A proliferating trichilemmal cyst in the perianal region: A case report

Pilar Cyst of the Dorsal Hand: A Rare Presentation of a Common Cyst

Pilar cysts are common benign cysts of follicular origin that typically arise in areas of skin containing dense hair follicles such as the scalp. Here we describe a unique case of a young woman who was found to have a pilar cyst on the dorsum of her hand, a rather atypical location given the relative lack of pilosebaceous units. This case illustrates the variability in pilar cyst presentation and the importance of considering a pilar cyst in the differential diagnosis of a patient presenting with a tumor of the dorsal hand.

Malignant proliferating trichilemmal tumor in abdominal wall: Report of a rare case at an uncommon site with literature review

The proliferating trichilemmal tumor (PTT) is a very rare cutaneous neoplasm that rarely is malignant. PTTs mainly occur in the scalp of elderly women. Only 10% occur in places other than scalp. We present a 62-year-old male patient with malignant PTT in his abdominal wall.

Giant, Bleeding, and Ulcerating Proliferating Trichilemmal Cyst, With Delayed Treatment Due to Coronavirus Outbreak: A Case Report and Review of the Literature

We report a case of a large, ulcerating proliferating trichilemmal cyst in a 76-year-old woman, with clinical, radiological, macroscopic, and microscopic correlation. The outbreak of the Coronavirus pandemic delayed her treatment. We review the literature on proliferating trichilemmal cysts, which are relatively rare tumors, which, generally, are considered benign. However, we found a high rate of malign cases, which stresses the importance of rapid surgical excision and histological diagnosis. Even though our proband had delayed treatment, the tumor did not transform into a malignant form.

Pilar cyst on the dorsum of hand: A case report and review of literature

RATIONALE

Pilar cyst mainly occurs on the scalp, but pilar cyst on the dorsum of hand has not been reported. Herein, we provide information to improve the clinical cognition of pilar cyst location.

PATIENTS CONCERNS

A 76-year-old man presented with a round nodule on the opisthenar of his right hand for two months without any subjective symptoms.

DIAGNOSES

Histological features of the lesion biopsy indicated the diagnosis of pilar cyst.

INTERVENTIONS

Surgical resection was made under local anesthesia.

OUTCOMES

Complete recovery was achieved after surgery.

CONCLUSION

Pilar cyst rarely occurs on the dorsum of hand and its diagnosis depends on histopathological examinations. Surgical resection is the only way to treat it.

Rare Presentation of Pilar Cyst of the Thumb

Pilar cysts are common cysts on the scalp and hair bearing area of the body. We found one such cyst on the dorsum of the thumb. There have been previous reports of them in the finger tips as a very rare occurrence. The site of this lesion supports the theory of a possible origin from the nail matrix. These lesions, even when found at unusual sites should have pilar cyst as a differential diagnosis. They must always be excised and subjected to careful histopathology to rule out proliferating trichilemmal cysts, which carry a rare risk of malignancy.