Reticulohistiocytic granuloma

MONDO:0002984

A rare cutaneous lesion composed of eosinophilic histiocytes, which are often multinucleated. The lesions are yellow-brown papules affecting any part of the body. Patients are usually adult men. The prognosis is excellent. -- 2003

Also known as: reticulohistiocytic granuloma (morphologic abnormality), solitary Reticulohistiocytoma, solitary reticulohistiocytoma, solitary histiocytoma, solitary reticulohistiocytosis

6 clinical trials for this condition and its sub-types, 0 tagged with Reticulohistiocytic granuloma itself.

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Where it sits in the disease tree

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↑ Histiocytosis (75)

Including sub-types (6) Tagged with Reticulohistiocytic granuloma (0)

Trials to join now! 1 Not yet finished but already full! 4 Completed 1

500 patients needed to unlock secrets of rare histiocytic disorders

Knowledge-focused Recruiting now

This study at Mayo Clinic will collect medical histories and blood, fluid, or tissue samples from 500 people with histiocytic disorders. Researchers will analyze these samples for molecular markers like BRAF V600E and PD-L1 to better understand the diseases. The goal is to gather…

Sponsor: Mayo Clinic • Aim: Knowledge-focused

Last updated Aug 06, 2026 00:00 UTC

Reticulohistiocytic granuloma

Where it sits in the disease tree

500 patients needed to unlock secrets of rare histiocytic disorders