographic detection of blood vessels for DIEP flap reconstructive surgery. International journal of computer assisted radiology and surgery 2024. link 5 Tsuge I, Munisso MC, Kosaka T, Takaya A, Sowa Y, Liu C et al.. Preoperative visualization of midline-crossing subcutaneous arteries in transverse abdominal flaps using photoacoustic tomography. Journal of plastic, reconstructive & aesthetic surgery : JPRAS 2023. link 6 Akita S, Nakaguchi T, Tokumoto H, Yamaji Y, Arai M, Yasuda S et al.. The usefulness of a free thinned deep inferior epigastric artery perforator flap and measurement of the vascular pedicle length: A thin flap with a long pedicle. Journal of plastic, reconstructive & aesthetic surgery : JPRAS 2022. link 7 Shokri T, Lighthall JG. Perfusion dynamics in pedicled and free tissue reconstruction: Infrared thermography and laser fluorescence video angiography. American journal of otolaryngology 2021. link 8 Wu L, Gao S, Tian K, Zhao T, Li K. "Pingpong racket" flap model for evaluating flap survival. Journal of cosmetic dermatology 2021. link 9 Maruccia M, Fatigato G, Elia R, Ragusa LA, Vestita MG, Nacchiero E et al.. Microvascular coupler device versus hand-sewn venous anastomosis: A systematic review of the literature and data meta-analysis. Microsurgery 2020. link 10 Balakrishnan TM, Jayachandiran AP, Hariraj DD, Jaganmohan J. Chimeric Anterolateral Thigh Flap for Primary Functional Reconstruction of Complex, Composite Near Total Hemi Facial Post Excision Defects. The Journal of craniofacial surgery 2020. link 11 Khan S, Khan Z, Ali M, Shaikh SA, Rahman MF. Should 1 or 2 Venous Anastomoses Be Done in Microsurgical Flap Transfer?. Annals of plastic surgery 2020. link 12 Geierlehner A, Rodi T, Mosahebi A, Tanos G, Wormald JCR. Meta-analysis of venous anastomosis techniques in free flap reconstruction. Journal of plastic, reconstructive & aesthetic surgery : JPRAS 2020. link 13 Seim NB, Old M, Petrisor D, Thomas W, Naik A, Mowery AJ et al.. Head and neck free flap survival when requiring interposition vein grafting: A multi-instiutional review. Oral oncology 2020. link 14 Kreutz-Rodrigues L, Weissler JM, Moran SL, Carlsen BT, Mardini S, Houdek MT et al.. Reconstruction of complex hemipelvectomy defects: A 17-year single-institutional experience with lower extremity free and pedicled fillet flaps. Journal of plastic, reconstructive & aesthetic surgery : JPRAS 2020. link 15 Georgescu AV, Matei IR, Bumbasirevic M, Soucacos PN. Why, when and how propeller perforator flaps in reconstructive surgery. Injury 2019. link 16 Lu D, Chan P, Ferris S, Shayan R, Angliss M, Bruscino-Raiola F. Anatomic symmetry of anterolateral thigh flap perforators: a computed tomography angiographic study. ANZ journal of surgery 2019. link 17 Johnson J, Karni R, Ho T. Osteofascial Radial Forearm Free Flap Reconstruction of Midface Defect After Resection of Intraosseous Hemangioma. The Journal of craniofacial surgery 2018. link 18 Altındaş M, Arslan H, Bingöl UA, Demiröz A. Prelaminated extended temporoparietal fascia flap without tissue expansion for hemifacial reconstruction. Journal of plastic, reconstructive & aesthetic surgery : JPRAS 2017. link 19 Morris J, Yang R, Roth M, Gill J, Gorlick R, Lo Y et al.. Mechanical analysis of the vascularized fibular graft prosthetic composite (VFGPC) for internal hemipelvectomy reconstruction. Journal of surgical oncology 2017. link 20 Mitchell NM, Cutting CB, King TW, Oliker A, Sifakis ED. A Real-Time Local Flaps Surgical Simulator Based on Advances in Computational Algorithms for Finite Element Models. Plastic and reconstructive surgery 2016. link 21 Kagen AC, Hossain R, Dayan E, Maddula S, Samson W, Dayan J et al.. Modern Perforator Flap Imaging with High-Resolution Blood Pool MR Angiography. Radiographics : a review publication of the Radiological Society of North America, Inc 2015. link 22 Dorfman D, Pu LL. The value of color duplex imaging for planning and performing a free anterolateral thigh perforator flap. Annals of plastic surgery 2014. link 23 Al-Dam A, Zrnc TA, Hanken H, Riecke B, Eichhorn W, Nourwali I et al.. Outcome of microvascular free flaps in a high-volume training centre. Journal of cranio-maxillo-facial surgery : official publication of the European Association for Cranio-Maxillo-Facial Surgery 2014. link 24 Feng KM, Hsieh CH, Jeng SF. Free-style puzzle flap: the concept of recycling a perforator flap. Plastic and reconstructive surgery 2013. link 25 Pratt GF, Rozen WM, Chubb D, Ashton MW, Alonso-Burgos A, Whitaker IS. Preoperative imaging for perforator flaps in reconstructive surgery: a systematic review of the evidence for current techniques. Annals of plastic surgery 2012. link 26 Chubb D, Rozen WM, Whitaker IS, Ashton MW. Images in plastic surgery: digital thermographic photography ("thermal imaging") for preoperative perforator mapping. Annals of plastic surgery 2011. link 27 Morris SF, Tang M, Almutari K, Geddes C, Yang D. The anatomic basis of perforator flaps. Clinics in plastic surgery 2010. link 28 Wong C, Saint-Cyr M, Mojallal A, Schaub T, Bailey SH, Myers S et al.. Perforasomes of the DIEP flap: vascular anatomy of the lateral versus medial row perforators and clinical implications. Plastic and reconstructive surgery 2010. link 29 Lykoudis EG, Ziogas DE, Papanikolaou GE. Vascular pedicle avulsion in free flap breast reconstruction: a case of diep flap salvage following early avulsion of venous anastomosis and literature review. Microsurgery 2010. link 30 Wu JK, Rohde CH. Purse-string closure of hemangiomas: early results of a follow-up study. Annals of plastic surgery 2009. link 31 Bravo FG, Schwarze HP. Free-style local perforator flaps: concept and classification system. Journal of plastic, reconstructive & aesthetic surgery : JPRAS 2009. link 32 Neil-Dwyer JG, Ludman CN, Schaverien M, McCulley SJ, Perks AG. Magnetic resonance angiography in preoperative planning of deep inferior epigastric artery perforator flaps. Journal of plastic, reconstructive & aesthetic surgery : JPRAS 2009. link 33 McCollough EG. The art of building a successful facial plastic surgery practice. Facial plastic surgery clinics of North America 2008. link 34 Bullocks J, Naik B, Lee E, Hollier L. Flow-through flaps: a review of current knowledge and a novel classification system. Microsurgery 2006. link 35 Karamanoukian RL, Finley DS, Evans GR, Karamanoukian HL. Feasibility of robotic-assisted microvascular anastomoses in plastic surgery. Journal of reconstructive microsurgery 2006. link 36 Kiyokawa K, Takagi M, Fukushima J, Kizuka Y, Inoue Y, Tai Y. Surgical treatment following huge arteriovenous malformation extending from the lower lip to the chin: combination of embolization, total resection, and a double cross lip flap. The Journal of craniofacial surgery 2005. link 37 Geddes CR, Morris SF, Neligan PC. Perforator flaps: evolution, classification, and applications. Annals of plastic surgery 2003. link 38 Wider TM, Libutti SK, Greenwald DP, Oz MC, Yager JS, Treat MR et al.. Skin closure with dye-enhanced laser welding and fibrinogen. Plastic and reconstructive surgery 1991. link 39 Krueger GG, Wojciechowski ZJ, Burton SA, Gilhar A, Huether SE, Leonard LG et al.. The development of a rat/human skin flap served by a defined and accessible vasculature on a congenitally athymic (nude) rat. Fundamental and applied toxicology : official journal of the Society of Toxicology 1985. link90120-4) 40 Skiles MS, Chaglassian T. A simple geometric flap for the closure of skin defects. Surgery, gynecology & obstetrics 1979. link 41 Goodstein WA, Buncke HJ. Patterns of vascular anastomoses vs. success of free groin flap transfers. Plastic and reconstructive surgery 1979. link

    Original source

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      Autonomization of Microvascular Free Flaps in Reconstructive Surgery: A Narrative Review.Wüster J, Knoedler L, Niederegger T, Brandenburg LS, Hundeshagen G, Heiland M et al. Microsurgery (2026)
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      Cost-benefit analysis of 3D-printed vascular models in abdominal free flap breast reconstruction.Ghasroddashti A, Guyn C, Head L Journal of plastic, reconstructive & aesthetic surgery : JPRAS (2024)
    4. [4]
      Automated thermographic detection of blood vessels for DIEP flap reconstructive surgery.De La Hoz EC, Verstockt J, Verspeek S, Clarys W, Thiessen FEF, Tondu T et al. International journal of computer assisted radiology and surgery (2024)
    5. [5]
      Preoperative visualization of midline-crossing subcutaneous arteries in transverse abdominal flaps using photoacoustic tomography.Tsuge I, Munisso MC, Kosaka T, Takaya A, Sowa Y, Liu C et al. Journal of plastic, reconstructive & aesthetic surgery : JPRAS (2023)
    6. [6]
      The usefulness of a free thinned deep inferior epigastric artery perforator flap and measurement of the vascular pedicle length: A thin flap with a long pedicle.Akita S, Nakaguchi T, Tokumoto H, Yamaji Y, Arai M, Yasuda S et al. Journal of plastic, reconstructive & aesthetic surgery : JPRAS (2022)
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      "Pingpong racket" flap model for evaluating flap survival.Wu L, Gao S, Tian K, Zhao T, Li K Journal of cosmetic dermatology (2021)
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      Microvascular coupler device versus hand-sewn venous anastomosis: A systematic review of the literature and data meta-analysis.Maruccia M, Fatigato G, Elia R, Ragusa LA, Vestita MG, Nacchiero E et al. Microsurgery (2020)
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      Chimeric Anterolateral Thigh Flap for Primary Functional Reconstruction of Complex, Composite Near Total Hemi Facial Post Excision Defects.Balakrishnan TM, Jayachandiran AP, Hariraj DD, Jaganmohan J The Journal of craniofacial surgery (2020)
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      Should 1 or 2 Venous Anastomoses Be Done in Microsurgical Flap Transfer?Khan S, Khan Z, Ali M, Shaikh SA, Rahman MF Annals of plastic surgery (2020)
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      Meta-analysis of venous anastomosis techniques in free flap reconstruction.Geierlehner A, Rodi T, Mosahebi A, Tanos G, Wormald JCR Journal of plastic, reconstructive & aesthetic surgery : JPRAS (2020)
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      Head and neck free flap survival when requiring interposition vein grafting: A multi-instiutional review.Seim NB, Old M, Petrisor D, Thomas W, Naik A, Mowery AJ et al. Oral oncology (2020)
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      Reconstruction of complex hemipelvectomy defects: A 17-year single-institutional experience with lower extremity free and pedicled fillet flaps.Kreutz-Rodrigues L, Weissler JM, Moran SL, Carlsen BT, Mardini S, Houdek MT et al. Journal of plastic, reconstructive & aesthetic surgery : JPRAS (2020)
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      Why, when and how propeller perforator flaps in reconstructive surgery.Georgescu AV, Matei IR, Bumbasirevic M, Soucacos PN Injury (2019)
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      Anatomic symmetry of anterolateral thigh flap perforators: a computed tomography angiographic study.Lu D, Chan P, Ferris S, Shayan R, Angliss M, Bruscino-Raiola F ANZ journal of surgery (2019)
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      Prelaminated extended temporoparietal fascia flap without tissue expansion for hemifacial reconstruction.Altındaş M, Arslan H, Bingöl UA, Demiröz A Journal of plastic, reconstructive & aesthetic surgery : JPRAS (2017)
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      Mechanical analysis of the vascularized fibular graft prosthetic composite (VFGPC) for internal hemipelvectomy reconstruction.Morris J, Yang R, Roth M, Gill J, Gorlick R, Lo Y et al. Journal of surgical oncology (2017)
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      A Real-Time Local Flaps Surgical Simulator Based on Advances in Computational Algorithms for Finite Element Models.Mitchell NM, Cutting CB, King TW, Oliker A, Sifakis ED Plastic and reconstructive surgery (2016)
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      Modern Perforator Flap Imaging with High-Resolution Blood Pool MR Angiography.Kagen AC, Hossain R, Dayan E, Maddula S, Samson W, Dayan J et al. Radiographics : a review publication of the Radiological Society of North America, Inc (2015)
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      Free-style puzzle flap: the concept of recycling a perforator flap.Feng KM, Hsieh CH, Jeng SF Plastic and reconstructive surgery (2013)
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      Preoperative imaging for perforator flaps in reconstructive surgery: a systematic review of the evidence for current techniques.Pratt GF, Rozen WM, Chubb D, Ashton MW, Alonso-Burgos A, Whitaker IS Annals of plastic surgery (2012)
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      Images in plastic surgery: digital thermographic photography ("thermal imaging") for preoperative perforator mapping.Chubb D, Rozen WM, Whitaker IS, Ashton MW Annals of plastic surgery (2011)
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      The anatomic basis of perforator flaps.Morris SF, Tang M, Almutari K, Geddes C, Yang D Clinics in plastic surgery (2010)
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      Perforasomes of the DIEP flap: vascular anatomy of the lateral versus medial row perforators and clinical implications.Wong C, Saint-Cyr M, Mojallal A, Schaub T, Bailey SH, Myers S et al. Plastic and reconstructive surgery (2010)
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      Purse-string closure of hemangiomas: early results of a follow-up study.Wu JK, Rohde CH Annals of plastic surgery (2009)
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      Free-style local perforator flaps: concept and classification system.Bravo FG, Schwarze HP Journal of plastic, reconstructive & aesthetic surgery : JPRAS (2009)
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      Magnetic resonance angiography in preoperative planning of deep inferior epigastric artery perforator flaps.Neil-Dwyer JG, Ludman CN, Schaverien M, McCulley SJ, Perks AG Journal of plastic, reconstructive & aesthetic surgery : JPRAS (2009)
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      The art of building a successful facial plastic surgery practice.McCollough EG Facial plastic surgery clinics of North America (2008)
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      Flow-through flaps: a review of current knowledge and a novel classification system.Bullocks J, Naik B, Lee E, Hollier L Microsurgery (2006)
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      Feasibility of robotic-assisted microvascular anastomoses in plastic surgery.Karamanoukian RL, Finley DS, Evans GR, Karamanoukian HL Journal of reconstructive microsurgery (2006)
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      Perforator flaps: evolution, classification, and applications.Geddes CR, Morris SF, Neligan PC Annals of plastic surgery (2003)
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      Skin closure with dye-enhanced laser welding and fibrinogen.Wider TM, Libutti SK, Greenwald DP, Oz MC, Yager JS, Treat MR et al. Plastic and reconstructive surgery (1991)
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      The development of a rat/human skin flap served by a defined and accessible vasculature on a congenitally athymic (nude) rat.Krueger GG, Wojciechowski ZJ, Burton SA, Gilhar A, Huether SE, Leonard LG et al. Fundamental and applied toxicology : official journal of the Society of Toxicology (1985)
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      A simple geometric flap for the closure of skin defects.Skiles MS, Chaglassian T Surgery, gynecology & obstetrics (1979)
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      Patterns of vascular anastomoses vs. success of free groin flap transfers.Goodstein WA, Buncke HJ Plastic and reconstructive surgery (1979)

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