Highlights The term “sebaceous cyst” has fallen into disuse, the current term is an epidermoid cyst. Other common synonyms include infundibular cyst, epidermal cyst, epidermal inclusion cyst, and epidermoid inclusion cyst. These cysts are slow-growing masses that elevate the skin and often have a central punctum. On radiology, they have round to oval structure, well-circumscribed, avascular mass; restricted diffusion is typical. Removal may be accomplished by simple excision or incision.

The carotid body is the largest collection of paraganglia in the head and neck and is found on the medial aspect of the carotid bifurcation bilaterally. Carotid body tumors are rare neoplasms arising from the chemoreceptor cells of the carotid bulb. We report a case of carotid body tumor in a 42-year-old female, who presented with painless, pulsatile, gradually progressive lateral neck swelling. The diagnosis is suspected on the basis of history, clinical and radiological examination findings and a successful surgical excision of the tumor is performed. Histopathological examination confirms the diagnosis of carotid body tumor. We also present brief literature about carotid body tumors in terms of its clinical and imaging presentation, evaluation, and management.

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Mature cystic teratoma is one of the most common tumors of the ovaries, testis, mediastinum, and retroperitoneum; however, secondary retroperitoneum lesions are rare entities in adults. We report a case of a 22-year-old female who was previously diagnosed with a mature teratoma of left ovarian was hospitalized due to dull abdominal pain in right hypochondria. Radiological evaluation revealed a mass in the right upper abdominal and flank region with an extension from the posterior aspect of the duodenum, composed of greasy and cystic elements. A tumor was resected through the Kocher's laparotomy and the pathology report confirmed the diagnosis of a mature cystic teratoma with no evidence of malignancy or immature components.

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Inflammatory myofibroblastic tumor (IMT) is an uncommon neoplasm that rarely arises in the genitourinary system. IMTs in the vulva in infants are extremely rare in the literature. The tumor consists of myofibroblastic spindle cells accompanied by inflammatory cell infiltration. In this article, we aimed to describe the case of IMT in the vulva. A newborn girl presented with a mass in the vulva detected in the prenatal period. The patient was treated with surgery and chemotherapy. Follow-up 8 months after surgery showed no signs of recurrence. In conclusion, IMT has a variable clinical presentation, surgery is the optimal approach, but in cases without complete resection, chemotherapy is essential.

Lymphoma is one of the most common cancers of the orbital and lacrimal glands, after squamous cell carcinoma and melanoma. Based on cell origin, most lymphoma cases are classified as non–Hodgkin lymphoma. Orbital lymphoma can be either primary or secondary. The clinical manifestations of lymphoma are diverse, with the most common symptoms being bilateral or unilateral proptosis, limited eye motility, swelling, pain, changes in visual acuity, and diplopia. In this article, we describe the case of a 6-year-old male who presented with bilateral rapid orbital swelling for 10 days. This patient underwent surgical biopsy, and the final diagnosis was bilateral orbital secondary non–Hodgkin lymphoma.