Congenital colloid cyst with astigmatism in adult male patient: a rare case report.

Introduction and importance: Colloid cysts are rare brain tumors that can cause headaches, memory problems, and vision issues. Early diagnosis and treatment are crucial to prevent complications. Case presentation: The authors report a case of a patient in their 20s with a 2-year history of headaches and blurry vision. A computed tomography (CT) scan revealed a colloid cyst in the third ventricle. The patient was diagnosed with astigmatism and managed with corrective lenses and regular CT scans. Clinical discussion: The patient's astigmatism may be linked to the colloid cyst, potentially due to migraines triggered by the cyst's location. Further research is needed to understand this relationship. Conclusion: This case highlights the potential for colloid cysts to contribute to vision problems. Careful evaluation and individualized management are essential for patients with colloid cysts and vision disturbances.

Secondary neoplasm to non-hodgkin lymphoma treatment manifesting as a cancer of unknown primary: the first case in literature.

Introduction: Cancer of unknown primary (CUP) is a tumour metastasis with no detectable primary origin. A secondary neoplasm (SN) is defined as a tumour secondary to a prior tumour treatment and has no histological relation to that primary tumour. Case presentation: The authors report a case of a 72-year-old female patient who presented with back pain and had a history of non-Hodgkin lymphoma (NHL) treated with RCHOP 12 years ago. MRI showed a compression fracture in T5 and T7 vertebrae, while the PET/computed tomography (CT) only showed hypermetabolic lytic bone lesions in these vertebrae. Pathological examination of a biopsy of these lesions suggested metastatic breast cancer, but the mammography was normal. The above clinical description indicates that our case is a SN to RCHOP treatment manifested as a cancer of unknown origin. Discussion: CUP is diagnosed when all screening procedures fail to find the original tumour. On the other hand, the literature showed that RCHOP treatment of non-Hodgkin lymphoma has a 0.68% chance of causing a SN. After an extensive literature search, we found that our case, which has the combination of both CUP and SN, is the first documented case. Conclusion: This case suggests that cancer patients who received chemical or radiological treatment should be screened more carefully on the long term as it is possible to developed secondary neoplasms without a primary tumour in areas difficult to diagnose with traditional screening tools.

A rare case report of giant de novo cervical cystic hygroma in an elderly patient: Case report.

INTRODUCTION AND IMPORTANCE: Cystic hygroma is an aberrant proliferation of lymphatic vessels resulting from abnormal development of the lymphatic system.Cervical lymphangioma is an uncommon entity, usually reported in children, rarely in adult. CASE PRESENTATION: Our case presents a 65-year-old man with an extremely huge right-sided painless cervical swelling since 8 years with no symptoms. CLINICAL DISCUSSION: Computer tomography (CT) showed a cystic lesion with thin walls of 150 × 100mm, medial to right sternocleidomastoid muscle (SCM).The lesion was completely resected along with the entire capsule.Post-operatively, the patient recovered well with no signs of any neurological dysfunction and he was discharged from hospital after 2 days. CONCLUSION: The etiology in the adult population is controversial.Diagnosis in adults is considered to present a greater challenge than in children, and final diagnosis is usually based on postoperative histology.Cystic hygroma should be considered as a differential diagnosis of cervical masses in adults.