MEDICAL RADIOLOGY Diagnostic Imaging and Radiation Oncology Editorial Board 1. W. Brady, Philadelphia . M. W. Donner, Baltimore H.-P. Heilmann, Hamburg . F. Heuck, Stuttgart Radiation Therapy of Benign Diseases A Clinical Guide Stanley E. Order and Sarah S. Donaldson Foreword by Luther W. Brady and Hans-Peter Heilmann With 103 Tables Springer-Verlag Berlin Heidelberg New York London Paris Tokyo Hong Kong STANLEY E. ORDER, MD, ScD, FACR Director Radiation Oncology The Johns Hopkins Hospital Baltimore, MD 21205, USA SARAH S. DONALDSON, MD, FACR Professor of Radiation Oncology Stanford University School of Medicine Stanford, CA 94305, USA MEDICAL RADIOLOGY· Diagnostic Imaging and Radiation Oncology Continuation of Handbuch der medizinischen Radiologie Encyclopedia of Medical Radiology ISBN- 13: 978-3-642-97162-4 e-ISBN -13: 978-3-642-97160-0 DOl: 10.1007/978-3-642-97160-0 This work is subject to copyright. All rights are reserved, whether the whole or part of the material is concerned, specif ically the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction on microfilms or in other ways, and storage in data banks. Duplication of this publication or parts thereof is only permitted under the provisions of the German Copyright Law of September 9, 1965, in its version of June 24, 1985, and a copyright fee must always be paid. Violations fall under the prosecution act of the German Copyright Law. © Springer-Verlag Berlin Heidelberg 1990 Softcover reprint of the hardcover 1st edition 1990 The use of registered names, trademarks, etc. in this publication does not imply, even in the absence of a specific state ment, that such names are exempt from the relevant protective laws and regulations and therefore free for general use. Product Liability: The publishers can give no guarantee for information about drug dosage and application thereof con tained in this book. In every individual case the respective user must check its accuracy by consulting other pharmaceu tical literature. 2113/3130-543210 - Printed on acid-free paper Foreword The radiation therapist's primary concern is the treatment of patients with malignant dis ease. However, there are definite indications for radiation treatment for benign diseases that do not respond to conventional methods of treatment. It may be the treatment of choice in the unusual instance of a life-threatening benign disease that cannot be surgi cally or medically managed. The present volume by Order and Donaldson represents a major statement on the uti lization of radiation techniques in the management of benign disease. The initial report of the Committee on Radiation Treatment of Benign Disease from the Bureau of Radiological Health recommended that consideration be given to the quality of radiation, the total dose, overall time, underlying organs at risk and shielding factors before the institution of radiation therapy. Infants and children should be treated with ionizing radiation only in very exceptional cases and after careful evaluation of the potential risk compared with the expected benefit. Direct irradiation of the skin areas overlying organs that are particularly prone to late effects such as the thyroid, eye, go nads, bone marrow, and breast should be avoided. Meticulous radiation protection tech niques should be used in all instances and the depth of penetration of the x-ray beam should be chosen in accordance with depth of the pathologic process'. The present volume is based on the American literature and the experience of Ameri can radiologists and represents a significant and important contribution in this critical and significant area of disease processes. The data indicate that radiation therapy con tinues to be an important part in the treatment of a large number of benign conditions where the benefits may greatly outweigh the risks which are frequently minimal. LUTHER W. BRADY HANS-PETER HEILMANN Philadelphia Hamburg Contents Prologue ..... . 1 Acknowledgement . 2 Standard of Care . . 3 Preface, Guidelines 7 Abortion ..... . 9 Acne ....... . 9 Acromegaly with Adenoma . . . 10 Adamantinoma (Ameloblastoma) 10 Aneurysmal Bone Cysts . . . . . . 14 Angiofibroma of the Nasopharynx. 18 Ankylosing Spondylitis . . . . 20 Anovulation .......... . 26 Arteriovenous Malformations. . 26 Arthritis ........ . .. .... 28 Rheumatoid Arthritis . . . . 28 Arthritis Reviews ..... . 29 Astrocytoma (Grade I-II) . 31 Bowen's Disease ........... . 32 Bronchial Adenomas ..... . 35 Bursitis, Synovitis and Tendinitis . . . 43 CarCinoid ............................... . . . . . . . . . .. 52 Complications of Treatment in Pituitary Tumors . . . . . . . . . . 55 Chemodectomas (Non-Chromaffin Paragangliomas) ....... . 55 Chordoma ........................ . 63 Choroid Plexus Papilloma . ..... . 65 Craniopharyngioma . . . . . . . . . . . . 66 Cushing's Disease ............ . 67 Cystic Hygroma, Lymphangioma. 67 Desmoid-Aggressive Fibromatosis . 71 Dupuytren's Contracture ..... . 74 Epithelial Hemangioendothelioma . . . . ...... 76 Erythroplasia of Queyrat . . . . 77 Extramammary Paget's Disease 79 Fibrosclerosis. . . 83 Fungal Infections ....... . 83 Giant Cell Tumor ....... . 84 Gynecomastia (Prostate Cancer Managed with DES) 88 Hemangioma. 89 Herpes Zoster .100 VIII Contents Heterotopic Bone Formation . . . . . . . . . . . . . . . . · 103 Histiocytosis . . . . . . . . . . . . . . . . . . . . . . . . . .104 Hypersalivation in Amyotrophic Lateral Sclerosis .... · 112 Hypersplenism ......... . · 112 Hyperthyroidism . . . . . . . . . . . . . . . . . . . . . . . . .116 Hyperthyroid Ophthalmopathy. . . . . . . . . . . . . . . . .125 Immunosuppression, Lupus Nephritis, Multiple Sclerosis, and Organ Transplantation. ...... .... . .132 Infectious Disorders . . . . . . . . . . . . . . . . . . . . · 139 Inflammatory Conditions . . . . . . . . . . . . . . . . . · 142 Arachnoiditis, Tendinitis, Sinusitis, Thyroiditis . . . . · 142 Inverted Papilloma. .147 Keloid .............................. . · .147 Lethal Midline Granuloma . . . . . . . . . . . . . . . . . . . · . 153 Polymorphic Reticulosis/Lymphomatoid Granulomatosis ... 153 Lymphoid Hyperplasia - Pseudotumor · 156 Me~n~oma . . . . . . . . . . . . . . . . . . . . . . . · 157 Mikulicz Syndrome . . . . . . . . . . . . . . . . . . . · 158 Myasthenia Gravis and Thymus Gland Abnormalities · 161 Neurofibroma .......... . · . 165 Optic Nerve Glioma ....... . · . 165 Osteoblastoma/Osteoid Osteoma ..... . · . 168 Otitis Media . . . . .169 Pancreatic Fistulae . . . . . . . . . . . . . . . · .170 Pancreatitis . . . . . . . . . . . . . . . . . . . . · .170 Paraganglioma (Chromaffin Positive) .... . · . . . . . ......... 170 Parotitis ...................... . · ................... 172 Peptic Ulcer ................... . · . . . . . . . ......... 175 Perifolliculitis Capitis Abscedens et Suffodiens . . . . .. . .. 179 Peyronie's Disease . · 180 Pinealoma ..... . · 185 Pituitary Adenomas . · 186 Plantar Fibromatosis . · 188 Plasmacytoma (Solitary) . · 189 Pterygium ........ . · 195 Pyogenic Granuloma .. .200 Salivary Gland Adenoma .200 Sarcoidosis . . . . . . . .201 Skin Disorders . . . . . .202 Therapeutic Castration .206 Thymus .. . .208 Tinea ... . .208 Tonsillitis . . .210 Tuberculosis · 211 Xanthoma . .212 Subject Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213 Prologue The purpose of this text is to provide a functional begins with a brief resume which is followed by ci workbook for the radiation oncologist who faces on tations of pertinent literature both in explanatory occasion rare, non-malignant disorders. The scarci tables and reference lists. The use of rad and Roent ty of disease incidence is reflected in the paucity of gen is indiscriminately designated in the literature reference for these diseases in the literature. This and the reviewers indicate to readers their need to minimal exchange of information may make re read original scripts if such distinction is necessary. search and analysis difficult, tedious and not easily An index is also provided to facilitate reference directed. Through the cooperation of the American access. The resvlts of the survey, jointly conducted College of Radiology 834 radiation oncologists by The American College of Radiology and the In were canvassed in a national survey regarding treat ter Society Council for Radiation Oncology ment of these benign disorders. Although benign by (lSCRO), are included for each of the disorders as nomenclature, benign disorders may have grave they are reviewed. This book, although utilizing Eu consequences, or even be malignant. Further confu ropean literature where appropriate, represents the sion is created by more than a single nomenclature view of American radiation oncology in regard to the for a given disorder. For example, asked if they management of benign diseases, including the medi would treat polymorphic reticulosis, 86% of the on cal legal aspects of such therapy. cologists surveyed were unwilling to treat the disor Many novel applications of radiation will chal der. When asked, however, if they would treat le lenge our thoughts in the future. Even as this text thal midline granuloma, only 17% of these radia goes to press, consideration of early radiotherapy tion oncologists would not treat the disorder. for treatment of paraquat poisoning, for example, Polymorphic reticulosis and lethal midline granulo has recently been discussed (Br J Radiology 61: ma are the same disorder. In addition to nomencla 405, 1988). These investigators conclude that con ture problems, decision making is rendered even trolled trials following identification of the subsets more complicated for the radiation oncologist by at risk should be conducted to determine the bene the relative rarity of these benign disorders. Unfa fit of adding radiotherapy to treatment protocols. miliarity with sarcoid, for example, leads 92% of ra The conduct and documentation of controlled trials diation oncologists to be unwilling to treat the dis for benign disorders would help greatly in the radi order, while the literature, in fact, indicates that in ation oncologist's decision making. A general con life-threatening situations, treatment may be appro sensus that radiation of tendinitis, bursitis and syn priate and beneficial. ovitis provides benefit, for example, has no substan The text begins with Standard of Care, a discus tiation in the literature and randomized trials now sion of guidelines for the treatment of benign disor indicate no benefit accrues from treatment. We ders, especially when treatment must take into ac must insist upon controlled trials for the radiation count long-term effects and risk-benefit analysis. of benign disorders where questions of efficacy The various benign conditions follow this introduc arise, as we do for more conventional radiation on tory discussion in alphabetical order. Each disease cology. Acknowledgement We wish to acknowledge the leadership provided Marvin Elfin, LLB by the American College of Radiology through the efforts of Mr. John Curry and James Diamond, Marvin Ellin was born in Baltimore, Maryland. He Ph.D., as well as the dedicated assistance of Su attended college at the University of Baltimore and zanne Bohn, who in conjunction with the Inter So graduated from its Law School in 1953. He was ad ciety Council for Radiation Oncology (ISCRO), mitted to the Bar the same year. Mr. Ellin is a spe aided in coordinating and carrying out the exten cialist in medically related trials, and has repre sive mailings, the collection and the preparation of sented surgeons and physicians who themselves data for the National Survey for the Radiation suffered injury through professional negligence. He Therapy of Benign Diseases. Marvin Ellin, an out has written and lectured at law schools, medical as standing malpractice lawyer, presents the Standard sociations and hospitals on professional malprac of Care section in lucid terms that should greatly tice and the prevention of patient injury. He was aid those of us practicing radiation oncology. Two one of the first trial lawyers to utilize experts from residents from Johns Hopkins, Drs. Catherine outside the United States, and has secured expert North and Clinton Leinweber, contributed sections witness participation from specialists in England, on bronchial adenoma and extramedullary hema Italy and Canada. He is admitted to practice before topoiesis, respectively. Thanks to Mrs. Laverne Fair the Supreme Court of the United States, the Fourth and Mrs. Edna Maciejczyk for the continual assis Circuit Court of Appeals, the Federal District tance in the secretarial tasks. Finally, we extend our Court of Maryland, and the Court of Appeals of most sincere appreciation to William L. Clark Maryland. He has previously served as an officer of whose editorial assistance has been invaluable. the Bar Association and has frequently participated as a lecturer in the continuing education series fea tured by the American Bar Association, the City and State Bar. In the chapter that follows, Mr. Ellin shares his opinions regarding the proper applica tion of standards of care in the radiation therapy of benign disorders. Standard of Care Malpractice plaintiff, or that in his treatment of the plaintiff he failed to exercise the care and skill ordinarily pos The appellate courts have defined malpractice as sessed and exercised by others in the profession. the failure of a practitioner to give and to exercise Although the Defendant was alleged to have deviat that degree of care as would be practiced by a rea ed from acceptable standards by excessive radiation sonably competent practitioner under the same or therapy given at too frequent intervals, the qualifi similar circumstances. Simply stated, the appellate cations of the Defendant were not challenged by courts have recognized the existence of standards of the Plaintiff. The Court found that the Defendant care followed by competent specialists in the var did conform to the requisite standards of care in the ious fields. Thus, malpractice is found where a pa administration of radiation treatment. The Court tient's injury or death occurs as a result of a physi further noted that the testimony established that cian's failure to use diagnostic and/or treatment even the exercise of the "highest degree of skill and methods which would be followed by the majority care" may not avoid an adverse reaction by the pa of competent physicians in the same field. tient. Thus, the Hazen case set the principle as early as 1929 that, ultimately, the medical profession es Standard of Care tablishes its own standard of care. The standard is not one able to be determined by a judge or jury, As applied to the specialty of radiation therapy, a since any court and jury would require the medical therapist who renders radiation care must conform expert evaluation of the treatment modality and to the standards which generally prevail in the spe treatment rendered in order to determine standard cialty. Hazen v. Miller F.2d 394 (D.C. Cir., 1929) is of care. The fact that a patient suffers injury raises an early case that demonstrates the medical profes no implication of negligence in most jurisdictions. sion's establishment of standards of care. The ac Moreover, res ipsa loquitur, that is to say, "the inju tion was brought by a patient who maintained that ry speaks for itself," which would establish a sug she suffered severe injury due to radiation overex gestion of negligence, has been rejected, unless un posure. The appellate court reversed the jury's usual circumstances occurred. award to the patient of $15,000 and stated: It is conceded that Dr. Hazen possessed the requisite degree of skill and ability; that x-ray treatment was Negligence by Technical Error the recognized treatment for tubercular glands; it clearly appears that the length of time between expo Through error while applying 800 rad of electron sures of the same area depends upon existing condi beam therapy to a patient, a technician adjusted the tions and the judgment of the operator; that telan machine to 80,000 rad. The patient manifested giectasis may occur even if the highest skill is burns of such intensity that under those circum exercised in the treatment. stances it could not be said that the patient had an Moreover, this decision contained the following adverse reaction or an idiosyncratic response to the statement of law important to the issue of standards treatment rendered. It would follow that, absent the of care: admission that the therapy had exceeded its in As already observed, there is no evidence upon which tended dosage by 100 times, the extent and nature it reasonably may be found that Dr. Hazen did not of the injury in such an extreme case would indi exercise his best judgment and ability in treating the cate negligence. 4 Standard of Care Individual Standards for the Specific Patient for the primary site had been without success, rec ommended a biopsy of one of the lesions, if possi Although the specialist must adhere to the stan ble. The radiotherapist noted that he would pro dards of radiation therapy that prevail across the ceed with radiotherapy of 3600 rad over a period of country, he is not deprived of utilizing his own par two and one-half weeks, if the biopsy were not able ticular technique. Indeed, freedom in the exercise to be performed. Steroids continued to be adminis of treatment may be pursued so long as the special tered to control the worsening symptoms. Some evi ist's approach does not violate the safeguards and dence of improvement was noted. On April 19, a the advances developed in the specialty and utilized neurosurgery consultation was obtained to evaluate by colleagues under the same or similar circum the patient for a brain biopsy prior to radiotherapy. stances. The neurosurgeon recommended that radiation therapy and chemotherapy proceed without a brain biopsy: Negligence in Medical Judgment I do not feel that the risk of biopsy is indicated in this patient in that there is no chance for surgical cure and Carver v. The United States of America, 587 F. bilateral multiple lesions are likely metastasizing, Supp. 794 (N.D., Cal. 1984) provides an example of though primary Res [reticulum cell sarcoma] of the a medical malpractice action brought under the brain is a reasonable differential. Multiple abscesses Federal Tort Claims Act. The action alleged that would likely be very positive on brain scan, as well as physicians at a U.S. Army Medical Center had neg show surrounding inflammatory edema and shift. ligently subjected patient Carver to radiotherapy, Prior to radiotherapy a third CT scan was per thereby causing brain tissue damage. The history of formed on April 24. That scan was interpreted to the case is as follows: show progression of the metastases observed on the On April 1, 1979, the 56 year old patient was ad prior scan. Radiotherapy was begun the same day. mitted to Letterman Army Medical Center with By April 26 the patient had improved. Radiation complaints of staggering gait, clumsiness, left was completed on May 9 and another CT scan that handed weakness, slurred speech and personality date showed improvement. The patient was dis change. After one inconclusive CT scan, the patient charged on May 12, 1979. was sent to the University of California Medical Following his discharge the patient lived at Center for a second CT scan performed by a promi home. He gradually grew weaker. In late 1979 and nent neuroradiologist. The CT scan was reported to early 1980 he was again admitted to Letterman Ar indicate that the most likely diagnosis was multiple my Medical Center. In 1980 he was diagnosed as metastatic neoplasm. possibly having multiple sclerosis. His physical and Subsequently, an extensive work-up that in mental condition continued to deteriorate and he cluded liver and spleen scan, lung tomograms, an was eventually placed in a convalescent home. IVP, sigmoidoscopy, bronchoscopy and a bone The United States District Court of Appeals for scan, failed to reveal the primary site of the cancer. the Northern District of California held that the Consultations were also obtained with cardiology, Plaintiff failed to sustain the burden of proof by a hematology-oncology, nuclear medicine, radiother preponderance of the evidence that the physicians apy, neurosurgery, pathology, proctology, as well as failed to conform to the standard of care in pre the diabetic and immunization clinics. During this scribing and administering radiotherapy. As this period of search for the primary site, April 3 was a Federal Tort Claims case, the physicians indi through April 23, the patient's condition steadily vidually were not Defendants in the suit. The Plain declined. He had attacks of nausea and dizziness tiff in Federal Tort Claims cases is limited to a court that were accompanied by ECG changes. He devel trial by judge without a jury. oped diplopia which continued for three days and The Appeals Court held that the physicians exer necessitated the use of Decadron. On April 11, the cised judgment involving a serious disease process. patient developed hiccups and the dose of Deca Further, when weighing the possible benefits dron was increased. The patient eventually received against the possible risks, the suit amounted to Thorazine in an attempt to control his hiccups. nothing more than an ex post facto attack on the ex From April 16 to 18, the patient continued to de ercise of medical judgment. The case was dismis cline. He was considered for palliative radiother sed. apy; a radiotherapy consultation was requested. The radiotherapist, noting that the extensive search