Pathology forum: quiz case 1. Diagnosis: posttransplant lymphoproliferative disease (PTLD) of the epiglottis

Post-transplant lymphoproliferative disease of the larynx

Laryngeal post-transplant lymphoproliferative disease (PTLD) is rare. Here, we describe two pediatric cases. The first, a 15-month-old who underwent liver transplantation at 5 weeks, presented with airway distress. Airway evaluation identified epiglottic and arytenoid infiltrate, and biopsy was consistent with polymorphic PTLD. The second, a 23-month-old who underwent liver transplantation at 13 months, presented with progressive stridor. Airway evaluation revealed sub-mucosal infiltrate of the epiglottis, arytenoids, post-cricoid region, and uvula. Biopsy was consistent with monomorphic PTLD. Airway findings and symptoms resolved for both after immunosuppression reduction. PTLD diagnosis requires a high index of suspicion in post-transplant patients with airway obstruction.

Airway plaque presenting after alteration of immunosuppression in a pediatric patient remote from heart transplantation

Success after solid organ transplantation is dependent on the proper balance of immunosuppression to prevent rejection of the allograft while limiting the risk of developing infections and malignancy. We present a 9-year-old girl, remote from transplant, who presented with airway plaque after a change in immunosuppression to include the mTOR inhibitor sirolimus. Differential diagnosis included direct medication side effect, infection, and neoplasia.

Posttransplant Lymphoproliferative Disorder: Otolaryngological Manifestations and Management

Objective

Posttransplant lymphoproliferative disorder (PTLD) is a unifying term for a spectrum of lymphoid expansion entities brought about by immunosuppression and is strongly associated with Epstein-Barr virus (EBV). Otolaryngological findings tend to present early in the clinical course; therefore, disease awareness among otolaryngologists is of utmost importance. This review synthesizes the body of literature pertaining to PTLD involving the head and neck, summarizes contemporary management, and highlights areas for future research.

Data Sources

PubMed/Medline.

Review Methods

Primary literature search of the Medline database was performed for all titles published in the past 10 years pertaining to PTLD. The database search included PTLD combined with a collection of otolaryngological MeSH terms. Full manuscripts were reviewed based on relevance of their title and abstract. Selection into this review was according to clinical and scientific relevance.

Conclusion

Adenotonsillar focus is common in children in whom adenotonsillectomy may be diagnostic and prevents potentially morbid airway obstruction. Sinonasal PTLD may mimic fungal infection. Laryngotracheal involvement predominately presents in children with symptoms of airway obstruction. PTLD limited to the esophagus is rare. Oral PTLD is rare and phenotypically varied. Cutaneous presentation of PTLD is infrequent, yet one-third of cases affects the head and neck. PTLD may present as cervical lymphadenopathy.

Implications for Practice

PTLD consideration is vital when evaluating posttransplant patients. Children and EBV-seronegative patients should receive otolaryngological follow-up after transplant. PTLD treatment is multidisciplinary and typically led by lymphoma specialists. Formal partnerships between otolaryngologists and transplant centers may improve patient care and research quality.

Post-transplant lymphoproliferative disorder of the pediatric airway: Presentation and management

OBJECTIVE

Post-transplant lymphoproliferative disorder (PTLD) is a rare complication of immunosuppression with little consensus on its evaluation and management. The purpose of this contemporary review is to describe a pediatric patient with PTLD of the airway and review the literature to provide multidisciplinary recommendations regarding management.

DATA SOURCES

Retrospective chart and literature review.

REVIEW METHODS

A pediatric patient with PTLD of the airway is described. An extensive literature search to review the existing data on pediatric PTLD of the upper airway was also performed.

RESULTS

A pediatric patient with mixed fetal/embryonal hepatoblastoma developed laryngo-tracheal PTLD following liver transplantation. Diagnostic positron emission tomography (PET) scan demonstrated multiple sites of abnormal fluorodeoxyglucose (FDG) uptake within the larynx, distal esophagus, cervical lymph nodes, and abdomen concerning for PTLD. Laryngeal biopsy demonstrated Epstein-Barr virus (EBV) positive cells confirming the diagnosis. Rituximab therapy and reduction of immunosuppression resulted in resolution of his laryngeal disease in 3 months. An extensive literature search to review the existing data on pediatric PTLD of the larynx and trachea revealed 14 reported cases.

CONCLUSIONS

PTLD of the pediatric airway is an EBV-associated disease that requires a high index of suspicion as patients can often present with non-specific signs and symptoms but progress to have significant airway compromise. Evaluation consists of peripheral blood polymerase chain reaction (PCR) assays, biopsy, and PET/CT imaging. Management options include reduction of immunosuppression and/or systemic therapies.

Posttransplant Lymphoproliferative Disorder involving the Larynx

Aim:

Our goal is to present an unusual case of posttransplant lymphoproliferative disorder (PTLD) involving the larynx. We aim to expand the literature regarding head and neck manifestations involving PTLD and for otolaryngologists to include PTLD in their differential diagnosis of laryngeal lesions in patients who have a history of solid organ transplantation.

Background

Posttransplant lymphoproliferative disorder occurs in immunocompromised patients following solid organ transplantation. Head and neck manifestations most commonly involve Waldeyer's ring with the larynx and trachea being relatively uncommon sites of disease. However, lesions of the larynx can cause acute airway obstruction and rare fatalities have been reported in the literature.

Case report

We present the case of a 51-year-old female with a history of renal transplantation, who presented to the office after an incidental supraglottic lesion was discovered during intubation for cochlear implant placement. A mucosalized lesion arising from the right aryepiglottic fold with dynamic obstruction of the airway was noted on office endoscopic examination. Imaging revealed extension of the mass into the right posterolateral hypopharynx. The patient was taken to the operating room for microdirect laryngoscopy and CO2 laser excision of the mass. The lesion was excised with negative gross margins. Final pathology revealed plasmacytoma-like PTLD and the patient was referred back to her transplant team for modulation of her immunosuppressive therapy.

Conclusion

We present the case of an incidental supraglottic lesion in a posttransplant patient. Special emphasis should be given to the tissues of Waldeyer's ring and larynx.

Clinical significance

Posttransplant lymphoproliferative disorder, while rare, should be kept in the differential diagnosis of pharyngeal and airway lesions in patients with a history of solid organ transplantation. Expansile lesions can cause acute airway obstruction. Urgent evaluation and treatment of theses lesions is necessary in these circumstances.

How to cite this article

Kohli N, Wasserman JM. Posttransplant Lymphoproliferative Disorder involving the Larynx. Int J Head Neck Surg 2016;7(1):53-56.

Diagnosis and management of supraglottitis (epiglottitis)

Acute supraglottitis is a serious, potentially fatal infection in both adults and children. Haemophilus influenzae type b (Hib) is the most common cause in children, even in this era of the Hib vaccine. Most cases of acute supraglottitis in adults are thought to be caused by other bacterial organisms, viral or combined viral-bacterial infections, and noninfectious etiologies. Early visualization of the larynx is essential, as is establishment of a secure airway in selected cases. Most cases will respond to intravenous antibiotic therapy and will not require an artificial airway. Admission to an area of high-intensity nursing is essential. Daily laryngoscopy is necessary to monitor response to treatment. Although the incidence of acute supraglottitis in children has decreased, isolated cases will be encountered and demand high vigilance.

Epiglottitis in the Hemophilus influenzae Type B Vaccine Era: Changing Trends

OBJECTIVE

To describe the epidemiology, natural history, and treatment of epiglottitis in the Hemophilus influenzae type B (Hib) vaccine era.

DESIGN

Ten-year retrospective study.

SETTING

Tertiary-care children's hospital.

PATIENTS

Nineteen patients with a discharge diagnosis of epiglottitis.

INTERVENTION

As indicated by the presentation of the patient, including direct laryngoscopy, intubation, intravenous antibiotics, and steroids.

MAIN OUTCOME MEASURES

Presentation, management, and microbiology.

RESULTS

Presenting symptoms included fever, drooling, and hot potato voice. Patients' ages ranged from 15.8 months to 17.5 (mean 8.9) years. From 1992 to 1997, the mean age was 5.8 years; from 1998 to 2002, the mean age was 11.6 years. Sixty-eight percent of patients were transferred from an outside hospital. A lateral neck radiograph was recorded in 84% of patients. Mean leukocyte count was 16600. Direct laryngoscopy with intubation was performed in 79%; intubation was for an average of 3.5 days. H. influenzae was cultured in six patients, five of which had up-to-date immunizations. The most commonly administered antibiotics were ampicillin/sulbactam and ceftriaxone. Steroids were administered to 63% of patients. Complications included deep neck space infection (2), seizure (1), recurrent illness (1), and vocal granuloma (1). There were no deaths.

CONCLUSION

The demographics, causative organisms, and natural history of epiglottitis have changed substantially in the Hib vaccination era. The clinician evaluating and treating patients with epiglottitis should be aware of current trends.