Systemic anaplastic large cell lymphoma presenting as a huge mediastinal mass in a case of hyper IgE syndrome: a case report

Abstract

Background

Hyper IgE syndrome is a rare heterogeneous immunodeficiency syndrome which is characterized by recurrent episodes of cutaneous and respiratory tract infections and development of cold abscesses. This syndrome is also associated with malignancies, most notability hematologic malignancies.

Case presentation

In this case report, we discuss a 27-year-old male with proven hyper IgE syndrome and effected by tuberculosis, who developed an anaplastic large cell lymphoma, a very rare and aggressive subtype of lymphoma. We will discuss imaging findings in this rare case. The case presented here had a large mediastinal mass, which had encircled the aorta, and was accompanied by subcarinal lymphadenopathy and inguinal lymphadenopathy.

Conclusions

Systemic anaplastic large cell lymphoma is a rare subtype of lymphoma which is rarely associated with hyper IgE syndrome. In this case, both lymphoma and tuberculosis infection were witnessed in the same patient, showing a classic example of immune dysregulation.

Background

Hyper immunoglobulinemia E (IgE) syndrome is a heterogeneous group of disorders characterized by immune dysregulation. Davis et al. [1] reported the first case of hyper IgE syndrome in 1966, in two girls with chronic dermatitis and cold abscesses, and named the condition “Job’s syndrome.” Later, it was discovered that indeed Job’s syndrome was a subtype of hyper IgE syndrome, with an autosomal dominant form of transmission. To some extent, all forms of hyper IgE syndrome present with findings such as chronic dermatitis, recurrent cutaneous infections, chronic sinusitis, pneumatoceles, atopy, and increased rate of certain malignancies, most notably lymphomas. Immunologically, this condition is accompanied by reduced IL-22, IL-21, IL-11, IL-10, and IL-17 signaling; reduced chemotaxis of neutrophils; and abnormal differentiation of B lymphocytes [2]. Because of the latter, patients suffering from hyper IgE syndrome are prone to aggressive lymphomas. In this case report, we present a patient with documented hyper IgE syndrome who suffered from recurrent infections in the respiratory tract and the skin, and had been diagnosed and was being treated for tuberculosis. This patient developed an anaplastic lymphoma during follow-up, which presented as a huge mediastinal mass.

Case presentation

A 27-year-old male presented with a chief complaint of cough exacerbation within the previous month.

He was a known case of hyper IgE Syndrome for 17 years with a history of recurrent pneumonia, chronic sinusitis, skin rashes, nail infections, coarse texture of the skin, and delayed dental shedding.

He had a family history of a similar condition in his elder brother and sister, causing an early death in both siblings because of sepsis. The medical records of both siblings were unfortunately not available, but genetic analysis of the patient had revealed a mutation in the STAT3 gene.

From childhood, as the disease had begun, the patient experienced recurrent episodes of respiratory tract infections and rashes on the skin. The lesions were superinfected, and the patient was on medication with anti-staphylococcus agents, which had resulted in moderation of the skin lesions.

He had lost light perception in his right eye when he was 12 years old due to cutaneous lesions and their superimposed infections.

A year ago, he was admitted to a pulmonary subspecialty ward because of pneumonia (with fever and chills, productive coughs, and yellow-brown sputum), was diagnosed with tuberculosis during clinical examination, and received the classic TB treatment, comprising of rifampin, isoniazid, ethambutol, and pyrazinamide (10–15 mg/kg of each medication).

Two months after starting the anti-TB medications, due to high liver functional enzymes (SGOT = 89 to > 77 to > 135, SGPT = 99 to > 101 to > 77) and a high ALK.P (4847 to > 4175 to > 991) in a number of lab tests, all TB medications were halted and the patient underwent further evaluation.

He underwent abdominal and pelvic CT scan which showed an enlarged liver (liver span in longest dimension equaled 20 cm) with 2 hypodense masses with a maximum diameter of 17 mm. Numerous large hypodense masses in both inguinal regions suggestive of lymphadenopathy and a mass-like lesion with a diameter of 41 × 77 mm in LLQ were found. The patient chose not to continue further evaluations and left the hospital on personal demand.

Twenty days prior to the last admission, the patient was admitted to the hospital because of cough exacerbation, fever, and chills. Reduced lung sounds and fine crackles were auscultated in both lung bases, and the liver was 5 cm below the rib cage.

He received antibiotics and supportive treatment for pulmonary infection and underwent chest radiography, which showed a huge mass in the left thoracic cavity, just above the heart. Because of this, the patient had a CT scan with intravenous contrast, which showed an infiltrative large mass of 60 × 78 mm in the left para-mediastinum with aortic encasement and subcarinal lymphadenopathy. Numerous nodules with a maximum diameter of about 17 mm were also seen in both lungs. A mosaic pattern with ground glass opacification and an increase in intralobular septum thickness were observed. A consultation with a clinical oncologist suggested biopsy of the lesions. Imaging findings of the patient are presented in Figs. 1, 2, 3, 4, 5, and 6.

Fig. 1

Two chest X-rays of the patient taken 1 year apart. a The chest X-ray taken when the patient was diagnosed with tuberculosis. b The chest X-ray taken when the patient had exacerbated symptoms after 1 year. A giant mass is seen in the mediastinum, which was not present before. The asterisk marks the described lesion

Fig. 2

CT scan of the lungs and mediastinum with and without contrast. a An enlarged mass exists in the mediastinum. b Venous phase of CT with contrast shows that the aortic arch is encased by a mass which is not enhanced

Fig. 3

Subcarinal lymphadenopathy detected by CT with venous contrast. The lymphadenopathy is shown by the asterisk

Fig. 4

Triple-contrast CT scan of the abdomen. Low attenuated lesions are seen in the liver (arrows)

Fig. 5

Bilateral inguinal lymphadenopathy showed by the arrows

Fig. 6

Coronal and axial cuts of the sinuses. Ostiomeatal complex pattern is seen, as both the ethmoidal, maxillary, and frontal sinuses are involved

Bronchial biopsy and washing were not diagnostic; therefore, open lung biopsy was performed after consultation with the thoracic surgery specialists and immunohistochemical analysis of the specimen showed strong immune reactivity of all large neoplastic cells for CD30 and their negative reaction for CD3, CD15, CD20, CD45, CK, S100, and vimentin. Numerous reactive CD20+ CD45+ B cells and many reactive CD3+ CD45+ T cells were also seen, which overall were in favor of anaplastic large cell lymphoma. Further examination revealed a positive Ki-1 marker. Further consultation with the oncology department resulted in the patient being treated with the CHOP regimen (cyclophosphamide, doxorubicin, vincristine, and prednisone). The patient was under treatment with this regimen for 2 months and was being considered to undergo treatment with brentuximab vedotin, until an episode of neutropenic fever caused the patient to be hospitalized in the ICU ward. The patient deteriorated swiftly and died within the first week of ICU hospitalization.

Discussion

In this article, we report a case of hyper IgE syndrome with typical dermatologic manifestations which was complicated by both a tuberculosis infection and an anaplastic large cell lymphoma. The first paramedical findings leading us to the diagnosis of lymphoma were a large mass in both chest X-rays and lung CT scans, which had encircled the aorta. Immunohistochemically, staining was done on a biopsy specimen of the lung, which yielded the definite diagnosis. Hyper IgE syndrome is associated with a dysfunctional immune response, which can present both as susceptibility to infectious agents and autoimmune diseases. Importantly, clinicians have observed that hyper IgE syndrome is associated with Hodgkin’s and non-Hodgkin’s lymphoma, especially the autosomal dominant subtype, which is associated with STAT3 deficiency [3]. Interestingly, both pro-inflammatory and anti-inflammatory responses are mediated through STAT3 signaling. Tangible evidence of this role is seen in hyper IgE syndrome, where both anti- and pro-inflammatory responses are dysfunctional [4].

Another form of hyper IgE syndrome is the autosomal recessive subtype, which is caused by a deficiency in dedicator of cytokinesis 8 (DOCK8), a molecule involved in the regulation of actin, and possibly a tumor suppressor. Clinically, this subtype is not associated with connective tissue diseases, while it is mostly associated with neurologic symptoms, mucocutaneous viral infections and asthma, and food allergies, unlike the autosomal dominant type [5, 6].

Although these two subtypes have different clinical manifestations and pathophysiological processes, they are both associated with malignancies, including lymphomas. A number of case reports have shed light on patients with hyper IgE syndrome who have been diagnosed with lymphomas. These reports have found that most patients have suffered of either diffuse large B cell lymphomas, T cell lymphomas, Burkitt lymphomas, Mantle cell lymphoma, Hodgkin’s lymphoma, or rare cases of extranodal NK/T lymphomas [7]. In this case report, we present a patient with a history of hyper IgE syndrome who was diagnosed with anaplastic large cell lymphoma, a very rare finding, of which only one has been reported so far [8], and in a rather young age (27 years old). This subtype of lymphoma is characterized by the presence of CD30 and Ki-1 tumor markers and is associated with cutaneous involvement, involvement of the skeletal system, spleen, liver, and soft tissues. The pathophysiology of this rare subtype of lymphoma is associated with the activation of anaplastic lymphoma kinase, a receptor tyrosine kinase in the insulin receptor superfamily [9]. Of interest, in vivo studies have suggested that there may be a link between anaplastic lymphoma kinase activation and STAT3, and the combined function of these two molecules may protect hematopoietic cells from apoptosis [10].

This patient also used to suffer from tuberculosis, again a rather rare finding, as most patients with hyper IgE syndrome are complicated by gram-positive bacteria. Furthermore, our case was novel in regard to imaging findings, as no other case had presented with a large mass in the mediastinum.

A general overview of previous case reports published in this regard reveals that CT scan has been the most utilized imaging method of lymphomas, and findings have included involvement of the parotid glands, spleen, and abdominal, mediastinal, and inguinal lymph nodes. Various studies have reported sizes up to 5 cm for individual masses, but larger ones are exceedingly rare. Positron emission tomography (PET) scan is also used in the detection of lymphoma in hyper IgE patients. This modality could be of interest in patients who cannot routinely undergo imaging with contrast media used in CT and MRI or those who have lesions which are not suitable for obtaining a biopsy [11].

Conclusion

We present a rare case of anaplastic large cell lymphoma in a young male patient who had previous infection with tuberculosis. Imaging in this patient unraveled a large mass in the mediastinum, which had encased the aorta. Further imaging showed numerous lymphadenopathies in the subcarinal and inguinal region. Open lung biopsy was done to attain a specimen for further analysis. IHC showed positive staining for CD30, and the diagnosis was made. This case report illustrates the duality of immune system dysfunction in individuals affected by hyper IgE syndrome. It is important for clinicians to address this duality in clinical practice and anticipate conditions resulting from defective immune system and also uncontrollable activation of the immune system.