A Case of Mucosa-associated Lymphoid Tissue Lymphoma Discovered by Repetitive Intraocular Lens Dislocation

PURPOSE: To report a case where bilateral malignant retrobulbar lymphoma was diagnosed after repetitive intraocular lens dislocation to the anterior chamber. CASE SUMMARY: An 85-year-old male with a history of stroke who had undergone cataract surgery 10 years ago at another hospital presented with repeated intraocular lens (IOL) dislocations of both eyes into the anterior chamber. He had previously undergone IOL scleral fixation once in his left eye and twice in his right eye, but IOL dislocation was still repeatedly occurring. The best-corrected visual acuity was 0.4 in both eyes. Hertel exophthalmetry was 20 mm in his right eye and 18 mm in his left eye. Painless limitation of motion at supraduction was observed in the right eye. Funduscopy showed newly appeared choroidal folding in the right eye, so orbital computed tomography (CT) with contrast was performed. The CT scans showed bilateral homogenously enhancing retrobulbar masses. Biopsy of the masses showed a MALToma. After radiation therapy, the choroidal folds resolved and exophthalmetry improved to 10 mm in both eyes. No additional IOL dislocation occurred. During 2.5 years of follow-up, there was no evidence of recurrence or distant metastasis of the MALToma. CONCLUSIONS: Orbital lymphomas can cause lid edema, exophthalmos, strabismus, and diplopia, and can be diagnosed with imaging modalities such as CT. Final diagnosis involves biopsy and radiation therapy or chemotherapy. If IOL dislocation occurs repeatedly, it may result from an increase in retrobulbar pressure, and concurrent choroidal folding using funduscopy is strongly recommended for imaging to check for the presence of retrobulbar masses.

Primary gastrointestinal lymphomas - A study of 81 Cases from a Tertiary Healthcare Centre.

Purpose: Retrospective analysis of 81 routinely diagnosed gastrointestinal (GI) lymphoma to illustrate clinicopathological and immunohistochemical characteristics with predisposing condition. Materials and Methods: Age, sex, site, tumour stage, associated pathological features like lympho-epithelial lesion (LEL), atrophic gastritis (AG), intestinal metaplasia (IM) and enteropathy changes were analysed. Requisite immunohistochemical panel was applied wherever needed. Results: There were 55 male and 26 female patients with median age of 54.5 years. Site wise distributions were stomach 40, small intestine 22, colon 4, cecum 2, ileocecum 3, esophagus 1 and multiple sites 9. Histological subtypes were mucosa associated lymphoid tissue lymphoma (MALTOMA) 48, diffuse large B cell lymphoma (DLBL) 21, T cell lymphoma 9 [5 anaplastic large cell lymphoma (ALCL) and 4 enteropathy associated T cell lymphoma (EATL)], immunoproliferative small intestinal disease (IPSID) 2 and follicular lymphoma 1. LEL was present in 31 cases. Of the 19 AG, 8 had associated IM, and 1 case each had associated H Pylori infection and neuroendocrine tumor. Enteropathy was observed in 4 EATL, and one case each of DLBL and high grade MALTOMA. Giardia infection was present in 1 low grade duodenal MALTOMA. Of the 24 resected specimens, 16 were stage IE, 7 stage IIE and 1 stage IV (Mushoff's staging). Conclusion: Primary GI lymphoma was frequently observed in 6 th decade of life with male preponderance. Stomach was the commonest site and high grade MALTOMA being the commonest histological variant. Isolated colonic involvement and intestinal perforations were not infrequent. Rare variants like ALCL and follicular lymphomas were also observed.

A Case of MALT Lymphoma with Left Inferior Rectus Muscle Invasion

PURPOSE: To report an unusual case of mucosa-associated lymphoid tissue (MALT) lymphoma localized to the left inferior rectus muscle. CASE SUMMARY: A 52-year-old male presented with double vision 6 months in duration, which was exacerbated in the down-gaze. On initial examination, 6 and 30 prism diopters (PDs) of left hypertropia were observed in primary gaze and down gaze, respectively. Prominently limited infraduction was also observed in his left eye. Computed tomography (CT) revealed contrast enhancing mass on the left inferior rectus muscle. He was diagnosed with suspicious orbital pseudotumor and treated with systemic steroid for 2 months. Double vision and limited infraduction was improved and the mass size was decreased on CT. After 21 months, the patient revisited the clinic with the same symptoms. In the down-gaze, 35 PDs of hypertropia were observed in his left eye along with limited infraduction. CT revealed an enlarged mass and left superior rectus muscle recession along with an incisional biopsy of the left inferior rectus muscle were performed. Infiltration by small lymphoid cells was detected with hematoxylin-eosin and immunohistochemical stainings. Subsequently, the patient was diagnosed with MALT lymphoma localized to the left inferior rectus muscle. CONCLUSIONS: This is the first description of MALT lymphoma with inferior rectus muscle invasion in a Korean patient. In a patient with strabismus and limited duction, the possibility of extraocular muscle tumor including lymphoma should be considered. Homogenously contrast-enhanced mass on orbit CT can help in to make a diagnosing extraocular muscle lymphoma.

Nodular lymphoid hyperplasia of the stomach in a patient with multiple submucosal tumors

Nodular lymphoid hyperplasia of the stomach is a rare lymphoproliferative disorder. Here, we report a 38-year-old man who presented with multiple submucosal tumors of the stomach. Histologically, the lesions were characterized by multiple discrete submucosal nodules of lymphoid cells. The infiltrates between the lymphoid follicles were composed mainly of medium-sized lymphoid cells with abundant clear cytoplasm, as well as a few large cells with vesicular nuclei. The gastric mucosa exhibited multifocal lymphoid aggregates and some of the epithelial cells were infiltrated by small lymphocytes mimicking lymphoepithelial lesions. Histopathology was consistent with mucosa-associated lymphoid tissue lymphoma. However, the infiltrating lymphoid cells were positive for CD2, CD3, CD5, and CD7. In addition, polymerase chain reaction analysis of the immunoglobulin heavy chain and T-cell receptor gene rearrangements demonstrated polyclonality. This case was diagnosed as reactive lymphoid hyperplasia of the stomach.

The Role of Radiotherapy for the Treatment of Gastric MALT Lymphoma / 대한내과학회지

Gastric mucosa-associated lymphoid tissue (MALT) lymphoma represents approximately 9% of all malignant lymphoma in Korean, and its incidence is higher than that of western and other Asian countries. Helicobacter pylori eradication is the first line treatment in limited stage gastric MALT lymphoma. There is no consensus about initial treatment with chemotherapy or radiotherapy for the patient with insufficient response to H. pylori eradication or H. pylori negative. Radiotherapy is a conventional therapeutic modality and showed the excellent long term results. The radiotherapy for limited gastric MALT lymphoma shows that the 4-5-year disease free survival rate is 85-100% and acute toxicities is reasonable. However, only non-randomized studies support a role of local radiotherapy in gastric MALT lymphoma.

Conjunctival MALToma Patient with Intraocular Manifestation: A Case Report

PURPOSE: To report one case of unilateral intraocular involvement of the MALToma (Mucosa Associated Lymphoid Tissue Lymphoma) in the patient with bilateral conjunctival MALToma which was cured by radiation therapy 8 years ago. METHODS: A 64 year old woman who was in remission status after radiation therapy of the bilateral conjunctival MALToma presented with vitreous opacity, inflammatory reaction in anterior chamber, iris posterior synechiae and keratic precipitate in her left eye. Visual acuity of her left eye decreased from 20/33 to 20/100. Pars planar vitrectomy and cytologic analysis of the vitreous sample were performed. RESULTS: Cytologic analysis of the vitreous sample showed atypical lymphoid cells containing vacuolar nuclei which were stained positive at CD20 marker in the immunohistochemistry. So radiation therapy of the left eye was performed in the diagnosis of intraocular involvement of the MALToma. CONCLUSIONS: If severe panuveitis occurs in the patient with radiation therapy of the conjunctival MALToma, intraocular involvement of the MALToma should be considered as one of the differential diagnosis.

A Case of MALToma Found in Bilateral Lacrimal Gland and Hard Palate

PURPOSE: Lymphoma originated from MALT is common in stomach but infrequently found in bronchus, salivary gland, thyroid gland and orbit. We report a case of multifocal MALToma in bilateral main lacriamal gland, hard palate without systemic metastasis. METHODS: A 45-year-old male without known systemic disease visited with movable mass in left upper eyelid for 5 months. RESULTS: We found the mass which was hot uptaked by whole body SPECT in left main lacrimal gland and hard palate. By excisional biopsy, the mass was diagnosed as MALToma. After 1 year it recurred in contralateral main lacrimal gland. It was diagnosed as the same MALToma by excisional biopsy. Relapse and other metastasis have not been observed yet up to now(November, 2002) , since we treated radiation therapy.

Histological Progress Observation of Conjunctival MALToma

PURPOSE: We report six cases of histologically diagnosed conjunctival MALT (mucosa-associated lymphoid tissue)oma. Presenting symptoms were eyelid swelling, foreign body sensation, lid mass, injection and itching sensation. PATIENTS AND METHODS: Six patients with conjunctival MALToma were followed. Clinical progress and biopsy result were reviewed periodically. RESULTS: The conjunctival MALToma seemed to be localized and slowly progressive. Although the conjunctival MALToma is known to be well responsive to radiotherapy, two of three patients who received radiotherapy revealed to have remnant lymphoma cells histologically in conjunctival biopsy. In addition, chemotherapy did not have curative effect in any of the patients. CONCLUSIONS: Therefore, we are doubtful for the necessity of active treatment in MALTomas of the conjunctiva.

A Case of Bilateral Conjunctival Malignant Lymphoma Misdiagnosed as Allergic Conjunctivitis

Lymphoma originating in mucosal-associated lymphoid tissue (MALToma) is characterized by small B-cell lymphocytes of low-grade malignancy. They have salmon-colored multiple conjunctival masses and the bilateral occurrences are relatively rare. We evaluated a 32 year-old man with bilateral conjunctival mass lesions who was referred to our department with the diagnosis of allergic conjuctivitis. Histologic and immunocytochemical examination of the conjunctival biopsy revealed mucosal associated lymphoid tissue lymphoma. The patients was successfully treated with low-dose local radiotherapy.